A remote sensing monitoring method for alpine grasslands desertification in the eastern Qinghai-Tibetan Plateau

doi:10.1007/s11629-020-5986-6

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2020 > Vol17 No.6

	A remote sensing monitoring method for alpine grasslands desertification in the eastern Qinghai-Tibetan Plateau
	Qian, Kuang; Yuan Quan-zhi; Han Ji-chong; Leng Rong; Wang Yu-shuang; Zhu Ke-hong; Lin Shuo; Ren Ping
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2020
卷号	17 期号:6 页码:1423-1437
关键词	Desertification monitoring Alpine grassland desertification index (AGDI) Geographical detector Zoige county
ISSN号	1672-6316
DOI	10.1007/s11629-020-5986-6
文献子类	Article
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.
电子版国际标准刊号	1993-0321
语种	英语
WOS记录号	WOS:000538038700011
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/46842]
专题	Journal of Mountain Science_Journal of Mountain Science-2020_Vol17 No.6
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]. JOURNAL OF MOUNTAIN SCIENCE,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.