应用生态学报2012，Vol.23Issue(10)：2821-2828,8.
基于MODIS NDVI的东北虎分布区植被变化趋势
Variation trends of the vegetations in distribution region of Amur tiger based on MODIS NFVI
摘要
Abstract
By using the averaged 250 m MODIS NDVI data in growth seasons of 2000-2010 and the approach of ordinary linear regression, this paper analyzed the variation trends of the vegetations in the distribution region of Amur tiger ( Panthera tigris altaica) , the Far East region of Russia and the eastern part of Northeast China, as well as the relationships between these variation trends and the anthropogenic activities. In 2000-2010, the areas with significantly decreased NDVI were sparsely distributed and accounted for 9.6% of the total, while the areas with significantly increased NDVI were mainly concentrated in the central part of northern Russia Far East Region and only accounted for 0. 5% of the total. The percentage of the areas with significantly decreased NDVI in the distribution region of Amur tiger was slighdy higher than that in the whole study region. The areas with significantly decreased NDVI were mainly distributed in the places of low elevation, gen-de slope, and close to roads/railroads. The number of the pixels with significantly decreased NDVI increased with the increase of the nearest distance to residential locations first, and then decreased gradually. The significant decrease of the NDVI was closely related to the anthropogenic activities, and thus, to adopt effective measures to reduce human disturbances could control the vegetation degradation, and further, provide sustainable basis for the protection of Amur tiger and the conservation of the biodiversity in the studied region.关键词
东北虎/归一化植被指数/MODIS/人类活动/植被退化Key words
Amur tiger/ NDVI/ MODIS/ anthropogenic activity/ vegetation degradation分类
农业科技引用本文复制引用
王化儒,王天明,葛剑平..基于MODIS NDVI的东北虎分布区植被变化趋势[J].应用生态学报,2012,23(10):2821-2828,8.基金项目
国家自然科学基金项目(31121003,31270567)和国家科技基础工作专项(2007FY110300,2012FY112000)资助. （31121003,31270567）
