Ecological Responses to Climate Change and Human Activities in the Arid and Semi-Arid Regions of Xinjiang in China

Understanding the impacts and extent of both climate change human activities on ecosystems is crucial to sustainable development. With low anti-interference ability, arid semi-arid are particularly sensitive disturbances from activities. We investigated how what variation influenced major indicators that related ecosystem functions conditions in past decades Xinjiang, a typical region China. analyzed changing trends evapotranspiration (ET), gross primary productivity (GPP) leaf area index (LAI) derived Moderate-Resolution Imaging Spectroradiometer (MODIS) satellite product Breathing Earth System Simulator (BESS) model Xinjiang for different zones. separated quantified contributions forcing studied using residual analysis method zones Xinjiang. The results show GPP LAI increased ET decreased 2001 2015 Factors dominate changes vary considerably across Precipitation plays positive role impacting vegetation hyper-arid temperature has negative correlation with Results based indicate could account over 72% each indicator. Human have large indicator their relative contribution mean value 79%. This study quantifies roles zones, suggesting largely influence processes regions