干旱区生态环境知识资源中心(Arid): Variance of vegetation coverage and its sensitivity to climatic factors in the Irtysh River basin

Arid

DOI	10.7717/peerj.11334
	Variance of vegetation coverage and its sensitivity to climatic factors in the Irtysh River basin
	Han, Feifei; Yan, Junjie; Ling, Hong-bo
通讯作者	Ling, HB (corresponding author), Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi, Xinjiang, Peoples R China. ; Yan, JJ (corresponding author), Yili Normal Univ, Inst Resources & Ecol, Yining, Xinjiang, Peoples R China.
来源期刊	PEERJ
ISSN	2167-8359
出版年	2021
卷号	9
英文摘要	Background. Climate change is an important factor driving vegetation changes in arid areas. Identifying the sensitivity of vegetation to climate variability is crucial for developing sustainable ecosystem management strategies. The Irtysh River is located in the westerly partition of China, and its vegetation cover is more sensitive to climate change. However, previous studies rarely studied the changes in the vegetation coverage of the Irtysh River and its sensitivity to climate factors from a spatiotemporal perspective. Methods. We adopted a vegetation sensitivity index based on remote sensing datasets of high temporal resolution to study the sensitivity of vegetation to climatic factors in the Irtysh River basin, then reveal the driving mechanism of vegetation cover change. Results. The results show that 88.09% of vegetated pixels show an increasing trend in vegetation coverage, and the sensitivity of vegetation to climate change presents spatial heterogeneity. Sensitivity of vegetation increases with the increase of coverage. Temperate steppe in the northern mountain and herbaceous swamp and broadleaf forest in the river valley, where the normalized difference vegetation index is the highest, show the strongest sensitivity, while the desert steppe in the northern plain, where the NDVI is the lowest, shows the strongest memory effect (or the strongest resilience). Relatively, the northern part of this area is more affected by a combination of precipitation and temperature, while the southern plains dominated by desert steppe are more sensitive to precipitation. The central river valley dominated by herbaceous swamp is more sensitive to temperature-vegetation dryness index. This study underscores that the sensitivity of vegetation cover to climate change is spatially differentiated at the regional scale.
英文关键词	Irtysh River basin Vegetation coverage Vegetation sensitivity index Memory effect Climatic factors
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000647034500005
WOS关键词	LAND-SURFACE TEMPERATURE ; TIME-SERIES ; NDVI ; RESPONSES ; RESILIENCE ; CHINA ; MODIS ; PRODUCTIVITY ; VARIABILITY ; ECOSYSTEMS
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351295
作者单位	[Han, Feifei; Ling, Hong-bo] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi, Xinjiang, Peoples R China; [Han, Feifei] Shihezi Univ, Coll Water & Architectural Engn, Shihezi, Xinjiang, Peoples R China; [Yan, Junjie] Yili Normal Univ, Inst Resources & Ecol, Yining, Xinjiang, Peoples R China
推荐引用方式 GB/T 7714	Han, Feifei,Yan, Junjie,Ling, Hong-bo. Variance of vegetation coverage and its sensitivity to climatic factors in the Irtysh River basin[J]. 中国科学院新疆生态与地理研究所,2021,9.
APA	Han, Feifei,Yan, Junjie,&Ling, Hong-bo.(2021).Variance of vegetation coverage and its sensitivity to climatic factors in the Irtysh River basin.PEERJ,9.
MLA	Han, Feifei,et al."Variance of vegetation coverage and its sensitivity to climatic factors in the Irtysh River basin".PEERJ 9(2021).