干旱区生态环境知识资源中心(Arid): Analysis of critical land degradation and development processes and their driving mechanism in the Heihe River Basin

Arid

DOI	10.1016/j.scitotenv.2020.137082
	Analysis of critical land degradation and development processes and their driving mechanism in the Heihe River Basin
	Shao, Yaqi 1; Jiang, Qun'; ou 1,2; Wang, Chunli 1; Wang, Meilin 1; Xiao, Ling 1; Qi, Yuanjing 1,2
通讯作者	Jiang, Qun&#39 ; ou ; Qi, Yuanjing
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2020
卷号	716
英文摘要	In arid regions, land development and degradation (LDD) is sustained by the undesirable land development human production and living, and climate change. Therefore, the understanding of LDD processes and their driving mechanism in the arid or semi-arid regions is significant to guarantee the sustainable development of ecological environment. This study explored the critical LDD processes in the Heihe River Basin (HRB) during 1990-2010 with the spatio-temporal evaluation of critical land use dynamics and its land quality changing trends. Then, the driving mechanism of cultivated land development process, grassland degradation process and water resource change process were analyzed by a simultaneous equations model which took the interaction of three processes into account. The results showed that the mutual transfers of cultivated land were primarily gathered in the middle reaches from 1990 to 2010. Its area grew by 13.5% and the average dynamic degree remained at 0.51%. The transfers between grassland and cultivated land, unused land were more remarkable, which led to the dedine of grassland quality and even grassland degradation. Water area maintained a dynamic balance with almost unchanged area, but its dynamic trend was initially increasing and then decreasing. However, the average degradation of land quality in the whole study area is continuously alleviated. These changes were mainly due to the interaction of the LDD processes above, as well as socio-economic and climate change. Among them, agricultural research investments could restrain the unordered expansion of cultivated land resource for a relatively short period of time. Meanwhile, the variable of whether it is the main grain producing county is the main driver of grassland and water resource degradation in this region. These conclusions will provide scientific references for ecological land restoration and land quality improvement in the HRB. (C) 2020 Elsevier B.V. All rights reserved.
英文关键词	Land degradation and development Driving mechanism Simultaneous equations model Environmental management Heihe River Basin
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000519987300007
WOS关键词	GRASSLAND DEGRADATION ; ECOSYSTEM SERVICES ; DESERTIFICATION
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	中国科学院地理科学与资源研究所 ; 北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315542
作者单位	1.Beijing Forestry Univ, Sch Soil & Water Conservat, Beijing 100083, Peoples R China; 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Shao, Yaqi,Jiang, Qun',ou,et al. Analysis of critical land degradation and development processes and their driving mechanism in the Heihe River Basin[J]. 中国科学院地理科学与资源研究所, 北京林业大学,2020,716.
APA	Shao, Yaqi.,Jiang, Qun'.,ou.,Wang, Chunli.,Wang, Meilin.,...&Qi, Yuanjing.(2020).Analysis of critical land degradation and development processes and their driving mechanism in the Heihe River Basin.SCIENCE OF THE TOTAL ENVIRONMENT,716.
MLA	Shao, Yaqi,et al."Analysis of critical land degradation and development processes and their driving mechanism in the Heihe River Basin".SCIENCE OF THE TOTAL ENVIRONMENT 716(2020).