Shifting Contribution of Climatic Constraints on Evapotranspiration in the Boreal Forest
Abstract The global evapotranspiration (ET) shows an increasing trend with global warming in recent decades, while ET variation in different regions is still uncertain. Boreal forest ecosystem, as one of the most sensitive regions to climate change, are still poorly understood due to the sparse obse...
Published in: | Earth's Future |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2021
|
Subjects: | |
Online Access: | https://doi.org/10.1029/2021EF002104 https://doaj.org/article/fe1524d67cbe48e9b25190a73efe7afe |
id |
ftdoajarticles:oai:doaj.org/article:fe1524d67cbe48e9b25190a73efe7afe |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:fe1524d67cbe48e9b25190a73efe7afe 2023-05-15T18:48:59+02:00 Shifting Contribution of Climatic Constraints on Evapotranspiration in the Boreal Forest Tongxin Wang Hongyan Zhang Jianjun Zhao Xiaoyi Guo Tao Xiong Rihan Wu 2021-08-01T00:00:00Z https://doi.org/10.1029/2021EF002104 https://doaj.org/article/fe1524d67cbe48e9b25190a73efe7afe EN eng Wiley https://doi.org/10.1029/2021EF002104 https://doaj.org/toc/2328-4277 2328-4277 doi:10.1029/2021EF002104 https://doaj.org/article/fe1524d67cbe48e9b25190a73efe7afe Earth's Future, Vol 9, Iss 8, Pp n/a-n/a (2021) climate change evapotranspiration boreal forest PT‐JPL model Environmental sciences GE1-350 Ecology QH540-549.5 article 2021 ftdoajarticles https://doi.org/10.1029/2021EF002104 2022-12-31T00:56:29Z Abstract The global evapotranspiration (ET) shows an increasing trend with global warming in recent decades, while ET variation in different regions is still uncertain. Boreal forest ecosystem, as one of the most sensitive regions to climate change, are still poorly understood due to the sparse observation and the changing of ET in the boreal forest has been covered up for lower values compared to lower‐latitude regions. Based on the PT‐JPL model, we estimated the ET in the boreal forest during 1982–2015. The annual ET showed an increasing trend (0.5073 mm year−1). Seventy percentage of the boreal forest area is increasing which mainly occurred in Central Canada, Alaska, Central Siberia and Northern Europe, while 24% is decreasing, which occurred in the southern Siberia, Northern Mongolia and Northern Canada. The quantification of basic climatic factors shows that atmospheric demand is the main factor with an increasing trend which is accordance with the (a) increasing temperature; (b) annual precipitation is increasing providing increasing water supply for boreal forest. Factorial experiments were also conducted and showed that the climatic constraints that contribute mainly to ET have gradually shifted from net radiation to moisture restriction in the boreal forest. The moisture control tendency indicated that ET in the boreal forest was gradually controlled by humidity rather than energy, suggesting a limited water supply and an intensifying water cycle in the boreal forest. Article in Journal/Newspaper Alaska Siberia Directory of Open Access Journals: DOAJ Articles Canada Earth's Future 9 8 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
climate change evapotranspiration boreal forest PT‐JPL model Environmental sciences GE1-350 Ecology QH540-549.5 |
spellingShingle |
climate change evapotranspiration boreal forest PT‐JPL model Environmental sciences GE1-350 Ecology QH540-549.5 Tongxin Wang Hongyan Zhang Jianjun Zhao Xiaoyi Guo Tao Xiong Rihan Wu Shifting Contribution of Climatic Constraints on Evapotranspiration in the Boreal Forest |
topic_facet |
climate change evapotranspiration boreal forest PT‐JPL model Environmental sciences GE1-350 Ecology QH540-549.5 |
description |
Abstract The global evapotranspiration (ET) shows an increasing trend with global warming in recent decades, while ET variation in different regions is still uncertain. Boreal forest ecosystem, as one of the most sensitive regions to climate change, are still poorly understood due to the sparse observation and the changing of ET in the boreal forest has been covered up for lower values compared to lower‐latitude regions. Based on the PT‐JPL model, we estimated the ET in the boreal forest during 1982–2015. The annual ET showed an increasing trend (0.5073 mm year−1). Seventy percentage of the boreal forest area is increasing which mainly occurred in Central Canada, Alaska, Central Siberia and Northern Europe, while 24% is decreasing, which occurred in the southern Siberia, Northern Mongolia and Northern Canada. The quantification of basic climatic factors shows that atmospheric demand is the main factor with an increasing trend which is accordance with the (a) increasing temperature; (b) annual precipitation is increasing providing increasing water supply for boreal forest. Factorial experiments were also conducted and showed that the climatic constraints that contribute mainly to ET have gradually shifted from net radiation to moisture restriction in the boreal forest. The moisture control tendency indicated that ET in the boreal forest was gradually controlled by humidity rather than energy, suggesting a limited water supply and an intensifying water cycle in the boreal forest. |
format |
Article in Journal/Newspaper |
author |
Tongxin Wang Hongyan Zhang Jianjun Zhao Xiaoyi Guo Tao Xiong Rihan Wu |
author_facet |
Tongxin Wang Hongyan Zhang Jianjun Zhao Xiaoyi Guo Tao Xiong Rihan Wu |
author_sort |
Tongxin Wang |
title |
Shifting Contribution of Climatic Constraints on Evapotranspiration in the Boreal Forest |
title_short |
Shifting Contribution of Climatic Constraints on Evapotranspiration in the Boreal Forest |
title_full |
Shifting Contribution of Climatic Constraints on Evapotranspiration in the Boreal Forest |
title_fullStr |
Shifting Contribution of Climatic Constraints on Evapotranspiration in the Boreal Forest |
title_full_unstemmed |
Shifting Contribution of Climatic Constraints on Evapotranspiration in the Boreal Forest |
title_sort |
shifting contribution of climatic constraints on evapotranspiration in the boreal forest |
publisher |
Wiley |
publishDate |
2021 |
url |
https://doi.org/10.1029/2021EF002104 https://doaj.org/article/fe1524d67cbe48e9b25190a73efe7afe |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Alaska Siberia |
genre_facet |
Alaska Siberia |
op_source |
Earth's Future, Vol 9, Iss 8, Pp n/a-n/a (2021) |
op_relation |
https://doi.org/10.1029/2021EF002104 https://doaj.org/toc/2328-4277 2328-4277 doi:10.1029/2021EF002104 https://doaj.org/article/fe1524d67cbe48e9b25190a73efe7afe |
op_doi |
https://doi.org/10.1029/2021EF002104 |
container_title |
Earth's Future |
container_volume |
9 |
container_issue |
8 |
_version_ |
1766242399185534976 |