气候变化领域集成服务门户(CCPortal): Relationships between tree-ring width index and NDVI of grassland in Delingha

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DOI	10.1007/s11434-006-1106-4
	Relationships between tree-ring width index and NDVI of grassland in Delingha
	He Jicheng; Shao Xuemei
发表日期	2006
ISSN	1001-6538
起始页码	1106
结束页码	1114
卷号	51 期号:9
英文摘要	Using five well-replicated Qilian juniper (Sabina przewalskii Kom.) tree-ring width index series, monthly normalized difference vegetation index (NDVI) of grassland, and climatic data from 1982 to 2001, the relationships between tree-ring width index, NDVI of grassland, and climatic data were analyzed firstly. Then, the relationship between tree-ring width index and NDVI of grassland was explored. The results showed that: (1) Temperature and precipitation in June influenced tree-ring width index and NDVI of grassland deeply in Delingha. (2) There were Significant relationships between five tree-ring width index series (DLH1-DLH5) and monthly NDVI of grassland from June to September, with the most significant relationship being between tree-ring width index series and NDVI of grassland in August. (3) The PC1 (the first principal component derived from DLH1-DLH5 series) exhibited good agreement with monthly NDVI of grassland in the grass growth season (from June to September) and the averaged NDVI in the growth season, which was attributed to their common responses to water-supply limit in Delingha. This study may allow an increase in studying the past dynamics of grassland in Delingha in that the variation of grassland NDVI during the last millennium has been reconstructed from PC1.
关键词	CHINA PRODUCTIVITY VEGETATION CLIMATE GROWTH
英文关键词	Delingha; tree-ring width index; grassland; NDVI
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000238882500014
来源期刊	CHINESE SCIENCE BULLETIN
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/257416
推荐引用方式 GB/T 7714	He Jicheng,Shao Xuemei. Relationships between tree-ring width index and NDVI of grassland in Delingha[J]. 中国科学院青藏高原研究所,2006,51(9).
APA	He Jicheng,&Shao Xuemei.(2006).Relationships between tree-ring width index and NDVI of grassland in Delingha.CHINESE SCIENCE BULLETIN,51(9).
MLA	He Jicheng,et al."Relationships between tree-ring width index and NDVI of grassland in Delingha".CHINESE SCIENCE BULLETIN 51.9(2006).