Alpine grassland degradation index and its response to recent climate variability in Northern Tibet, China

doi:10.1016/j.quaint.2009.10.035

	Alpine grassland degradation index and its response to recent climate variability in Northern Tibet, China
	Gao, Qing-zhu 2,3; Wan, Yun-fan 2,3; Xu, Hong-mei 1; Li, Yue 3; Jiangcun, Wang-zha 4; Borjigidai, Almaz 5
刊名	QUATERNARY INTERNATIONAL
	2010
卷号	226 期号:1-2 页码:143-150
ISSN号	1040-6182
DOI	10.1016/j.quaint.2009.10.035
通讯作者	Gao, Qing-zhu
英文摘要	Northern Tibet is the headstream region for the Yangtze, Nu (Salween River), and Lancang (Mekong River). Sustaining the environmental conditions in the region is vital for Tibet and, as the source of many rivers, the whole of China and much of Asia. The study combines remote sensing data with data from other sources and national standards of grassland degradation index to assess alpine grassland degradation index between 1981 and 2004 in Northern Tibet. A Geographical Information System (GIS) was used to examine trends in grassland degradation index and its response to climate variability, including precipitation, temperature, and solar radiation. The results show that degradation has been very serious. The areas with a significant grassland degradation index trend accounted for 23.3% of the total grasslands in Northern Tibet. During 1981-2004, precipitation variability has benefited the recovery and protection of the grasslands, while temperature and solar radiation variability exacerbated grassland degradation index in Northern Tibet. The impact of regional climate change on grassland degradation index was on the balance more detrimental than positive from 1981 to 2004. (C) 2009 Elsevier Ltd and INQUA. All rights reserved.
学科主题	Geography, Physical ; Geosciences, Multidisciplinary ; GEOGRAPHY, PHYSICAL ; GEOSCIENCES, MULTIDISCIPLINARY
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000283815300019
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/19938]
专题	农业环境与可持续发展研究所
作者单位	1.China Meteorol Adm, Natl Climate Ctr, Beijing 100081, Peoples R China 2.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China 3.Minist Agr, Key Lab Agroenvironm & Climate Change, Beijing 100081, Peoples R China 4.Nagqu Grassland Stn, Nagqu 852100, Tibet Autonomou, Peoples R China 5.Minzu Univ China, Inst Chinese Minor Tradit Med, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Gao, Qing-zhu,Wan, Yun-fan,Xu, Hong-mei,et al. Alpine grassland degradation index and its response to recent climate variability in Northern Tibet, China[J]. QUATERNARY INTERNATIONAL,2010,226(1-2):143-150.
APA	Gao, Qing-zhu,Wan, Yun-fan,Xu, Hong-mei,Li, Yue,Jiangcun, Wang-zha,&Borjigidai, Almaz.(2010).Alpine grassland degradation index and its response to recent climate variability in Northern Tibet, China.QUATERNARY INTERNATIONAL,226(1-2),143-150.
MLA	Gao, Qing-zhu,et al."Alpine grassland degradation index and its response to recent climate variability in Northern Tibet, China".QUATERNARY INTERNATIONAL 226.1-2(2010):143-150.