干旱区生态环境知识资源中心(Arid): Ecological Responses to Climate Change and Human Activities in the Arid and Semi-Arid Regions of Xinjiang in China

Arid

DOI	10.3390/rs14163911
	Ecological Responses to Climate Change and Human Activities in the Arid and Semi-Arid Regions of Xinjiang in China
	Zhou, Yanqing; Li, Yaoming; Li, Wei; Li, Feng; Xin, Qinchuan
通讯作者	Xin, QC
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2022
卷号	14 期号:16
英文摘要	Understanding the impacts and extent of both climate change and human activities on ecosystems is crucial to sustainable development. With low anti-interference ability, arid and semi-arid ecosystems are particularly sensitive to disturbances from both climate change and human activities. We investigated how and to what extent climate variation and human activities influenced major indicators that are related to ecosystem functions and conditions in the past decades in Xinjiang, a typical arid and semi-arid region in China. We analyzed the changing trends of evapotranspiration (ET), gross primary productivity (GPP) and leaf area index (LAI) derived from the Moderate-Resolution Imaging Spectroradiometer (MODIS) satellite product and the Breathing Earth System Simulator (BESS) model in Xinjiang for different climate zones. We separated and quantified the contributions of climate forcing and human activities on the trends of the studied ecosystem indicators using the residual analysis method for different climate zones in Xinjiang. The results show that GPP and LAI increased and ET decreased from 2001 to 2015 in Xinjiang. Factors that dominate the changes in ecosystem indicators vary considerably across different climate zones. Precipitation plays a positive role in impacting vegetation indicators in arid and hyper-arid zones and temperature has a negative correlation with both GPP and LAI in hyper-arid zones in Xinjiang. Results based on residual analysis indicate that human activities could account for over 72% of variation in the changes in each ecosystem indicator. Human activities have large impacts on each vegetation indicator change in hyper-arid and arid zones and their relative contribution has a mean value of 79%. This study quantifies the roles of climate forcing and human activities in the changes in ecosystem indicators across different climate zones, suggesting that human activities largely influence ecosystem processes in the arid and semi-arid regions of Xinjiang in China.
英文关键词	ecosystem indicators climate change human activities climate zones
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000845336100001
WOS关键词	NET PRIMARY PRODUCTIVITY ; SPATIOTEMPORAL ANALYSIS ; VEGETATION COVER ; RELATIVE ROLES ; CARBON ; RIVER ; EVAPOTRANSPIRATION ; TRENDS ; DESERTIFICATION ; GRASSLANDS
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394184
推荐引用方式 GB/T 7714	Zhou, Yanqing,Li, Yaoming,Li, Wei,et al. Ecological Responses to Climate Change and Human Activities in the Arid and Semi-Arid Regions of Xinjiang in China[J],2022,14(16).
APA	Zhou, Yanqing,Li, Yaoming,Li, Wei,Li, Feng,&Xin, Qinchuan.(2022).Ecological Responses to Climate Change and Human Activities in the Arid and Semi-Arid Regions of Xinjiang in China.REMOTE SENSING,14(16).
MLA	Zhou, Yanqing,et al."Ecological Responses to Climate Change and Human Activities in the Arid and Semi-Arid Regions of Xinjiang in China".REMOTE SENSING 14.16(2022).