Biotic pump: Difference between revisions

Content deleted Content added

Inline

Latest revision as of 22:15, 13 June 2024

The biotic pump theory may be able to help us better understand the role forests have on the water cycle.

The biotic pump is a theoretical concept that shows how forests create and control winds coming up from the ocean and in doing so bring water to the forests further inland.

This theory could explain the role forests play in the water cycle: trees take up water from the soil and microscopic pores on the leaves release unused water as vapor into the air. This process is known as evapotranspiration. The biotic pump describes how water vapor given off by trees can drive winds and these winds can cross continents and deliver this moisture to far off forests. With this process and the fact that the foliage in forests have surface area, the forests can deliver more moisture to the atmosphere than evaporation from a body of water or equivalent size. ^[1]

The previous hypothesis for this cycle describes how precipitation brought by winds are a direct result of changes in temperature and pressure. The biotic pump hypothesis demonstrates how important our rainforests are to the surrounding ecosystem. Rainforests are susceptible to anthropogenic factors (ie. deforestation), which could impact the biotic pump; therefore, impacting other ecosystems that rely on the biotic pump to thrive. Without our rainforests the weather would be less stable and rain could decrease in regions that rely on the biotic pump for water.^[2] Additionally, we can gain further insight into the evolution of angiosperms, as well as the correlation between ecology and the interior watering of the continents. By 2022 the concept had been more widely articulated and linked to the importance of stopping deforestation, restoring the hydrological cycle and planetary cooling. ^[2]^[3]

Concept

The term “biotic pump” infers a circulation system driven by biological processes. This concept shows forests as being the major factors in manipulating atmospheric processes to cycle rainfall taken up by trees throughout all continents and back to the atmosphere for further cycling.^[4] Evapotranspiration in coastal forests creates low atmospheric pressure creating a suction effect to draw in water vapor from the ocean. Prior to the biotic pump theory, trees were thought to have a passive role in the water cycle.^[5] By contrast those developing the biotic pump concept state that “forest and trees are prime regulators within the water, energy and carbon cycles.”^[6] In areas were there is more rain is currently being evaporated (on land versus over the ocean), the atmospheric volume decreases at a much quicker rater. This causes low pressure to form over this region causing greater moist air than the areas with less rain being evaporated. This causes the moisture in the air to go from an area of high pressure to an area of low pressure. Factors like full sunshine in forested areas and deserts can affect the transfer of moisture in the air. Increased amounts of evaporation or transpiration will cause a reduction in atmospheric pressure as clouds form, which will subsequently cause moist air to be drawn to regions where evapotranspiration is at its highest. In a desert this will correspond to the sea whereas in a forest, moist air from the sea will be drawn inland. The theory predicts two different types of coast to continental rainfall patterns, first in a forested area one can expect no decrease in rainfall as one moves inland in contrast to a deforested region where one observes an exponential decrease in annual rainfall. While current global climate models fit these patterns well, it is argued this is due to parametrization and not the veracity of the theories. ^[7]

Development of the theory

The biotic pump theory was developed by scientists Anastassia Makarieva and the late Victor Gorshov, who were Russian theoretical physicists working for the Theoretical Physics Division of the Petersberg Nuclear Physics Institute.^[8] Dr. Makarieva spent time recreationally and professionally in Russia's northern forests, the largest expanse of trees on the planet. She claims the conventional understanding that winds are driven by differences in air temperature does not fully explain the dynamics of wind, and came to understand that the pressure drop caused by water vapor turning into water was a more accurate model.^[9] Her initial studies were largely ignored and criticized.^[10]

The theory represents a paradigm shift away from a geo-mechanical view of climate dynamics to include biology as a driver of climate. As such the theory has faced criticism from mainstream climate sciences. Fred Pearce attributes this as being partly cultural. “Science, as I know from forty years of reporting, can be surprisingly tribal. Makarieva and Gorshkov have been outsiders: theoretical physicists in a world of climate science, Russians in a field dominated by Western scientists, and, in Makarieva’s case, a woman too”.^[9]

There are thought to be four terrestrial moisture recycling hubs, the Amazon Basin, the Congo Rainforest, South Asia and the Indonesian Archipelago. In particular, the hydrological dynamics of the Amazon Basin are still unclear, but point to the veracity of the biotic pump hypothesis. These processes contribute to a “safe operating space for humanity”.^[11] Additionally, the biotic pump theory can help explain other natural occurrences around the world. For example, the biotic pump can help explain why rainforests such as the Amazon and Congo are able to maintain high rainfall while other unforested biomes decrease in rainfall, as you get further inland.^[4]

Atmospheric (or flying) rivers, formerly called tropospheric rivers,^[12] are winds that pick up water vapor given off by forests and take the moisture to distant water basins.^[1] These rivers are enhanced by the biotic pump over large distances. The atmospheric river that flows over the Amazon travels south to provide the River Plate Basin with 50% of its rain.^[5] China's north-western rivers receive more than 70% of their precipitation from Euro and Northern Asia.^[13] By 2022, this concept had become widely accepted. ^[14]

How the biotic pump drives hydrological processes

The cycle begins when precipitation from the ocean is recycled through landscapes by cycles of precipitation and evapotranspiration. Through transpiration and condensation forests create low pressure that draw moist air from the ocean.^[7]^[8]
Transpiration and evaporation cycle water back into the atmosphere alongside microbes and volatile organic compounds (VOCs). Airborne microbes nucleate rain.^[15]
Biologically induced air currents transport atmospheric moisture further inland.
By providing rainfall vegetation is able to survive and possibly flourish perpetuating forest cover. The forested areas have a more moderate climate through the provision of transpirational cooling and shade. Light penetrating through to the forest floor may be as little as 1% compared to cleared adjacent areas.^[16] In areas where more cleared land is exposed conversion of radiant energy to sensible heat increases. Forested areas are significantly cooler than sparsely vegetated or bare earth.^[17]
Trees harvest water by intercepting fog and humid air. Atmospheric humidity condenses on leaves and branches. Biomimicry of this process happens with the use of fog nets.
Tree canopies slow the progression of rain to the soil surface and soften the impact. Additionally, through the provision of organic matter and the export of carbon through roots to the mycorrhizal network create soil carbon, enhancing soil structure for the infiltration and storage of water.
Soils with enhanced infiltration and storage rates mitigate flood impacts. This is further enhanced by forest cover protecting soil from erosion. Water infiltrated into the soil can help to replenish aquifers.

Connection with hydrological cycle and climate moderation

Of the estimated six trillion trees on the planet, roughly three trillion remain.^[9] Along with other terrestrial and marine vegetation, they photosynthesize sugars providing a foundational ingredient of life and growth. This process also produces oxygen and removes carbon dioxide from the air. Trees also provide food and timber, and foster biodiversity. Additionally, forested lands provide ample water for human and animal life, especially in the aptly-named rainforest.

By contrast, drylands comprise approximately 41% of the Earth's land area and are home to two billion people.^[18] These are fragile ecosystems. Adverse weather patterns and pressure from human activity can quickly deplete water resources.

Revegetation projects are yielding evidence of how regenerating vegetation restores rainfall. Rajendra Singh, the Waterman of India, led a movement that restored several rivers in Rhajastan increasing vegetation cover from 2% to 48%, cooling the region by 2^o Celsius, and increasing rainfall.^[17]^,^[19] Africa's Great Green Wall project was 15% complete in 2022. Modelling suggests that the completed wall may decrease average temperatures in the Sahel by as much as 1.5^o Celsius, but may raise temperatures in the hottest areas. Rainfall would increase, even doubling in some areas.^[20] China also has a 4,500 km Great Green Wall project planted to stop the advancing Gobi Desert.

The phrase bio-rain corridor describes a connected area of forest that maintains the flow of atmospheric moisture and precipitation.^[21] Continued deforestation poses the risk of disrupting flows of atmospheric moisture. In 2022 there were processes being developed to model the biotic pump mechanism to determine the impact of deforestation and the impacts of discontinuity of forest on atmospheric moisture flows.^[22]

There is great need to further understand these dynamics “Forest-driven water and energy cycles are poorly integrated into regional, national, continental and global decision-making on climate change adaptation, mitigation, land use and water management. This constrains humanity’s ability to protect our planet’s climate and life-sustaining functions.”^[6]

References

^ ^a ^b "A controversial Russian theory claims forests don't just make rain—they make wind". www.science.org. Retrieved 2023-03-04.
^ ^a ^b Bunyard, Peter Paul (2015-08-21). How the Biotic Pump links the hydrological and the rainforest to climate : ¿Is it for real? ¿How can we prove it?. Universidad Sergio Arboleda. doi:10.22518/9789588745886. ISBN 9789588745893.
^ Schwartz, Judith D. "Clearing Forests May Transform Local—and Global—Climate". Scientific American. Retrieved 2017-12-29.
^ ^a ^b Sheil, Douglas (2018-03-20). "Forests, atmospheric water and an uncertain future: the new biology of the global water cycle". Forest Ecosystems. 5 (1): 19. doi:10.1186/s40663-018-0138-y. ISSN 2197-5620.
^ ^a ^b Bunyard, Peter (2014). How the Biotic Pump Links the Hydrological and the Rainforest to Climate: Is It for Real? How Can We Prove It?. Universidad Sergio Arboleda. ISBN 978-958-8745-89-3.
^ ^a ^b ^c Ellison, David; Morris, Cindy E.; Locatelli, Bruno; Sheil, Douglas; Cohen, Jane; Murdiyarso, Daniel; Gutierrez, Victoria; Noordwijk, Meine van; Creed, Irena F.; Pokorny, Jan; Gaveau, David; Spracklen, Dominick V.; Tobella, Aida Bargués; Ilstedt, Ulrik; Teuling, Adriaan J. (2017-03-01). "Trees, forests and water: Cool insights for a hot world". Global Environmental Change. 43: 51–61. doi:10.1016/j.gloenvcha.2017.01.002. ISSN 0959-3780.
^ ^a ^b Sheil, Douglas; Murdiyarso, Daniel (2009-04-01). "How Forests Attract Rain: An Examination of a New Hypothesis". BioScience. 59 (4): 341–347. doi:10.1525/bio.2009.59.4.12. ISSN 0006-3568. S2CID 85905766.
^ ^a ^b Makarieva, A. M.; Gorshkov, V. G. (2007-03-27). "Biotic pump of atmospheric moisture as driver of the hydrological cycle on land". Hydrology and Earth System Sciences. 11 (2): 1013–1033. doi:10.5194/hess-11-1013-2007. ISSN 1027-5606.
^ ^a ^b ^c Pearce, Fred (2021). A trillion trees : how we can reforest our world. London. pp. 62–63. ISBN 978-1-78378-691-6. OCLC 1232226703.{{cite book}}: CS1 maint: location missing publisher (link)
^ Meesters, A. G. C. A.; Dolman, A. J.; Bruijnzeel, L. A. (2009-01-16). "Comment on "Biotic pump of atmospheric moisture as driver of the hydrological cycle on land" by A. M. Makarieva and V. G. Gorshkov, Hydrol. Earth Syst. Sci., 11, 1013–1033, 2007". Hydrology and Earth System Sciences Discussions. 6 (1): 401–416. doi:10.5194/hessd-6-401-2009.
^ Wunderling N, Wolf F, Tuinenburg OA, Staal A (November 2022). "Network motifs shape distinct functioning of Earth's moisture recycling hubs". Nature Communications. 13 (1): 6574. doi:10.1038/s41467-022-34229-1. PMC 9630528. PMID 36323658.
^ Zhu, Yong; Newell, Reginald E. (1994-09-01). "Atmospheric rivers and bombs". Geophysical Research Letters. 21 (18): 1999–2002. doi:10.1029/94GL01710.
^ Zhao, Tongtiegang; Zhao, Jianshi; Hu, Hongchang; Ni, Guangheng (2016-03-01). "Source of atmospheric moisture and precipitation over China's major river basins". Frontiers of Earth Science. 10 (1): 159–170. doi:10.1007/s11707-015-0497-4. ISSN 2095-0209. S2CID 55778662.
^ "What are atmospheric rivers?". Australian Geographic. 2022-10-09. Retrieved 2023-04-08.
^ Šantl-Temkiv T, Amato P, Casamayor EO, Lee PK, Pointing SB (July 2022). "Microbial ecology of the atmosphere". FEMS Microbiology Reviews. 46 (4). doi:10.1093/femsre/fuac009. PMC 9249623. PMID 35137064.
^ Chazdon, R. L.; Fetcher, N. (1984), Medina, E.; Mooney, H. A.; Vázquez-Yánes, C. (eds.), "Light Environments of Tropical Forests", Physiological ecology of plants of the wet tropics: Proceedings of an International Symposium Held in Oxatepec and Los Tuxtlas, Mexico, June 29 to July 6, 1983, Tasks for vegetation Science, vol. 12, Dordrecht: Springer Netherlands, pp. 27–36, doi:10.1007/978-94-009-7299-5_4, ISBN 978-94-009-7299-5, retrieved 2022-11-14
^ ^a ^b Bruce-Iri, Peter (2022). How plants cool and heal the climate : finding solutions close to home. Whangārei, New Zealand. ISBN 978-0-473-63353-0. OCLC 1349731259.{{cite book}}: CS1 maint: location missing publisher (link)
^ "Dryland - Global Assessment". www.fao.org. Retrieved 2022-11-14.
^ "Guardians of Nature: How Dr Rajendra Singh, the Waterman of India, Began His Journey Towards Water Conservation". The Weather Channel. Retrieved 2022-11-14.
^ "Africa's 'Great Green Wall' could have far-reaching climate effects". 2022-01-03. Retrieved 2022-11-14.
^ Lo, Alpha. "Bio-Rain Corridor". climatewaterproject.substack.com. Retrieved 2022-11-14.
^ Cantin, Guillaume; Verdière, Nathalie (2020-08-01). "Networks of forest ecosystems: Mathematical modeling of their biotic pump mechanism and resilience to certain patch deforestation". Ecological Complexity. 43: 100850. doi:10.1016/j.ecocom.2020.100850. ISSN 1476-945X.

[:7-1] "A controversial Russian theory claims forests don't just make rain—they make wind". www.science.org. Retrieved 2023-03-04.

[:8-2] Bunyard, Peter Paul (2015-08-21). How the Biotic Pump links the hydrological and the rainforest to climate : ¿Is it for real? ¿How can we prove it?. Universidad Sergio Arboleda. doi:10.22518/9789588745886. ISBN 9789588745893.

[3] Schwartz, Judith D. "Clearing Forests May Transform Local—and Global—Climate". Scientific American. Retrieved 2017-12-29.

[:6-4] Sheil, Douglas (2018-03-20). "Forests, atmospheric water and an uncertain future: the new biology of the global water cycle". Forest Ecosystems. 5 (1): 19. doi:10.1186/s40663-018-0138-y. ISSN 2197-5620.

[:22-5] Bunyard, Peter (2014). How the Biotic Pump Links the Hydrological and the Rainforest to Climate: Is It for Real? How Can We Prove It?. Universidad Sergio Arboleda. ISBN 978-958-8745-89-3.

[:32-6] Ellison, David; Morris, Cindy E.; Locatelli, Bruno; Sheil, Douglas; Cohen, Jane; Murdiyarso, Daniel; Gutierrez, Victoria; Noordwijk, Meine van; Creed, Irena F.; Pokorny, Jan; Gaveau, David; Spracklen, Dominick V.; Tobella, Aida Bargués; Ilstedt, Ulrik; Teuling, Adriaan J. (2017-03-01). "Trees, forests and water: Cool insights for a hot world". Global Environmental Change. 43: 51–61. doi:10.1016/j.gloenvcha.2017.01.002. ISSN 0959-3780.

[:02-7] Sheil, Douglas; Murdiyarso, Daniel (2009-04-01). "How Forests Attract Rain: An Examination of a New Hypothesis". BioScience. 59 (4): 341–347. doi:10.1525/bio.2009.59.4.12. ISSN 0006-3568. S2CID 85905766.

[:14-8] Makarieva, A. M.; Gorshkov, V. G. (2007-03-27). "Biotic pump of atmospheric moisture as driver of the hydrological cycle on land". Hydrology and Earth System Sciences. 11 (2): 1013–1033. doi:10.5194/hess-11-1013-2007. ISSN 1027-5606.

[:44-9] Pearce, Fred (2021). A trillion trees : how we can reforest our world. London. pp. 62–63. ISBN 978-1-78378-691-6. OCLC 1232226703.{{cite book}}: CS1 maint: location missing publisher (link)

[10] Meesters, A. G. C. A.; Dolman, A. J.; Bruijnzeel, L. A. (2009-01-16). "Comment on "Biotic pump of atmospheric moisture as driver of the hydrological cycle on land" by A. M. Makarieva and V. G. Gorshkov, Hydrol. Earth Syst. Sci., 11, 1013–1033, 2007". Hydrology and Earth System Sciences Discussions. 6 (1): 401–416. doi:10.5194/hessd-6-401-2009.

[11] Wunderling N, Wolf F, Tuinenburg OA, Staal A (November 2022). "Network motifs shape distinct functioning of Earth's moisture recycling hubs". Nature Communications. 13 (1): 6574. doi:10.1038/s41467-022-34229-1. PMC 9630528. PMID 36323658.

[12] Zhu, Yong; Newell, Reginald E. (1994-09-01). "Atmospheric rivers and bombs". Geophysical Research Letters. 21 (18): 1999–2002. doi:10.1029/94GL01710.

[13] Zhao, Tongtiegang; Zhao, Jianshi; Hu, Hongchang; Ni, Guangheng (2016-03-01). "Source of atmospheric moisture and precipitation over China's major river basins". Frontiers of Earth Science. 10 (1): 159–170. doi:10.1007/s11707-015-0497-4. ISSN 2095-0209. S2CID 55778662.

[14] "What are atmospheric rivers?". Australian Geographic. 2022-10-09. Retrieved 2023-04-08.

[15] Šantl-Temkiv T, Amato P, Casamayor EO, Lee PK, Pointing SB (July 2022). "Microbial ecology of the atmosphere". FEMS Microbiology Reviews. 46 (4). doi:10.1093/femsre/fuac009. PMC 9249623. PMID 35137064.

[16] Chazdon, R. L.; Fetcher, N. (1984), Medina, E.; Mooney, H. A.; Vázquez-Yánes, C. (eds.), "Light Environments of Tropical Forests", Physiological ecology of plants of the wet tropics: Proceedings of an International Symposium Held in Oxatepec and Los Tuxtlas, Mexico, June 29 to July 6, 1983, Tasks for vegetation Science, vol. 12, Dordrecht: Springer Netherlands, pp. 27–36, doi:10.1007/978-94-009-7299-5_4, ISBN 978-94-009-7299-5, retrieved 2022-11-14

[:52-17] Bruce-Iri, Peter (2022). How plants cool and heal the climate : finding solutions close to home. Whangārei, New Zealand. ISBN 978-0-473-63353-0. OCLC 1349731259.{{cite book}}: CS1 maint: location missing publisher (link)

[18] "Dryland - Global Assessment". www.fao.org. Retrieved 2022-11-14.

[19] "Guardians of Nature: How Dr Rajendra Singh, the Waterman of India, Began His Journey Towards Water Conservation". The Weather Channel. Retrieved 2022-11-14.

[20] "Africa's 'Great Green Wall' could have far-reaching climate effects". 2022-01-03. Retrieved 2022-11-14.

[21] Lo, Alpha. "Bio-Rain Corridor". climatewaterproject.substack.com. Retrieved 2022-11-14.

[22] Cantin, Guillaume; Verdière, Nathalie (2020-08-01). "Networks of forest ecosystems: Mathematical modeling of their biotic pump mechanism and resilience to certain patch deforestation". Ecological Complexity. 43: 100850. doi:10.1016/j.ecocom.2020.100850. ISSN 1476-945X.

[1]

[2]

[3]

[4]

[5]

[6]

[7]

[8]

[9]

[10]

[11]

[12]

[13]

[14]

[15]

[16]

[17]

[18]

[19]

[20]

[21]

[22]

@@ Line 1: / Line 1: @@
+{{Short description|Theory of how forests affect rainfall}}
-The theory of a '''biotic pump''' pertains to the importance of forests in the [[water cycle]], specifically, in determining the levels of rainfall a region will receive. It states that an increased amount of evaporation or [[transpiration]] will cause a reduction in atmospheric pressure as clouds form, which will subsequently cause moist air to be drawn to regions where evapotranspiration is at its highest. In a desert this will correspond to the sea whereas in a forest, moist air from the sea will be drawn inland. The theory predicts two different types of coast to contentinental rainfall patterns, first in a forested area one can expect no decrease in rainfall as one moves inland in contrast to a deforested region where one observes an exponential decrease in annual rainfall. While current global climate models fit these patterns well, it is argued this is due to [[Parametrization (atmospheric modeling)|parametrization]] and not the veracity of the theories.<ref name=":0">{{Cite journal|last1=Sheil|first1=Douglas|last2=Murdiyarso|first2=Daniel|date=2009-04-01|title=How Forests Attract Rain: An Examination of a New Hypothesis|url=https://academic.oup.com/bioscience/article/59/4/341/346941|journal=BioScience|language=en|volume=59|issue=4|pages=341–347|doi=10.1525/bio.2009.59.4.12|s2cid=85905766 |issn=0006-3568}}</ref>
+[[File:Watercyclesummary.jpg|thumb|The biotic pump theory may be able to help us better understand the role forests have on the water cycle.|440x440px]]
+The '''biotic pump''' is a theoretical concept that shows how forests create and control winds coming up from the ocean and in doing so bring water to the forests further inland.
-This theory is in contradiction of the more traditional view that surface winds are solely a direct product of differences in surface heating and heat released from condensation.<ref>{{Cite book|url=http://repository.usergioarboleda.edu.co/handle/11232/397|title=How the Biotic Pump links the hydrological and the rainforest to climate : ¿Is it for real? ¿How can we prove it?|last=Bunyard|first=Peter Paul|date=2015-08-21|publisher=Universidad Sergio Arboleda|isbn=9789588745893|language=en|doi=10.22518/9789588745886}}</ref><ref>{{Cite news |url=https://www.scientificamerican.com/article/clearing-forests-may-transform-local-and-global-climate/ |title=Clearing Forests May Transform Local—and Global—Climate |last=Schwartz |first=Judith D. |work=Scientific American |access-date=2017-12-29 |language=en}}</ref> The creators of the theory argue that phase changes in water play a greater role in atmospheric dynamics than currently acknowledged. Publication of the paper was preceded by an extended editorial debate at the publishing journal, based on highly critical peer reviews.<ref>{{Cite web|last=Pearce|first=Fred|date=2020-06-18|title=A controversial Russian theory claims forests don't just make rain—they make wind|url=https://www.science.org/content/article/controversial-russian-theory-claims-forests-don-t-just-make-rain-they-make-wind|access-date=2020-07-31|website=Science {{!}} AAAS|language=en}}</ref>
+This theory could explain the role forests play in the [[water cycle]]: trees take up water from the soil and microscopic pores on the leaves release unused water as vapor into the air. This process is known as evapotranspiration. The biotic pump describes how water vapor given off by trees can drive winds and these winds can cross continents and deliver this moisture to far off forests. With this process and the fact that the foliage in forests have surface area, the forests can deliver more moisture to the atmosphere than evaporation from a body of water or equivalent size. <ref name=":7">{{Cite web |title=A controversial Russian theory claims forests don't just make rain—they make wind |url=https://www.science.org/content/article/controversial-russian-theory-claims-forests-don-t-just-make-rain-they-make-wind |access-date=2023-03-04 |website=www.science.org |language=en}}</ref>
+The previous hypothesis for this cycle describes how precipitation brought by winds are a direct result of changes in temperature and pressure. The biotic pump hypothesis demonstrates how important our rainforests are to the surrounding ecosystem. Rainforests are susceptible to anthropogenic factors (ie. deforestation), which could impact the biotic pump; therefore, impacting other ecosystems that rely on the biotic pump to thrive. Without our rainforests the weather would be less stable and rain could decrease in regions that rely on the biotic pump for water.<ref name=":8">{{Cite book |last=Bunyard |first=Peter Paul |url=http://repository.usergioarboleda.edu.co/handle/11232/397 |title=How the Biotic Pump links the hydrological and the rainforest to climate : ¿Is it for real? ¿How can we prove it? |date=2015-08-21 |publisher=Universidad Sergio Arboleda |isbn=9789588745893 |language=en |doi=10.22518/9789588745886}}</ref> Additionally, we can gain further insight into the evolution of [[Angiosperm|angiosperms]], as well as the correlation between ecology and the interior watering of the continents. By 2022 the concept had been more widely articulated and linked to the importance of stopping deforestation, restoring the hydrological cycle and planetary cooling. <ref name=":8" /><ref>{{Cite news |last=Schwartz |first=Judith D. |title=Clearing Forests May Transform Local—and Global—Climate |language=en |work=Scientific American |url=https://www.scientificamerican.com/article/clearing-forests-may-transform-local-and-global-climate/ |access-date=2017-12-29}}</ref>
-The term biotic pump first appeared in a journal article in 2007<ref name=":1">{{Cite journal |last1=Makarieva |first1=A. M. |last2=Gorshkov |first2=V. G. |date=2007-03-27 |title=Biotic pump of atmospheric moisture as driver of the hydrological cycle on land |url=https://hess.copernicus.org/articles/11/1013/2007/ |journal=Hydrology and Earth System Sciences |language=English |volume=11 |issue=2 |pages=1013–1033 |doi=10.5194/hess-11-1013-2007 |issn=1027-5606|doi-access=free }}</ref> and was initially ignored and criticised. By 2022 the concept had been more widely articulated and linked to the importance of stopping deforestation, restoring the hydrological cycle and planetary cooling.
 == Concept ==
+[[File:Amazon Manaus forest.jpg|thumb|View of Amazon basin forest north of Manaus, Brazil.|372x372px]]
-The term “biotic pump” infers a circulation system driven by biological processes. The biotic pump concept attributes forests and other forms of vegetation for creating atmospheric dynamics that cycle rainfall absorbed by trees back to the atmosphere for further cycling. [[Evapotranspiration]] in coastal forests creates low atmospheric pressure creating a suction effect to draw in water vapour from the ocean. Before the biotic pump was articulated trees were relegated to having a passive role in the water cycle.<ref name=":2">{{Cite book |last=Bunyard |first=Peter |title=How the Biotic Pump Links the Hydrological and the Rainforest to Climate : ¿Is It for Real? ¿How Can We Prove It? https://repository.usergioarboleda.edu.co/handle/11232/397. |publisher=Universidad Sergio Arboleda |year=2014 |isbn=978-958-8745-89-3}}</ref> By contrast those developing the biotic pump concept state that “forest and trees are prime regulators within the water, energy and carbon cycles.”<ref name=":3">{{Cite journal |last1=Ellison |first1=David |last2=Morris |first2=Cindy E. |last3=Locatelli |first3=Bruno |last4=Sheil |first4=Douglas |last5=Cohen |first5=Jane |last6=Murdiyarso |first6=Daniel |last7=Gutierrez |first7=Victoria |last8=Noordwijk |first8=Meine van |last9=Creed |first9=Irena F. |last10=Pokorny |first10=Jan |last11=Gaveau |first11=David |last12=Spracklen |first12=Dominick V. |last13=Tobella |first13=Aida Bargués |last14=Ilstedt |first14=Ulrik |last15=Teuling |first15=Adriaan J. |date=2017-03-01 |title=Trees, forests and water: Cool insights for a hot world |journal=Global Environmental Change |language=en |volume=43 |pages=51–61 |doi=10.1016/j.gloenvcha.2017.01.002 |issn=0959-3780|doi-access=free }}</ref>
+The term “biotic pump” infers a circulation system driven by biological processes. This concept shows forests as being the major factors in manipulating atmospheric processes to cycle rainfall taken up by trees throughout all continents and back to the atmosphere for further cycling.<ref name=":6">{{Cite journal |last=Sheil |first=Douglas |date=2018-03-20 |title=Forests, atmospheric water and an uncertain future: the new biology of the global water cycle |journal=Forest Ecosystems |volume=5 |issue=1 |pages=19 |doi=10.1186/s40663-018-0138-y |issn=2197-5620 |doi-access=free }}</ref> [[Evapotranspiration]] in coastal forests creates low atmospheric pressure creating a suction effect to draw in water vapor from the ocean. Prior to the biotic pump theory, trees were thought to have a passive role in the water cycle.<ref name=":22">{{Cite book |last=Bunyard |first=Peter |title=How the Biotic Pump Links the Hydrological and the Rainforest to Climate: Is It for Real? How Can We Prove It? |url=https://repository.usergioarboleda.edu.co/handle/11232/397 |publisher=Universidad Sergio Arboleda |year=2014 |isbn=978-958-8745-89-3}}</ref> By contrast those developing the biotic pump concept state that “forest and trees are prime regulators within the water, energy and carbon cycles.”<ref name=":32">{{Cite journal |last1=Ellison |first1=David |last2=Morris |first2=Cindy E. |last3=Locatelli |first3=Bruno |last4=Sheil |first4=Douglas |last5=Cohen |first5=Jane |last6=Murdiyarso |first6=Daniel |last7=Gutierrez |first7=Victoria |last8=Noordwijk |first8=Meine van |last9=Creed |first9=Irena F. |last10=Pokorny |first10=Jan |last11=Gaveau |first11=David |last12=Spracklen |first12=Dominick V. |last13=Tobella |first13=Aida Bargués |last14=Ilstedt |first14=Ulrik |last15=Teuling |first15=Adriaan J. |date=2017-03-01 |title=Trees, forests and water: Cool insights for a hot world |journal=Global Environmental Change |language=en |volume=43 |pages=51–61 |doi=10.1016/j.gloenvcha.2017.01.002 |issn=0959-3780 |doi-access=free}}</ref> In areas were there is more rain is currently being evaporated (on land versus over the ocean), the atmospheric volume decreases at a much quicker rater. This causes low pressure to form over this region causing greater moist air than the areas with less rain being evaporated. This causes the moisture in the air to go from an area of high pressure to an area of low pressure. Factors like full sunshine in forested areas and deserts can affect the transfer of moisture in the air. Increased amounts of evaporation or [[transpiration]] will cause a reduction in atmospheric pressure as clouds form, which will subsequently cause moist air to be drawn to regions where evapotranspiration is at its highest. In a desert this will correspond to the sea whereas in a forest, moist air from the sea will be drawn inland. The theory predicts two different types of coast to continental rainfall patterns, first in a forested area one can expect no decrease in rainfall as one moves inland in contrast to a deforested region where one observes an exponential decrease in annual rainfall. While current global climate models fit these patterns well, it is argued this is due to [[Parametrization (atmospheric modeling)|parametrization]] and not the veracity of the theories. <ref name=":02">{{Cite journal |last1=Sheil |first1=Douglas |last2=Murdiyarso |first2=Daniel |date=2009-04-01 |title=How Forests Attract Rain: An Examination of a New Hypothesis |url=https://academic.oup.com/bioscience/article/59/4/341/346941 |journal=BioScience |language=en |volume=59 |issue=4 |pages=341–347 |doi=10.1525/bio.2009.59.4.12 |issn=0006-3568 |s2cid=85905766|url-access=subscription }}</ref>
-Peter Bunyard describes the operation of the biotic pump in the context of the Amazon Forest.<blockquote>[[File:Amazon Manaus forest.jpg|thumb|View of Amazon basin forest north of Manaus, Brazil.]]Covering some 5 million square kilometres, the Amazon rainforests act like the pulsating heart of the Earth, pumping out nearly 7 million million tonnes (10<sup>12</sup>) per year of water vapour through their leaves. That gigantic amount of water vapour, equal to 19,000 million tonnes per day, gets chilled as the humid air rises above the surface and, as saturation is reached, begins the process of condensing into rain clouds. As the air rises further, the clouds take on the form of cumulo-nimbus, generating vast thunderstorms. In fact, a consequence of water vapour taking up a volume more than one thousand times greater than its liquid phase (18 ml of liquid water to 22.4 litres of vapour at STP), is an abrupt drop in pressure and an implosive flow of air from below to fill the partial vacuum. A powerful airmass circulation then takes place as air streams across the tropical Atlantic Ocean, picking up masses of water vapour en route and forming what we know of as the Trade Winds. The jet streams that form high above the rainforest, taking the thinned air at speed across the Atlantic and back to Africa, then complete that circulation.<ref>Bunyard, Peter (2022) ''Winds and rain, the role of the biotic pump.''To be published.</ref></blockquote>
 == Development of the theory ==
 [[File:Forest atmospheric moisture.jpg|thumb|Atmospheric moisture flows around and through indigenous forest in Whangārei, Aotearoa (New Zealand)]]
+The biotic pump theory was developed by scientists Anastassia Makarieva and the late Victor Gorshov, who were Russian theoretical physicists working for the Theoretical Physics Division of the Petersberg Nuclear Physics Institute.<ref name=":14">{{Cite journal |last1=Makarieva |first1=A. M. |last2=Gorshkov |first2=V. G. |date=2007-03-27 |title=Biotic pump of atmospheric moisture as driver of the hydrological cycle on land |url=https://hess.copernicus.org/articles/11/1013/2007/ |journal=Hydrology and Earth System Sciences |language=English |volume=11 |issue=2 |pages=1013–1033 |doi=10.5194/hess-11-1013-2007 |issn=1027-5606 |doi-access=free}}</ref>   Dr. Makarieva spent time recreationally and professionally in Russia's northern forests, the largest expanse of trees on the planet. She claims the conventional understanding that winds are driven by differences in air temperature does not fully explain the dynamics of wind, and came to understand that the pressure drop caused by water vapor turning into water was a more accurate model.<ref name=":44">{{Cite book |last=Pearce |first=Fred |url=https://www.worldcat.org/oclc/1232226703 |title=A trillion trees : how we can reforest our world |date=2021 |isbn=978-1-78378-691-6 |location=London |pages=62–63 |oclc=1232226703}}</ref> Her initial studies were largely ignored and criticized.<ref>{{Cite journal |last1=Meesters |first1=A. G. C. A. |last2=Dolman |first2=A. J. |last3=Bruijnzeel |first3=L. A. |date=2009-01-16 |title=Comment on "Biotic pump of atmospheric moisture as driver of the hydrological cycle on land" by A. M. Makarieva and V. G. Gorshkov, Hydrol. Earth Syst. Sci., 11, 1013–1033, 2007 |journal=Hydrology and Earth System Sciences Discussions |volume= 6 |issue=1 | pages=401-416 |doi=10.5194/hessd-6-401-2009 |doi-access=free }}</ref>
-[[Atmospheric river|Atmospheric (or flying) rivers]] is a phenomena related to the biotic pump. Originally called tropospheric rivers in 1992,<ref>{{Cite journal |last1=Newell |first1=Reginald E. |last2=Newell |first2=Nicholas E. |last3=Zhu |first3=Yong |last4=Scott |first4=Courtney |date=1992-12-24 |title=Tropospheric rivers? - A pilot study |url=http://doi.wiley.com/10.1029/92GL02916 |journal=Geophysical Research Letters |language=en |volume=19 |issue=24 |pages=2401–2404 |doi=10.1029/92GL02916}}</ref> two years later in 1994 Yong Zhu and Reginald Newall first used the term atmospheric rivers.<ref>{{Cite journal |last1=Zhu |first1=Yong |last2=Newell |first2=Reginald E. |date=1994-09-01 |title=Atmospheric rivers and bombs |url=http://doi.wiley.com/10.1029/94GL01710 |journal=Geophysical Research Letters |language=en |volume=21 |issue=18 |pages=1999–2002 |doi=10.1029/94GL01710}}</ref> These aerial rivers distribute rain, enhanced by the biotic pump over large distances. The atmospheric river that flows over the Amazon travels south to provide the River Plate Basin with 50% of its rain.<ref name=":2" /> China's north-western rivers receive more than 70% of their precipitation from Euro and Northern Asia.<ref>{{Cite journal |last1=Zhao |first1=Tongtiegang |last2=Zhao |first2=Jianshi |last3=Hu |first3=Hongchang |last4=Ni |first4=Guangheng |date=2016-03-01 |title=Source of atmospheric moisture and precipitation over China's major river basins |url=https://doi.org/10.1007/s11707-015-0497-4 |journal=Frontiers of Earth Science |language=en |volume=10 |issue=1 |pages=159–170 |doi=10.1007/s11707-015-0497-4 |s2cid=55778662 |issn=2095-0209}}</ref> By 2022, 30 years from the first mention of tropospheric rivers in a journal paper, the concept had become widely accepted<ref>{{Cite web |date=2022-10-09 |title=What are atmospheric rivers? |url=https://www.australiangeographic.com.au/blogs/dr-karl-need-to-know/2022/10/what-are-atmospheric-rivers/ |access-date=2022-11-14 |website=Australian Geographic |language=en-US}}</ref><sup>,</sup> <ref>{{Citation |title=What is an Atmospheric River? |url=https://www.youtube.com/watch?v=NULrvr8pTBg |language=en |access-date=2022-11-14}}</ref> and featured in back-stories to weather events.<ref>{{Cite web |date=2022-11-02 |title='Atmospheric river' set to deliver intense rainfall in Westland, Buller |url=https://www.rnz.co.nz/news/national/477878/atmospheric-river-set-to-deliver-intense-rainfall-in-westland-buller |access-date=2022-11-14 |website=RNZ |language=en-nz}}</ref><sup>,</sup><ref>{{Cite web |last=Inc |first=Pelmorex Weather Networks |title=Atmospheric rivers to bring over 100+ mm of rain to B.C. |url=https://www.theweathernetwork.com/ca/news/article/two-atmospheric-rivers-forecast-to-hit-the-b-c-coast-within-a-week |access-date=2022-11-14 |website=www.theweathernetwork.com |language=en-CA}}</ref>
+The theory represents a [[paradigm shift]] away from a geo-mechanical view of climate dynamics to include biology as a driver of climate. As such the theory has faced criticism from mainstream climate sciences. [[Fred Pearce]] attributes this as being partly cultural. “Science, as I know from forty years of reporting, can be surprisingly tribal. Makarieva and Gorshkov have been outsiders: theoretical physicists in a world of climate science, Russians in a field dominated by Western scientists, and, in Makarieva’s case, a woman too”.<ref name=":44" />
-The biotic pump concept is more recent. The first paper naming the biotic pump, authored by Anastassia Makarieva<ref>{{Cite web |title=Dr. Anastassia M Makarieva |url=https://www.icer.org.au/team/dr.-anastassia-m-makarieva |access-date=2022-11-14 |website=ICER |language=en}}</ref> and the late Victor Gorshov was published in 2007,<ref name=":1" /> fifteen years after the first mention of tropospheric rivers. These Russian theoretical physicists worked from the Theoretical Physics Division of the Petersberg Nuclear Physics Institute. Dr. Makarieva spent time recreationally and professionally in Russia's northern forests, the largest expanse of trees on the planet.<ref name=":4">{{Cite book |last=Pearce |first=Fred |url=https://www.worldcat.org/oclc/1232226703 |title=A trillion trees : how we can reforest our world |date=2021 |isbn=978-1-78378-691-6 |location=London |pages=62–63 |oclc=1232226703}}</ref> She claims the conventional understanding that winds are driven by differences in air temperature does not fully explain the dynamics of wind, and came to understand that the pressure drop caused by water vapour turning into water was a more accurate model.<ref name=":4" /> The 2007 paper was largely ignored but also criticised.<ref>{{Cite journal |last1=Meesters |first1=A. G. C. A. |last2=Dolman |first2=A. J. |last3=Bruijnzeel |first3=L. A. |date=2009-01-16 |title=Comment on &quot;Biotic pump of atmospheric moisture as driver of the hydrological cycle on land&quot; by A. M. Makarieva and V. G. Gorshkov, Hydrol. Earth Syst. Sci., 11, 1013–1033, 2007 |url=https://doi.org/10.5194/hessd-6-401-2009 |access-date=2022-11-14 |website=doi.org |doi=10.5194/hessd-6-401-2009}}</ref> Further papers were published to develop the concept <ref>{{Cite journal |last1=Makar’eva |first1=A. M. |last2=Gorshkov |first2=V. G. |date=2008-12-01 |title=The forest biotic pump of river basins |url=https://doi.org/10.1134/S1067413608070114 |journal=Russian Journal of Ecology |language=en |volume=39 |issue=7 |pages=537–540 |doi=10.1134/S1067413608070114 |s2cid=19418661 |issn=1608-3334}}</ref><sup>,</sup><ref>{{Cite journal |last1=Makarieva |first1=Anastassia M. |last2=Gorshkov |first2=Victor G. |date=2010-01-01 |title=The Biotic Pump: Condensation, atmospheric dynamics and climate |url=https://www.inderscienceonline.com/doi/abs/10.1504/IJW.2010.038729 |journal=International Journal of Water |volume=5 |issue=4 |pages=365–385 |doi=10.1504/IJW.2010.038729 |issn=1465-6620}}</ref> with Dr. Makarieva continuing to write prolifically on the subject<ref>{{Cite web |last=Makarieva |first=Anastassia |date=2022 |title=Anastassia Makarieva |url=https://www.researchgate.net/profile/Anastassia-Makarieva/research |access-date=15 November 2022 |website=ResearchGate}}</ref> often with Brazilian scientist Antonio Nobre.<ref>{{Cite journal |last1=Makarieva |first1=A. M. |last2=Gorshkov |first2=V. G. |last3=Sheil |first3=D. |last4=Nobre |first4=A. D. |last5=Li |first5=B.-L. |date=2013-01-25 |title=Where do winds come from? A new theory on how water vapor condensation influences atmospheric pressure and dynamics |url=https://acp.copernicus.org/articles/13/1039/2013/ |journal=Atmospheric Chemistry and Physics |language=English |volume=13 |issue=2 |pages=1039–1056 |doi=10.5194/acp-13-1039-2013 |issn=1680-7316|doi-access=free }}</ref><ref>{{Cite web |date=2018-04-16 |title=Antonio Nobre: A scientist advocates for the Amazon |url=https://believe.earth/en/antonio-nobre-a-scientist-advocates-for-the-amazon/ |access-date=2022-11-14 |website=Believe Earth |language=en-US}}</ref>
+There are thought to be four terrestrial moisture recycling hubs, the Amazon Basin, the Congo Rainforest, South Asia and the Indonesian Archipelago. In particular, the hydrological dynamics of the Amazon Basin are still unclear, but point to the veracity of the biotic pump hypothesis. These processes contribute to a “safe operating space for humanity”.<ref>{{cite journal |vauthors=Wunderling N, Wolf F, Tuinenburg OA, Staal A |date=November 2022 |title=Network motifs shape distinct functioning of Earth's moisture recycling hubs |journal=Nature Communications |volume=13 |issue=1 |pages=6574 |doi=10.1038/s41467-022-34229-1 |pmc=9630528 |pmid=36323658}}</ref> Additionally, the biotic pump theory can help explain other natural occurrences around the world. For example, the biotic pump can help explain why rainforests such as the Amazon and Congo are able to maintain high rainfall while other unforested biomes decrease in rainfall, as you get further inland.<ref name=":6" />
-The theory represents a [[paradigm shift]] away from a geo-mechanical view of climate dynamics<ref>{{Citation |title=The Biotic Pump: How Forests Create Rain |url=https://www.youtube.com/watch?v=kKL40aBg-7E |language=en |access-date=2022-11-14}}</ref> to include biology as a driver of climate. As such the theory as faced criticism from mainstream climate sciences. [[Fred Pearce]] attributes this as being partly cultural. “Science, as I know from forty years of reporting, can be surprisingly tribal. Makarieva and Gorshkov have been outsiders: theoretical physicists in a world of climate science, Russians in a field dominated by Western scientists, and, in Makarieva’s case, a woman too”.<ref name=":4" />
+[[Atmospheric river|Atmospheric (or flying) rivers]], formerly called tropospheric rivers,<ref>{{Cite journal |last1=Zhu |first1=Yong |last2=Newell |first2=Reginald E. |date=1994-09-01 |title=Atmospheric rivers and bombs |url=http://doi.wiley.com/10.1029/94GL01710 |journal=Geophysical Research Letters |language=en |volume=21 |issue=18 |pages=1999–2002 |doi=10.1029/94GL01710|doi-access=free }}</ref> are winds that pick up water vapor given off by forests and take the moisture to distant water basins.<ref name=":7" />  These rivers are enhanced by the biotic pump over large distances. The atmospheric river that flows over the Amazon travels south to provide the [[Río de la Plata Basin|River Plate Basin]] with 50% of its rain.<ref name=":22" /> China's north-western rivers receive more than 70% of their precipitation from Euro and Northern Asia.<ref>{{Cite journal |last1=Zhao |first1=Tongtiegang |last2=Zhao |first2=Jianshi |last3=Hu |first3=Hongchang |last4=Ni |first4=Guangheng |date=2016-03-01 |title=Source of atmospheric moisture and precipitation over China's major river basins |url=https://doi.org/10.1007/s11707-015-0497-4 |journal=Frontiers of Earth Science |language=en |volume=10 |issue=1 |pages=159–170 |doi=10.1007/s11707-015-0497-4 |s2cid=55778662 |issn=2095-0209}}</ref> By 2022, this concept had become widely accepted. <ref>{{Cite web |date=2022-10-09 |title=What are atmospheric rivers? |url=https://www.australiangeographic.com.au/blogs/dr-karl-need-to-know/2022/10/what-are-atmospheric-rivers/ |access-date=2023-04-08 |website=Australian Geographic |language=en-US}}</ref>
-A 2022 article identifies four terrestrial moisture recycling hubs, the Amazon Basin, the Congo Rainforest, South Asia and the Indonesian Archipelago. In particular, the hydrological dynamics of the Amazon Basin are still unclear, but point to the veracity of the biotic pump hypothesis. The authors emphasise that these processes contribute to a “safe operating space for humanity”.<ref>{{cite journal | vauthors = Wunderling N, Wolf F, Tuinenburg OA, Staal A | title = Network motifs shape distinct functioning of Earth's moisture recycling hubs | journal = Nature Communications | volume = 13 | issue = 1 | pages = 6574 | date = November 2022 | pmid = 36323658 | pmc = 9630528 | doi = 10.1038/s41467-022-34229-1 }}</ref>
 == How the biotic pump drives hydrological processes ==
-[[File:Biotic pump 3.png|thumb|The hydrological dynamics of the biotic pump.]]
+[[File:Biotic pump 3.png|thumb|The hydrological dynamics of the biotic pump.<ref name=":32" />|none|756x756px]]
-The diagram in this section, from the Journal article  ''Trees, forests and water: Cool insights for a hot world'' <ref name=":3" /> outlines the hydrological dynamics that biotic pump drives.
-# The cycle begins when precipitation from the ocean is recycled through landscapes by cycles of precipitation and evapotranspiration. Through transpiration and condensation forests create low pressure that draw moist air from the ocean.<ref name=":0" /><ref name=":1" />
+# The cycle begins when precipitation from the ocean is recycled through landscapes by cycles of precipitation and evapotranspiration. Through transpiration and condensation forests create low pressure that draw moist air from the ocean.<ref name=":02" /><ref name=":14" />
-# [[Transpiration]] and evaporation cycle water back into the atmosphere alongside microbes and [[Volatile organic compound#Biologically generated VOCs|volatile organic compounds]] (VOCs). Airborne microbes nucleate rain.<ref>{{cite journal | vauthors = Šantl-Temkiv T, Amato P, Casamayor EO, Lee PK, Pointing SB | title = Microbial ecology of the atmosphere | journal = FEMS Microbiology Reviews | volume = 46 | issue = 4 | date = July 2022 | pmid = 35137064 | pmc = 9249623 | doi = 10.1093/femsre/fuac009 }}</ref>
+# [[Transpiration]] and evaporation cycle water back into the atmosphere alongside microbes and [[Volatile organic compound#Biologically generated VOCs|volatile organic compounds]] (VOCs). Airborne microbes nucleate rain.<ref>{{cite journal |vauthors=Šantl-Temkiv T, Amato P, Casamayor EO, Lee PK, Pointing SB |date=July 2022 |title=Microbial ecology of the atmosphere |journal=FEMS Microbiology Reviews |volume=46 |issue=4 |doi=10.1093/femsre/fuac009 |pmc=9249623 |pmid=35137064}}</ref>
 # Biologically induced air currents transport atmospheric moisture further inland.
-# By providing rainfall vegetation is able to survive and possibly flourish perpetuating forest cover. The forested areas have a more moderate climate through the provision of transpirational cooling and shade. Light penetrating through to the forest floor may be as little as 1% compared to cleared adjacent areas.<ref>{{Citation |last1=Chazdon |first1=R. L. |title=Light Environments of Tropical Forests |date=1984 |url=https://doi.org/10.1007/978-94-009-7299-5_4 |work=Physiological ecology of plants of the wet tropics: Proceedings of an International Symposium Held in Oxatepec and Los Tuxtlas, Mexico, June 29 to July 6, 1983 |pages=27–36 |editor-last=Medina |editor-first=E. |place=Dordrecht |publisher=Springer Netherlands |language=en |doi=10.1007/978-94-009-7299-5_4 |isbn=978-94-009-7299-5 |access-date=2022-11-14 |last2=Fetcher |first2=N. |editor2-last=Mooney |editor2-first=H. A. |editor3-last=Vázquez-Yánes |editor3-first=C.}}</ref> In areas where more cleared land is exposed conversion of radiant energy to [[sensible heat]] increases. Forested areas are significantly cooler than sparsely vegetated or bare earth.<ref name=":5">{{Cite book |last=Bruce-Iri |first=Peter |url=https://www.worldcat.org/oclc/1349731259 |title=How plants cool and heal the climate : finding solutions close to home |date=2022 |isbn=978-0-473-63353-0 |location=Whangārei, New Zealand |oclc=1349731259}}</ref>
+# By providing rainfall vegetation is able to survive and possibly flourish perpetuating forest cover. The forested areas have a more moderate climate through the provision of transpirational cooling and shade. Light penetrating through to the forest floor may be as little as 1% compared to cleared adjacent areas.<ref>{{Citation |last1=Chazdon |first1=R. L. |title=Light Environments of Tropical Forests |date=1984 |url=https://doi.org/10.1007/978-94-009-7299-5_4 |work=Physiological ecology of plants of the wet tropics: Proceedings of an International Symposium Held in Oxatepec and Los Tuxtlas, Mexico, June 29 to July 6, 1983 |pages=27–36 |editor-last=Medina |editor-first=E. |access-date=2022-11-14 |place=Dordrecht |publisher=Springer Netherlands |language=en |doi=10.1007/978-94-009-7299-5_4 |isbn=978-94-009-7299-5 |last2=Fetcher |first2=N. |series=Tasks for vegetation Science |volume=12 |editor2-last=Mooney |editor2-first=H. A. |editor3-last=Vázquez-Yánes |editor3-first=C.}}</ref> In areas where more cleared land is exposed conversion of radiant energy to [[sensible heat]] increases. Forested areas are significantly cooler than sparsely vegetated or bare earth.<ref name=":52">{{Cite book |last=Bruce-Iri |first=Peter |url=https://www.worldcat.org/oclc/1349731259 |title=How plants cool and heal the climate : finding solutions close to home |date=2022 |isbn=978-0-473-63353-0 |location=Whangārei, New Zealand |oclc=1349731259}}</ref>
-# Trees harvest water by intercepting fog and humid air. Atmospheric humidity condenses on leaves and branches.<ref>{{Citation |title=How Trees Make Water |url=https://www.youtube.com/watch?v=oY8ds4BiG1A |language=en |access-date=2022-11-14}}</ref> Biomimicry of this process happens with the use of [[Fog collection|fog nets]].
+# Trees harvest water by intercepting fog and humid air. Atmospheric humidity condenses on leaves and branches. Biomimicry of this process happens with the use of [[Fog collection|fog nets]].
 # Tree canopies slow the progression of rain to the soil surface and soften the impact. Additionally, through the provision of organic matter and the export of carbon through roots to the [[mycorrhizal network]] create [[soil carbon]], enhancing soil structure for the infiltration and storage of water.
-# Soils with enhanced infiltration and storage rates mitigate flood impacts. This is further enhanced by forest cover protecting soil from erosion. Water infiltrated into the soil can help to replenish [[aquifer]]s.
+# Soils with enhanced infiltration and storage rates mitigate flood impacts. This is further enhanced by forest cover protecting soil from erosion. Water infiltrated into the soil can help to replenish [[Aquifer|aquifers]].
-== The significance of the biotic pump in the hydrological cycle and climate moderation ==
+== Connection with hydrological cycle and climate moderation ==
-Of the estimated six trillion trees on the planet, roughly three trillion remain.<ref name=":4" /> Along with other terrestrial and marine vegetation they [[photosynthesis]]e sugars providing a foundational ingredient of life and growth. This process also produces oxygen and removes carbon dioxide from the air.  Trees also provide food and timber, and foster biodiversity. The growing evidence of the biological influences of climate add a further benefit of trees. Forested lands provide ample water for human and animal life, especially in the aptly-named [[rainforest]].
+Of the estimated six trillion trees on the planet, roughly three trillion remain.<ref name=":44" /> Along with other terrestrial and marine vegetation, they [[Photosynthesis|photosynthesize]] sugars providing a foundational ingredient of life and growth. This process also produces oxygen and removes carbon dioxide from the air.  Trees also provide food and timber, and foster biodiversity. Additionally, forested lands provide ample water for human and animal life, especially in the aptly-named [[rainforest]].
-By contrast, [[drylands]] comprise approximately 41% of the earth's land area and are home to two billion people.<ref>{{Cite web |title=Dryland - Global Assessment |url=http://www.fao.org/dryland-assessment/ |access-date=2022-11-14 |website=www.fao.org |language=en}}</ref> These are fragile ecosystems. Adverse weather patterns and pressure from human activity can quickly deplete water resources.
+By contrast, [[drylands]] comprise approximately 41% of the Earth's land area and are home to two billion people.<ref>{{Cite web |title=Dryland - Global Assessment |url=http://www.fao.org/dryland-assessment/ |access-date=2022-11-14 |website=www.fao.org |language=en}}</ref> These are fragile ecosystems. Adverse weather patterns and pressure from human activity can quickly deplete water resources.
-Revegetation projects are yielding evidence of how regenerating vegetation restores rainfall. [[Rajendra Singh]], the Waterman of India led a movement that restored several rivers in Rhajastan increasing vegetation cover from 2% to 48%, cooling the region by 2<sup>o</sup> Celsius, and increasing rainfall.<ref name=":5" /><sup>,</sup><ref>{{Cite web |title=Guardians of Nature: How Dr Rajendra Singh, the Waterman of India, Began His Journey Towards Water Conservation |url=https://weather.com/en-IN/india/news/news/2020-06-05-waterman-india-began-journey-towards-water-conservation |access-date=2022-11-14 |website=The Weather Channel |language=en-IN}}</ref> [[Great Green Wall (Africa)|Africa's Great Green Wall]] project was 15% complete in 2022. Modelling suggests that the completed wall may decrease average temperatures in the Sahel by as much as 1.5<sup>o</sup> Celsius, but may raise temperatures in the hottest areas. Rainfall would increase, even doubling in some areas.<ref>{{Cite web |date=2022-01-03 |title=Africa's 'Great Green Wall' could have far-reaching climate effects |url=https://www.sciencenews.org/article/africa-great-green-wall-trees-sahel-climate-change |access-date=2022-11-14 |language=en-US}}</ref>  China also has a 4,500&nbsp;km Great Green Wall project planted to stop the advancing [[Great Green Wall (China)|Gobi Desert]].
+Revegetation projects are yielding evidence of how regenerating vegetation restores rainfall. [[Rajendra Singh]], the Waterman of India, led a movement that restored several rivers in Rhajastan increasing vegetation cover from 2% to 48%, cooling the region by 2<sup>o</sup> Celsius, and increasing rainfall.<ref name=":52" /><sup>,</sup><ref>{{Cite web |title=Guardians of Nature: How Dr Rajendra Singh, the Waterman of India, Began His Journey Towards Water Conservation |url=https://weather.com/en-IN/india/news/news/2020-06-05-waterman-india-began-journey-towards-water-conservation |access-date=2022-11-14 |website=The Weather Channel |language=en-IN}}</ref> [[Great Green Wall (Africa)|Africa's Great Green Wall]] project was 15% complete in 2022. Modelling suggests that the completed wall may decrease average temperatures in the Sahel by as much as 1.5<sup>o</sup> Celsius, but may raise temperatures in the hottest areas. Rainfall would increase, even doubling in some areas.<ref>{{Cite web |date=2022-01-03 |title=Africa's 'Great Green Wall' could have far-reaching climate effects |url=https://www.sciencenews.org/article/africa-great-green-wall-trees-sahel-climate-change |access-date=2022-11-14 |language=en-US}}</ref>  China also has a 4,500&nbsp;km [[Great Green Wall (China)|Great Green Wall]] project planted to stop the advancing [[Gobi Desert]].
-Alpha Lo coins the term, bio-rain corridor to describe a connected areas of forest maintain the flow of atmospheric moisture flows and precipitation.<ref>{{Cite web |last=Lo |first=Alpha |title=Bio-Rain Corridor |url=https://climatewaterproject.substack.com/p/bio-rain-corridor |access-date=2022-11-14 |website=climatewaterproject.substack.com |language=en}}</ref> Continued deforestation poses the risk of disrupting flows of atmospheric moisture. In 2022 there were processes being developed to model the biotic pump mechanism to determine the impact of deforestation and the impacts of discontinuity of forest on atmospheric moisture flows.<ref>{{Cite journal |last1=Cantin |first1=Guillaume |last2=Verdière |first2=Nathalie |date=2020-08-01 |title=Networks of forest ecosystems: Mathematical modeling of their biotic pump mechanism and resilience to certain patch deforestation |journal=Ecological Complexity |language=en |volume=43 |pages=100850 |doi=10.1016/j.ecocom.2020.100850 |issn=1476-945X|doi-access=free }}</ref>
+The phrase bio-rain corridor describes a connected area of forest that maintains the flow of atmospheric moisture and precipitation.<ref>{{Cite web |last=Lo |first=Alpha |title=Bio-Rain Corridor |url=https://climatewaterproject.substack.com/p/bio-rain-corridor |access-date=2022-11-14 |website=climatewaterproject.substack.com |language=en}}</ref> Continued deforestation poses the risk of disrupting flows of atmospheric moisture. In 2022 there were processes being developed to model the biotic pump mechanism to determine the impact of deforestation and the impacts of discontinuity of forest on atmospheric moisture flows.<ref>{{Cite journal |last1=Cantin |first1=Guillaume |last2=Verdière |first2=Nathalie |date=2020-08-01 |title=Networks of forest ecosystems: Mathematical modeling of their biotic pump mechanism and resilience to certain patch deforestation |journal=Ecological Complexity |language=en |volume=43 |pages=100850 |doi=10.1016/j.ecocom.2020.100850 |issn=1476-945X |doi-access=free}}</ref>
-David Ellison and co-authors propose a need for greater understanding of these dynamics “Forest-driven water and energy cycles are poorly integrated into regional, national, continental and global decision-making on climate change adaptation, mitigation, land use and water management. This constrains humanity’s ability to protect our planet’s climate and life-sustaining functions.”<ref name=":3" />
+There is great need to further understand these dynamics “Forest-driven water and energy cycles are poorly integrated into regional, national, continental and global decision-making on [[climate change adaptation]], mitigation, land use and water management. This constrains humanity’s ability to protect our planet’s climate and life-sustaining functions.”<ref name=":32" />
+== See also ==
+* [[Biological pump]]
 == References ==
 {{Reflist}}
-== Further reading ==
-*{{Cite journal|last1=Makarieva|first1=Anastassia|last2=Gorshkov|first2=Victor|date=2010-01-01|title=The Biotic Pump: Condensation, atmospheric dynamics and climate|url=https://www.researchgate.net/publication/228528788|journal=International Journal of Water|volume=5|issue=4|pages=365–385|doi=10.1504/IJW.2010.038729|citeseerx=10.1.1.459.6577}}
-*{{Cite journal|date=2004-09-01|title=Hydrological functions of tropical forests: not seeing the soil for the trees?|journal=Agriculture, Ecosystems & Environment|volume=104|issue=1|pages=185–228|doi=10.1016/j.agee.2004.01.015|issn=0167-8809|last1=Bruijnzeel|first1=L.A.|s2cid=53510931 }}
-*{{Cite journal|last1=Makarieva|first1=A. M.|last2=Gorshkov|first2=V. G.|date=2007-03-27|title=Biotic pump of atmospheric moisture as driver of the hydrological cycle on land|journal=Hydrol. Earth Syst. Sci.|volume=11|issue=2|pages=1013–1033|doi=10.5194/hess-11-1013-2007|issn=1607-7938|url=https://hal.archives-ouvertes.fr/hal-00298762/file/hessd-3-2621-2006.pdf|doi-access=free}}
 [[Category:Atmospheric sciences]]