干旱区生态环境知识资源中心(Arid): Response to climate change of different tree species and NDVI variation since 1923 in the middle arid region of Ningxia, China

Arid

	Response to climate change of different tree species and NDVI variation since 1923 in the middle arid region of Ningxia, China
	Wang Yajun; Lu Ruijie; Ma Yuzhen; Meng Hongwei; Gao Shangyu
来源期刊	Sciences in Cold and Arid Regions
ISSN	1674-3822
出版年	2014
卷号	6 期号:1 页码:30-36
英文摘要	The normalized difference vegetation index (NDVI) is used extensively to describe vegetation cover and ecological environment change. The purpose of this study was to contrast the response of different tree species growing in the same habitat to climate change and retrieve past NDVI using tree-ring width data from tree cores collected from the transitional zone of Pinus tabulaeformis and Picea crassifolia in the Luoshan Mountains in the middle arid region of Ningxia. Correlation analysis indicated that radial growth of P. tabulaeformis is more sensitive to precipitation and temperature change than that of P. crassifolia. Natural factors such as water availability and heat at this elevation are more suited to the growth of P. crassifolia, and are more advantageous to its renewal and succession. P. crassifolia is probably the better of the two species for protecting the forest ecosystem and conserving water in the Luoshan desertification area. Ring width of P. crassifolia correlates significantly with average NDVI for April-May (r =0.641, p <0.01), and both of them are influenced positively by precipitation in April-May. The reconstructed NDVI for 1923-2007 shows the relatively low vegetation cover occurred in the 1920s-1930s, the 1960s-1970s, and the early 21st century. The reconstructed NDVI better reflected the drought climate in the study area.
英文关键词	Picea crassifolia Pinus tabulaeformis tree-ring drought
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Science & Technology - Other Topics
CSCD记录号	CSCD:5057750
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335323
作者单位	Wang Yajun, College of Life Sciences, Beijing Normal University, Beijing 100875, China.; Lu Ruijie, Beijing Normal University, Key Laboratory of Environmental Change and Natural Disaster, Ministry of Education of China;;State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing 100875, China.; Ma Yuzhen, Beijing Normal University, Key Laboratory of Environmental Change and Natural Disaster, Ministry of Education of China;;State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing 100875, China.; Meng Hongwei, Beijing Normal University, Key Laboratory of Environmental Change and Natural Disaster, Ministry of Education of China;;State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing 100875, China.; Gao Shangyu, Beijing Normal University, Key Laboratory of Environmental Change and Natural Disaster, Ministry of Education of China;;State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing 100875, China.
推荐引用方式 GB/T 7714	Wang Yajun,Lu Ruijie,Ma Yuzhen,et al. Response to climate change of different tree species and NDVI variation since 1923 in the middle arid region of Ningxia, China[J],2014,6(1):30-36.
APA	Wang Yajun,Lu Ruijie,Ma Yuzhen,Meng Hongwei,&Gao Shangyu.(2014).Response to climate change of different tree species and NDVI variation since 1923 in the middle arid region of Ningxia, China.Sciences in Cold and Arid Regions,6(1),30-36.
MLA	Wang Yajun,et al."Response to climate change of different tree species and NDVI variation since 1923 in the middle arid region of Ningxia, China".Sciences in Cold and Arid Regions 6.1(2014):30-36.