干旱区生态环境知识资源中心(Arid): A remote sensing monitoring method for alpine grasslands desertification in the eastern Qinghai-Tibetan Plateau

Arid

DOI	10.1007/s11629-020-5986-6
	A remote sensing monitoring method for alpine grasslands desertification in the eastern Qinghai-Tibetan Plateau
	Qian, Kuang 1,2; Yuan Quan-zhi 1,2; Han Ji-chong 3; Leng Rong 1,2; Wang Yu-shuang 1,2; Zhu Ke-hong 4; Lin Shuo 5; Ren Ping 1,2
通讯作者	Yuan Quan-zhi
来源期刊	JOURNAL OF MOUNTAIN SCIENCE
ISSN	1672-6316
EISSN	1993-0321
出版年	2020
卷号	17 期号:6 页码:1423-1437
英文摘要	Alpine grassland is the typical vegetation in the eastern Qinghai-Tibetan Plateau, which has important ecological service functions, and also supports the development of alpine stock farming. In recent years, under both the natural and human disturbance, alpine grasslands in this area have appeared to different degrees of desertification. A diagnosis of the desertification degree serves as the basis for grassland ecological restoration. This study constructs a comprehensive index based on remote sensing called alpine grassland desertification index (AGDI) to monitor the areas and degree of desertification. The most relevant indicators of desertification, namely, vegetation fraction, aboveground biomass, soil moisture, and land surface temperature, were selected to establish AGDI. The geographical detector is used to reselect and assess these indicators. The results show that the overall verification accuracy of AGDI is 82.05%. In particular, the accuracy of identifying severe desertification is the highest. Our study confirms that the desertification of alpine grasslands in the eastern Qinghai-Tibetan Plateau is characterized by fragmentation. Thus, Landsat-8 OLI data with a spatial resolution of 30 m is more suitable than MODIS data for alpine grasslands desertification monitoring. The research results can provide a methodological reference for monitoring desertification of alpine grasslands and other grassland regions in the world.
英文关键词	Desertification monitoring Alpine grassland desertification index (AGDI) Geographical detector Zoige county
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000538038700011
WOS关键词	QUANTITATIVE ASSESSMENT ; RISK-ASSESSMENT ; SOIL-MOISTURE ; SOURCE REGION ; NORTH CHINA ; DEGRADATION ; CLASSIFICATION ; INDICATORS ; PRODUCTIVITY ; INDEXES
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	北京师范大学 ; 清华大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/318702
作者单位	1.Sichuan Normal Univ, Key Lab Land Resources Evaluat & Monitoring South, Minist Educ, Chengdu 610068, Peoples R China; 2.Sichuan Normal Univ, Inst Geog & Resources Sci, Chengdu 610068, Peoples R China; 3.Beijing Normal Univ, Key Lab Environm Change & Nat Disaster, Fac Geog Sci,Acad Disaster Reduct & Emergency Man, MOE,State Key Lab Earth Surface Proc & Resources, Beijing 100875, Peoples R China; 4.Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China; 5.Sichuan Agr Univ, Coll Resources, Chengdu 611130, Peoples R China
推荐引用方式 GB/T 7714	Qian, Kuang,Yuan Quan-zhi,Han Ji-chong,et al. A remote sensing monitoring method for alpine grasslands desertification in the eastern Qinghai-Tibetan Plateau[J]. 北京师范大学, 清华大学,2020,17(6):1423-1437.
APA	Qian, Kuang.,Yuan Quan-zhi.,Han Ji-chong.,Leng Rong.,Wang Yu-shuang.,...&Ren Ping.(2020).A remote sensing monitoring method for alpine grasslands desertification in the eastern Qinghai-Tibetan Plateau.JOURNAL OF MOUNTAIN SCIENCE,17(6),1423-1437.
MLA	Qian, Kuang,et al."A remote sensing monitoring method for alpine grasslands desertification in the eastern Qinghai-Tibetan Plateau".JOURNAL OF MOUNTAIN SCIENCE 17.6(2020):1423-1437.