Deforestation-induced warming over tropical mountain regions regulated by elevation
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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Deforestation-induced warming over tropical mountain regions regulated by elevation. / Zeng, Zhenzhong; Wang, Dashan; Yang, Long; Wu, Jie; Ziegler, Alan D.; Liu, Maofeng; Ciais, Philippe; Searchinger, Timothy D.; Yang, Zong-Liang; Chen, Deliang; Chen, Anping; Li, Laurent Z. X.; Piao, Shilong; Taylor, David; Cai, Xitian; Pan, Ming; Peng, Liqing; Lin, Peirong; Gower, Drew; Feng, Yu; Zheng, Chunmiao; Guan, Kaiyu; Lian, Xu; Wang, Tao; Wang, Lang; Jeong, Su-Jong; Wei, Zhongwang; Sheffield, Justin; Caylor, Kelly; Wood, Eric F.
I: Nature Geoscience, Bind 14, Nr. 1, 01.2021, s. 23-29.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Deforestation-induced warming over tropical mountain regions regulated by elevation
AU - Zeng, Zhenzhong
AU - Wang, Dashan
AU - Yang, Long
AU - Wu, Jie
AU - Ziegler, Alan D.
AU - Liu, Maofeng
AU - Ciais, Philippe
AU - Searchinger, Timothy D.
AU - Yang, Zong-Liang
AU - Chen, Deliang
AU - Chen, Anping
AU - Li, Laurent Z. X.
AU - Piao, Shilong
AU - Taylor, David
AU - Cai, Xitian
AU - Pan, Ming
AU - Peng, Liqing
AU - Lin, Peirong
AU - Gower, Drew
AU - Feng, Yu
AU - Zheng, Chunmiao
AU - Guan, Kaiyu
AU - Lian, Xu
AU - Wang, Tao
AU - Wang, Lang
AU - Jeong, Su-Jong
AU - Wei, Zhongwang
AU - Sheffield, Justin
AU - Caylor, Kelly
AU - Wood, Eric F.
PY - 2021/1
Y1 - 2021/1
N2 - Agriculture is expanding in tropical mountainous areas, yet its climatic effect is poorly understood. Here, we investigate how elevation regulates the biophysical climate impacts of deforestation over tropical mountainous areas by integrating satellite-observed forest cover changes into a high-resolution land-atmosphere coupled model. We show that recent forest conversion between 2000 and 2014 increased the regional warming by 0.022 +/- 0.002 degrees C in the Southeast Asian Massif, 0.010 +/- 0.007 degrees C in the Barisan Mountains (Maritime Southeast Asia), 0.042 +/- 0.010 degrees C in the Serra da Espinhaco (South America) and 0.047 +/- 0.008 degrees C in the Albertine Rift mountains (Africa) during the local dry season. The deforestation-driven local temperature anomaly can reach up to 2 degrees C where forest conversion is extensive. The warming from mountain deforestation depends on elevation, through the intertwined and opposing effects of increased albedo causing cooling and decreased evapotranspiration causing warming. As the elevation increases, the albedo effect increases in importance and the warming effect decreases, analogous to previously highlighted decreases of deforestation-induced warming with increasing latitude. As most new croplands are encroaching lands at low to moderate elevations, deforestation produces higher warming from suppressed evapotranspiration. Impacts of this additional warming on crop yields, land degradation and biodiversity of nearby intact ecosystems should be incorporated into future assessments.Deforestation causes elevation-dependent warming over tropical mountain regions, according to high-resolution climate simulations.
AB - Agriculture is expanding in tropical mountainous areas, yet its climatic effect is poorly understood. Here, we investigate how elevation regulates the biophysical climate impacts of deforestation over tropical mountainous areas by integrating satellite-observed forest cover changes into a high-resolution land-atmosphere coupled model. We show that recent forest conversion between 2000 and 2014 increased the regional warming by 0.022 +/- 0.002 degrees C in the Southeast Asian Massif, 0.010 +/- 0.007 degrees C in the Barisan Mountains (Maritime Southeast Asia), 0.042 +/- 0.010 degrees C in the Serra da Espinhaco (South America) and 0.047 +/- 0.008 degrees C in the Albertine Rift mountains (Africa) during the local dry season. The deforestation-driven local temperature anomaly can reach up to 2 degrees C where forest conversion is extensive. The warming from mountain deforestation depends on elevation, through the intertwined and opposing effects of increased albedo causing cooling and decreased evapotranspiration causing warming. As the elevation increases, the albedo effect increases in importance and the warming effect decreases, analogous to previously highlighted decreases of deforestation-induced warming with increasing latitude. As most new croplands are encroaching lands at low to moderate elevations, deforestation produces higher warming from suppressed evapotranspiration. Impacts of this additional warming on crop yields, land degradation and biodiversity of nearby intact ecosystems should be incorporated into future assessments.Deforestation causes elevation-dependent warming over tropical mountain regions, according to high-resolution climate simulations.
KW - BIODIVERSITY
KW - INCREASE
KW - RISK
KW - WRF
U2 - 10.1038/s41561-020-00666-0
DO - 10.1038/s41561-020-00666-0
M3 - Journal article
VL - 14
SP - 23
EP - 29
JO - Nature Geoscience
JF - Nature Geoscience
SN - 1752-0894
IS - 1
ER -
ID: 262740367