干旱区生态环境知识资源中心(Arid): Spatiotemporal variation of vegetation carbon stocks and its driving factors in the Urumqi River Basin

Arid

DOI	10.1016/j.ecolind.2024.111668
	Spatiotemporal variation of vegetation carbon stocks and its driving factors in the Urumqi River Basin
	Ablikim, Kamila; Yang, Han
通讯作者	Yang, H
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2024
卷号	159
英文摘要	Vegetation carbon (VC) is a key indicator of the carbon cycle in terrestrial ecosystems, and the study of spatial and temporal changes in VC stocks at the watershed scale can better reveal the impacts of natural and human activities on VC stocks in watersheds, which will help in monitoring watershed ecological environments and to realize sustainable development in watersheds and regions. To reveal the spatial and temporal changes of the VC stock in the Urumqi River Basin, a typical arid zone basin, from 2001 to 2020, the spatial and temporal distribution characteristics of multi-year VC stocks in the Urumqi River Basin were estimated based on the Pixel Information Expert Engine platform, with MODIS (MOD16A17) as the main data source, and by combining methods such as trend analysis and the Hurst index, and analyzing the impacts of different factors on the VC stock by using a geo-probe to quantify the effects of the different factors on the VC stock. The results were as follows: (1) VC in the Urumqi River Basin has continuously increased in the last 20 years, the carbon stock in the whole basin has decreased sequentially from upstream to downstream, and there is expected to be a general trend of continuous improvement in VC in the basin in the future. (2) In terms of land use, the VC stock was largest in forest, followed by grassland, cropland, construction land, unutilized land, and finally water bodies. The VC of forest fluctuated and changed between 0 and 180 t C & sdot;km- 2, while the carbon stocks of other land-use types fluctuated and changed between 0 and 90 t C & sdot;km- 2. (3) Regarding the effects of topographic changes in the Urumqi River Basin on VC stocks, elevation and slope had the most obvious influence, with the VC stock rising with elevation showing an increasing trend, and the carbon stock fluctuating on different slopes. On flat land and with a slope direction of north, northeast, east, or southeast, the carbon stock increased; while with a slope direction of south, southwest, west, or northwest, the carbon stock decreased. (4) The interaction of temperature, land-surface temperature, land-use and land-cover change, and topography in the Urumqi River Basin has had a pronounced effect on VC over the last 20 years. The results are a valuable reference for further understanding and research on VC stocks and their mechanisms of influence in arid zones more broadly, as well as being of great significance for vegetation conservation and restoration efforts in the Urumqi River Basin specifically.
英文关键词	Vegetation carbon stocks Land -use change Topographic factors OPGD
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:001177808800001
WOS关键词	IMPACT
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403378
推荐引用方式 GB/T 7714	Ablikim, Kamila,Yang, Han. Spatiotemporal variation of vegetation carbon stocks and its driving factors in the Urumqi River Basin[J],2024,159.
APA	Ablikim, Kamila,&Yang, Han.(2024).Spatiotemporal variation of vegetation carbon stocks and its driving factors in the Urumqi River Basin.ECOLOGICAL INDICATORS,159.
MLA	Ablikim, Kamila,et al."Spatiotemporal variation of vegetation carbon stocks and its driving factors in the Urumqi River Basin".ECOLOGICAL INDICATORS 159(2024).