Vegetation response to climate zone dynamics and its impacts on surface soil water content and albedo in China

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http://hdl.handle.net/10138/332838

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Guan , Y , Lu , H , Yin , C , Xue , Y , Jiang , Y , Kang , Y , He , L & Heiskanen , J 2020 , ' Vegetation response to climate zone dynamics and its impacts on surface soil water content and albedo in China ' , The Science of the Total Environment , vol. 747 , 141537 . https://doi.org/10.1016/j.scitotenv.2020.141537

Title: Vegetation response to climate zone dynamics and its impacts on surface soil water content and albedo in China
Author: Guan, Yanlong; Lu, Hongwei; Yin, Chuang; Xue, Yuxuan; Jiang, Yelin; Kang, Yu; He, Li; Heiskanen, Janne
Contributor: University of Helsinki, Institute for Atmospheric and Earth System Research (INAR)
Date: 2020-12-10
Language: eng
Number of pages: 13
Belongs to series: The Science of the Total Environment
ISSN: 0048-9697
URI: http://hdl.handle.net/10138/332838
Abstract: Extensive research has focused on the response of vegetation to climate change, including potential mechanisms and resulting impacts. Although many studies have explored the relationship between vegetation and climate change in China, research on spatiotemporal distribution changes of climate regimes using natural vegetation as an indicator is still lacking. Further, limited information is available on the response of vegetation to shifts in China's regional climatic zones. In this study, we applied Mann-Kendall, and correlation analysis to examine the variabilities in temperature, precipitation, surface soil water, normalised difference vegetation index (NDVI), and albedo in China from 1982 to 2012. Our results indicate significant shifts in the distribution of Koppen-Geiger climate classes in China from 12.08% to 18.98% between 1983 and 2012 at a significance level of 0.05 (MK). The percentage areas in the arid and continental zones expanded at a rate of 0.004%/y and 0.12%/y, respectively, while the percentage area in the temperate and alpine zones decreased by -0.05%/y and - 0.07%/y. Sensitivity fitting results between simulated and observed changes identified temperature to be a dominant control on the dynamics of temperate (r(2)= 0.98) and alpine (r(2)= 0.968) zones, while precipitation was the dominant control on the changes of arid (r(2) = 0.856) and continental (r(2) = 0.815) zones. The response of the NDVI to albedo infers a more pronounced radiative response in temperate (r = -0.82, p
Subject: Albedo
CLASSIFICATION
Climate zones
ENERGY-BALANCE
FEEDBACKS
FUTURE
MECHANISMS
NDVI
Precipitation
REGIONS
SHIFTS
TEMPERATURE
TIBETAN PLATEAU
Temperature
WORLD
1172 Environmental sciences
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