气候变化领域集成服务门户(CCPortal): Spatial-temporal changes and driving forces of aeolian desertification of grassland in the Sanjiangyuan region from 1975 to 2015 based on the analysis of Landsat images

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DOI	10.1007/s10661-020-08763-8
	Spatial-temporal changes and driving forces of aeolian desertification of grassland in the Sanjiangyuan region from 1975 to 2015 based on the analysis of Landsat images
	Zhai, Xiaohui; Yan, Changzhen; Xing, Xuegang; Jia, Haowei; Wei, Xiaoxu; Feng, Kun
通讯作者	Yan, CZ (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, 320 West Donggang Rd, Lanzhou 730000, Gansu, Peoples R China.
发表日期	2021
ISSN	0167-6369
EISSN	1573-2959
卷号	193 期号:1
英文摘要	The Sanjiangyuan region is the source of the Yangtze, Yellow, and Lantsang rivers and is an important water conservation area in China. Due to the high altitude and cold climate in the region, the vegetation ecosystem has become very sensitive to environmental changes. In recent decades, due to the impact of climate change and human activities, the grassland degradation and desertification in this region have become very serious. In order to study the changes in aeolian desertification of grassland (ADG) in Sanjiangyuan, the Landsat images and GIS technology were used to monitor the dynamics of ADG from 1975 to 2015, and the driving factors behind this were analyzed. The results revealed that from 1975 to 2000, the area of ADG increased by 2855.8 km(2), and the growth rate was 114.23 km(2) a(-1). In contrast, the ADG was restored from 2000 to 2015, with a decrease of 1286.54 km(2) and a rate of 85.77 km(2) a(-1). The main reasons for the expansion of ADG in the early stage were the rising temperature, the fluctuation of precipitation and wind speed, and the increase in intensified human activities. The main reasons for the reversal of ADG in the later stage were the warming and humidification of the climate, the reduction in wind speed, and the reduction in human activities and restoration of grassland caused by the ecological protection project.
英文关键词	Sanjiangyuan region; Aeolian desertification of grassland; Remote sensing monitoring; Ecological restoration project
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000600215800001
来源期刊	ENVIRONMENTAL MONITORING AND ASSESSMENT
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254420
作者单位	[Zhai, Xiaohui; Yan, Changzhen; Xing, Xuegang; Jia, Haowei; Feng, Kun] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, 320 West Donggang Rd, Lanzhou 730000, Gansu, Peoples R China; [Zhai, Xiaohui; Xing, Xuegang; Jia, Haowei; Feng, Kun] Univ Chinese Acad Sci, Beijing, Peoples R China; [Wei, Xiaoxu] Northwest Normal Univ, Coll Social Dev & Publ Adm, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Zhai, Xiaohui,Yan, Changzhen,Xing, Xuegang,et al. Spatial-temporal changes and driving forces of aeolian desertification of grassland in the Sanjiangyuan region from 1975 to 2015 based on the analysis of Landsat images[J]. 中国科学院西北生态环境资源研究院,2021,193(1).
APA	Zhai, Xiaohui,Yan, Changzhen,Xing, Xuegang,Jia, Haowei,Wei, Xiaoxu,&Feng, Kun.(2021).Spatial-temporal changes and driving forces of aeolian desertification of grassland in the Sanjiangyuan region from 1975 to 2015 based on the analysis of Landsat images.ENVIRONMENTAL MONITORING AND ASSESSMENT,193(1).
MLA	Zhai, Xiaohui,et al."Spatial-temporal changes and driving forces of aeolian desertification of grassland in the Sanjiangyuan region from 1975 to 2015 based on the analysis of Landsat images".ENVIRONMENTAL MONITORING AND ASSESSMENT 193.1(2021).