Change of snow cover and its impact on alpine vegetation in the source regions of large rivers on the Qinghai-Tibetan Plateau, China

doi:10.1657/1938-4246-46.3.632

CORC > 中国农业科学院 > 农业环境与可持续发展研究所 > 气候变化研究室

	Change of snow cover and its impact on alpine vegetation in the source regions of large rivers on the Qinghai-Tibetan Plateau, China
	Wan, Yun-fan 1,2; Gao, Qing-zhu 1,2; Li, Yue 1,2; Qin, Xiao-bo 1,2; Ganjurjav 1,2; Zhang, Wei-na 1,2; Ma, Xin 1,2; Liu, Shuo 1,2
刊名	ARCTIC ANTARCTIC AND ALPINE RESEARCH
	2014
卷号	46 期号:3 页码:632-644
ISSN号	1523-0430
DOI	10.1657/1938-4246-46.3.632
通讯作者	Wan, Yun-fan
英文摘要	Based on a Normalized Difference Vegetation Index (NDVI) and remote sensing data of snow cover, we analyzed the variation in NDVI in relation to trends in snow cover and vegetation of the source regions of large rivers on the Qinghai-Tibetan Plateau. We then calculated the relationship between snow cover duration, snow depth, and NDVI to reveal the effect of snow cover change on vegetation growth on a regional scale. The results show that both snow depth and duration tend to reduce gradually from northeast to southwest on the Qinghai-Tibetan Plateau. Furthermore, snow cover duration (snow depth > 0 cm) has high interannual fluctuation and generally shows an increasing trend (P < 0.01) from 1980 to 2004. The interannual fluctuations of the duration of days with snow depth >= 5 cm as well as the maximum and average snow depth are also quite high, but they generally show insignificant tendencies (P > 0.05) from 1980 to 2004. The snow cover characteristics (duration and depth) are insignificantly correlated to annual maximum NDVI. However, a significant positive correlation (P < 0.05) is observed between snow cover duration (snow depth > 0 cm) and the NDVI values of both April and July, and an obvious negative correlation (P < 0.05) is observed between snow depth and the NDVI value in October across all source regions from 1981 to 2004. In the study area, increasing snow depth and the prolongation of the duration of snow cover have adverse effects on vegetation growth the following year. The melting of snow brings increasing effects to the NDVI value in the spring.
学科主题	Environmental Sciences ; Geography, Physical
语种	英语
出版者	INST ARCTIC ALPINE RES
WOS记录号	WOS:000341282400010
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/19798]
专题	农业环境与可持续发展研究所_气候变化研究室
作者单位	1.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China 2.Minist Agr, Key Lab Agroenvironm & Climate Change, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Wan, Yun-fan,Gao, Qing-zhu,Li, Yue,et al. Change of snow cover and its impact on alpine vegetation in the source regions of large rivers on the Qinghai-Tibetan Plateau, China[J]. ARCTIC ANTARCTIC AND ALPINE RESEARCH,2014,46(3):632-644.
APA	Wan, Yun-fan.,Gao, Qing-zhu.,Li, Yue.,Qin, Xiao-bo.,Ganjurjav.,...&Liu, Shuo.(2014).Change of snow cover and its impact on alpine vegetation in the source regions of large rivers on the Qinghai-Tibetan Plateau, China.ARCTIC ANTARCTIC AND ALPINE RESEARCH,46(3),632-644.
MLA	Wan, Yun-fan,et al."Change of snow cover and its impact on alpine vegetation in the source regions of large rivers on the Qinghai-Tibetan Plateau, China".ARCTIC ANTARCTIC AND ALPINE RESEARCH 46.3(2014):632-644.