气候变化领域集成服务门户(CCPortal): Assessment of vegetation dynamics and their response to variations in precipitation and temperature in the Tibetan Plateau

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DOI	10.1007/s10584-009-9787-8
	Assessment of vegetation dynamics and their response to variations in precipitation and temperature in the Tibetan Plateau
	Zhong, Lei; Ma, Yaoming; Salama, Mhd Suhyb; Su, Zhongbo
通讯作者	Zhong, L (通讯作者)
发表日期	2010
ISSN	0165-0009
EISSN	1573-1480
起始页码	519
结束页码	535
卷号	103 期号:3-4
英文摘要	The Tibetan Plateau is a region sensitive to climate change, due to its high altitude and large terrain This sensitivity can be measured through the response of vegetation patterns to climate variability in this region Time series analysis of Normalized Difference Vegetation Index (NDVI) imagery and correlation analyses are effective tools to study land cover changes and their response to climatic variations This is especially important for regions like the Tibetan Plateau, which has a complex ecosystem but lacks a lot of detailed in-situ observation data due to its remoteness, vastness and the severity of its climatic conditions In this research a time series of 315 SPOT VEGETATION scenes, covering the period between 1998 and 2006, has been processed with the Harmonic ANalysis of Time Series (HANTS) algorithm in order to reveal the governing spatiotemporal pattern of variability Results show that the spatial distribution of NDVI values is in agreement with the general climate pattern in the Tibetan Plateau The seasonal variation is greatly influenced by the Asian monsoon Interannual analysis shows that vegetation density (recorded here by the NDVI values) in the entire Tibetan Plateau has generally increased Using a 1 km resolution land cover map from GLC2000, seven meteorological stations, presenting monthly data on near surface air temperature and precipitation, were selected for correlation analysis between NDVI and climate conditions in this research A time lag response has also been found between NDVI and climate variables Except in desert grassland (Shiquanhe station), the NDVI of all selected sites showed strong correlation with air temperature and precipitation, with variations in correlation according to the different land cover types at different locations The strongest relationship was found in alpine and subalpine plain grass, the weakest in desert grassland
关键词	INTERANNUAL VARIABILITY NDVI INDEX GROWTH
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000285069300010
来源期刊	CLIMATIC CHANGE
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257803
推荐引用方式 GB/T 7714	Zhong, Lei,Ma, Yaoming,Salama, Mhd Suhyb,et al. Assessment of vegetation dynamics and their response to variations in precipitation and temperature in the Tibetan Plateau[J]. 中国科学院青藏高原研究所,2010,103(3-4).
APA	Zhong, Lei,Ma, Yaoming,Salama, Mhd Suhyb,&Su, Zhongbo.(2010).Assessment of vegetation dynamics and their response to variations in precipitation and temperature in the Tibetan Plateau.CLIMATIC CHANGE,103(3-4).
MLA	Zhong, Lei,et al."Assessment of vegetation dynamics and their response to variations in precipitation and temperature in the Tibetan Plateau".CLIMATIC CHANGE 103.3-4(2010).