干旱区生态环境知识资源中心(Arid): Spatial and temporal patterns and risk assessment of carbon source and sink balance of land use in watersheds of arid zones in China- a case study of Bosten Lake basin

Arid

DOI	10.1016/j.ecolind.2023.111308
	Spatial and temporal patterns and risk assessment of carbon source and sink balance of land use in watersheds of arid zones in China- a case study of Bosten Lake basin
	Han, Fuqiang; Kasimu, Alimujiang; Wei, Bohao; Zhang, Xueling; Aizizi, Yimuranzi; Chen, Jiazhen
通讯作者	Kasimu, A
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2023
卷号	157
英文摘要	In recent years, Northwest China has experienced rapid land-use transformation and urbanization. Land-use carbon emissions associated with human activities are an important cause of climate change. However, the carbon sources and sinks associated with land-use change in arid zone watersheds need further study. This study focuses on Bosten Lake in Northwest China and employs a combination of top-down and bottom-up methods to assess the spatial and temporal evolution of carbon source and sink balance under land use changes and identify areas with high carbon emission risks. The key discoveries are as follows: (1) The land use category shows a pattern of three decreases and three increases. Grassland, unused land, and water area have decreased, while construction land, arable land, and forest land have increased. Cultivated land shows significant expansion, with an increase of 2375.71 km2. The overall distribution of land use intensities breaks through traditional bound-aries, resulting in more dispersed reorganization of land use types. (2) Carbon emissions originating from land use category exhibit an upward trend, with a net increase of 1413.38 x 104 t. Construction land emerges as the primary carbon source, while arable land experiences the highest rate of carbon source migration. Grassland serves as the primary carbon sink migration area. Transformations and rapid expansions of arable land contribute significantly to changes in carbon balance. (3) Carbon emission risks are prominent in agricultural and pastoral areas as well as urban core regions, gradually decreasing in surrounding areas with a single-core staggered distribution pattern. The carbon source exceeds the carbon absorption, indicating a significant imbalance in carbon balance. These findings carry significant implications for the promotion of low-carbon and high-quality development in the Bosten Lake basin and the optimization of national territorial planning.
英文关键词	Carbon source/sink balance LUCC Carbon emission risk Spatial and temporal evolution Bosten Lake Basin
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:001125741500001
WOS关键词	DIOXIDE EMISSIONS ; DYNAMICS ; CO2
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/2XILL650/395981
推荐引用方式 GB/T 7714	Han, Fuqiang,Kasimu, Alimujiang,Wei, Bohao,et al. Spatial and temporal patterns and risk assessment of carbon source and sink balance of land use in watersheds of arid zones in China- a case study of Bosten Lake basin[J],2023,157.
APA	Han, Fuqiang,Kasimu, Alimujiang,Wei, Bohao,Zhang, Xueling,Aizizi, Yimuranzi,&Chen, Jiazhen.(2023).Spatial and temporal patterns and risk assessment of carbon source and sink balance of land use in watersheds of arid zones in China- a case study of Bosten Lake basin.ECOLOGICAL INDICATORS,157.
MLA	Han, Fuqiang,et al."Spatial and temporal patterns and risk assessment of carbon source and sink balance of land use in watersheds of arid zones in China- a case study of Bosten Lake basin".ECOLOGICAL INDICATORS 157(2023).