干旱区生态环境知识资源中心(Arid): Dynamic of land use, landscape, and their impact on ecological quality in the northern sand-prevention belt of China

Arid

DOI	10.1016/j.jenvman.2022.115351
	Dynamic of land use, landscape, and their impact on ecological quality in the northern sand-prevention belt of China
	Chen, Ang; Yang, Xiuchun; Guo, Jian; Zhang, Min; Xing, Xiaoyu; Yang, Dong; Xu, Bin; Jiang, Liwei
通讯作者	Yang, XC
来源期刊	JOURNAL OF ENVIRONMENTAL MANAGEMENT
ISSN	0301-4797
EISSN	1095-8630
出版年	2022
卷号	317
英文摘要	Changes in land use and landscapes have a direct impact on the regional eco-environment. It is of great importance to understand the change pattern of land use, landscapes, and their mechanism on the ecological quality, especially ecologically fragile areas. The northern sand-prevention belt (NSPB) is an important ecologically fragile area in China, which has a large influence on the ecological security of the entire country. Based on the land use data of the NSPB in 2000, 2010, and 2018, we studied the spatio-temporal characteristics of land-use change and change in landscape patterns. The ecological quality represented by the remote sensing based desertification index (RSDI) was calculated using satellite images. The effects of land use and landscape patterns on RSDI were analyzed by geographic detector and geographically weighted regression. Important results include the following: (1) Land-use change in the study area was high during 2000-2010 but slower in 2010-2018. Grassland was the largest land-use type in the NSPB, and varied greatly in terms of total change and spatial location. The major change was the conversion between dense and moderate grass, with 64,860 km(2) of dense grass turning into moderate grass, and 48,505 km(2) changing the other way. (2) Among the four landscape metrics, patch density, area-weighted mean fractal dimension, and edge density increased, whereas the aggregation index decreased, which indicated that the landscape was developing towards heterogeneity, fragmentation, complexity, and aggregation. Spatially, the landscape metrics presented a strip distribution in the east of the NSPB. (3) The effects of various land-use types on ecological quality, from high to low, were unused land, woodland, dense grass, cropland, moderate grass, built-up land, sparse grass, and waterbody. The areas where the ecological quality was greatly affected by the landscape patterns were concentrated in the agro-pastoral ecotone and the forest-steppe ecotone. The results of this study reveal the trends of land use and landscape patterns in the NSPB over 18 years and can help to understand their mechanism on ecological quality, which is of significance for the management of this area.
英文关键词	The northern sand-prevention belt (NSPB) Land-use change Landscape patterns Ecological quality Geographic detector (GD) Geographically weighted regression (GWR)
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000809971500004
WOS关键词	DRIVING FORCES ; PATTERNS ; INDICATORS ; EVOLUTION ; ECOSYSTEM ; METRICS ; POPULATION ; EXPANSION ; FORESTS ; BALANCE
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/2XILL650/393415
推荐引用方式 GB/T 7714	Chen, Ang,Yang, Xiuchun,Guo, Jian,et al. Dynamic of land use, landscape, and their impact on ecological quality in the northern sand-prevention belt of China[J],2022,317.
APA	Chen, Ang.,Yang, Xiuchun.,Guo, Jian.,Zhang, Min.,Xing, Xiaoyu.,...&Jiang, Liwei.(2022).Dynamic of land use, landscape, and their impact on ecological quality in the northern sand-prevention belt of China.JOURNAL OF ENVIRONMENTAL MANAGEMENT,317.
MLA	Chen, Ang,et al."Dynamic of land use, landscape, and their impact on ecological quality in the northern sand-prevention belt of China".JOURNAL OF ENVIRONMENTAL MANAGEMENT 317(2022).