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Desertification in the Mu Us Sandy Land in China:Response to climate change and human activity from 2000 to 2020

Geography and Sustainability 2022年第2期3卷 177-189页

作者： Xin Wang Jinling Song Zhiqiang Xiao Jing Wang Fangze Hu State Key Laboratory of Remote Sensing Science Jointly Sponsored by Beijing Normal University and Institute of Remote Sensing and Digital Earth of Chinese Academy of SciencesBeijing 100875China Beijing Engineering Research Center for Global Land Remote Sensing Products Institute of Remote Sensing Science and EngineeringFaculty of Geographical ScienceBeijing Normal UniversityBeijing 100875China

China is a country largely affected by *** main purpose of this article is to analyze interannual and seasonal changes in fractional vegetation cover(FVC)in the Mu Us Sandy Land(MUSL).It uses fused remote sensing data to quantitatively analyze the response of FVC to climate change and human *** results showed that desertification in the MUSL had improved over the past 20 *** V desertification decreased from more than 60%in 2000 to about 15%in *** some years,degradation appeared to be affected by climate factors and human activity,especially in the northwestern portion of the study *** FVC in summer was slightly higher than that in autumn and far higher than recorded in spring and ***,the northwestern and central parts of the study area were unstable,with high coefficients of *** gradually increased from northwest to southeast,and areas with the fastest increase in FVC were concentrated along the eastern and southern edges of the study *** correlations between FVC and precipitation and dryness were slightly pos-itive,but the correlation between FVC and temperature showed regional *** increase of population density is not a key factor limiting the growth of vegetation;the policy of“grazing prohibition,grazing rest,and rotational grazing”has allowed the restoration of vegetation;and afforestation is an effective way to promote the increase in FVC.

关键词： Mu Us Sandy Land(MUSL) Mann-Kendall test starfm model

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