干旱区生态环境知识资源中心(Arid): Distinguishing natural and anthropogenic contributions to biological soil crust distribution in China's drylands

Arid

DOI	10.1016/j.scitotenv.2023.168009
	Distinguishing natural and anthropogenic contributions to biological soil crust distribution in China's drylands
	Wang, Zhengdong; Wu, Bingfang; Ma, Zonghan; Zhang, Miao; Zeng, Hongwei
通讯作者	Wu, BF
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2024
卷号	907
英文摘要	Desertification caused by natural factors and human activities seriously threatens dryland biological communities. However, the impact of these factors on non-vascular plants in drylands has not been fully documented. This study proposed a framework to distinguish the natural and anthropogenic contributions to the distribution of the biological soil crust (BSC) coverage. The 20 model-simulated environmental datasets, including climate, soil characteristics and terrain, were selected to explore the internal relationship between these environmental drivers and BSC coverage. Random forest classification and regression models were developed to calculate the BSC coverage in the drylands of China under natural conditions. By subtracting the predicted natural BSC coverage from the observed BSC coverage, the spatial distribution of changes in BSC coverage attributed to human activities was mapped. The results showed that in the limited vegetation areas of China's drylands, human activities had a positive impact on BSC coverage in only 11.3 % of the regions while having a negative effect on 25.4 % of the regions. Moreover, human activities led to a 33 % reduction in BSC coverage in these regions. The positive impacts of large-scale ecological restoration projects on BSC coverage in the drylands of China were limited due to land use changes caused by human economic activities. This framework provides support for assessing regional variations in anthropogenic impacts on dryland BSC communities and contributes to the development of appropriate dryland management policies.
英文关键词	BSC coverage Dryland management Anthropogenic impacts Random forest
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001102485000001
WOS关键词	LAND-USE CHANGE ; SPATIAL-DISTRIBUTION ; PRECIPITATION ; DESERTIFICATION ; COMMUNITIES ; TEMPERATURE ; PATTERNS ; INDEX
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405428
推荐引用方式 GB/T 7714	Wang, Zhengdong,Wu, Bingfang,Ma, Zonghan,et al. Distinguishing natural and anthropogenic contributions to biological soil crust distribution in China's drylands[J],2024,907.
APA	Wang, Zhengdong,Wu, Bingfang,Ma, Zonghan,Zhang, Miao,&Zeng, Hongwei.(2024).Distinguishing natural and anthropogenic contributions to biological soil crust distribution in China's drylands.SCIENCE OF THE TOTAL ENVIRONMENT,907.
MLA	Wang, Zhengdong,et al."Distinguishing natural and anthropogenic contributions to biological soil crust distribution in China's drylands".SCIENCE OF THE TOTAL ENVIRONMENT 907(2024).