Vegetation Dynamics and Its Relationship with Climatic Factors in the Changbai Mountain Natural Reserve  

作　　者：H0U Guanglei ZHANG Hongyan WANG Yeqiao 

机构地区：[1]School of Urban and Environmental Sciences, Northeast Normal University, Changchun, Jilin 130024, China [2]Department of Natural Resources Science, University of Rhode Island, Kingston, R102881-0804, USA

出　　处：《Journal of Mountain Science》2011年第6期865-875,共11页山地科学学报（英文）

基　　金：supported by the Science and Technology Innovation Platforms Initiative of Northeast Normal University under the project "Ecological Security and Data Assemblage of the Changbai Mountains International Georegion(Project No.106111065202)";the National Grand Fundamental Research 973 Program of China (Project No.2009CB426305)

摘　　要：This study examined the temporal variation of the Normalized Difference Vegetation Index （NDVI） and its relationship with climatic factors in the Changbai Mountain Natural Reserve （CMNR） during 2000 - 2009. The results showed as follows. The average NDVI values increased at a rate of 0.0024 year-1. The increase rate differed with vegetation types, such as 0.0034 year-1 for forest and 0.0017 year-1 for tundra. Trend analyses revealed a consistent NDVI increase at the start and end of the growing season but little variation or decrease observed in July during the study period. The NDVI in CMNR showed a stronger correlation with temperature than with precipitation, especially in spring and autumn. A stronger correlation was observed between NDVI and temperature in the tundra zone （2,000-2,600m） than in the coniferous forest （1,100-1,700m） and Korean pine-broadleaved mixed forest （7oo-1,1oom） zones. The results indicate that vegetation at higher elevations is more sensitive to temperature change. NDVI variation had a strong correlation with temperature change （r=0.7311, p〈0.01） but less significant correlation with precipitation change. The result indicates that temperature can serve as a main indicator of vegetation sensitivity in the CMNR.

关 键 词：Changbai Mountain Natural Reserve Remote sensing SPOT/VGT NDVI Climatic factors 

分 类 号：S759.9[农业科学—森林经理学] Q948[农业科学—林学]