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Quantifying Degradation Classifications on Alpine Grassland in the Lhasa River Basin, Qinghai-Tibetan Plateau

文献类型：期刊论文

作者Han, Wangya1,2; Lu, Huiting1,2; Liu, Guohua1,2; Wang, Jingsheng3; Su, Xukun1,2
刊名SUSTAINABILITY
出版日期2019-12-02
卷号11期号:24页码:14
关键词alpine grassland quantitative degradation classifications remote sensing Lhasa river basin
DOI10.3390/su11247067
通讯作者Liu, Guohua(ghliu@rcees.ac.cn) ; Su, Xukun(xksu@rcees.ac.cn)
英文摘要The Qinghai-Tibetan Plateau (QTP) has the world's largest alpine grassland ecosystem. The QTP ecosystem is extremely fragile and suffers continuous degradation. An accurate determination of the status of alpine grassland is the first crucial step in monitoring its degradation. A novel method combining field survey with remote sensing information based on ecological indicators is proposed. The degradation classification of alpine grassland was identified by multivariate hierarchical analysis based on 270 field plots. The spatial pattern of alpine grassland degradation was mapped by determining remote sensing variables that corresponded to field indicators of the degradation classification system. The results showed that clustering analysis divided the degradation classification of alpine grassland into five classes: Non-Degraded (ND), Slightly Degraded (SLD), Moderately Degraded (MD), Severely Degraded (SD), and Extremely Degraded (ED). The most significant factors for alpine grassland degradation included the dominance of Cyperaceae plants, soil total nitrogen content, soil organic carbon content, soil total carbon content, soil bulk density, soil pH, dominance of miscellaneous plants, and elevation among all 17 variables. The assessment and mapping of alpine grassland degradation provide an important basis for alpine grassland protection and management, particularly at a large scale.
WOS关键词VEGETATION INDEX ; YELLOW RIVERS ; LANDSAT TM ; PRODUCTIVITY ; YANGTZE ; COVER ; TREES
资助项目National Key Research and Development Program of China[2016YFC0502102] ; Key Science and Technology Plan of Tibet Autonomous Region[Z2016C01G01/08]
WOS研究方向Science & Technology - Other Topics ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000506899000170
出版者MDPI
资助机构National Key Research and Development Program of China ; Key Science and Technology Plan of Tibet Autonomous Region
源URL[http://ir.igsnrr.ac.cn/handle/311030/131462]  
专题中国科学院地理科学与资源研究所
通讯作者Liu, Guohua; Su, Xukun
作者单位1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Han, Wangya,Lu, Huiting,Liu, Guohua,et al. Quantifying Degradation Classifications on Alpine Grassland in the Lhasa River Basin, Qinghai-Tibetan Plateau[J]. SUSTAINABILITY,2019,11(24):14.
APA Han, Wangya,Lu, Huiting,Liu, Guohua,Wang, Jingsheng,&Su, Xukun.(2019).Quantifying Degradation Classifications on Alpine Grassland in the Lhasa River Basin, Qinghai-Tibetan Plateau.SUSTAINABILITY,11(24),14.
MLA Han, Wangya,et al."Quantifying Degradation Classifications on Alpine Grassland in the Lhasa River Basin, Qinghai-Tibetan Plateau".SUSTAINABILITY 11.24(2019):14.

入库方式： OAI收割

来源：地理科学与资源研究所

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