水土保持通报2011，Vol.31Issue(5)：215-219,5.
近10a黄土高原地区NDVI变化及其对水热因子响应分析
Changes of NDVI and Its Responses to Temperature and Precipitation on Loess Plateau over Last Ten Years
摘要
Abstract
Land cover change and its response to climatic variations is an essential part of researches on global climate change.Based on SPOT normalized difference vegetation index（NDVI）,the land cover changes of the loess plateau during the last ten years were analyzed at multi temporal scales using several geo-statistical methods,as well as the response of NDVI to the precipitation and temperature.The results show that the vegetation cover increased substantially during 1999—2008.All the NDVIs at the scales of 10-day,month and season showed single-peak curves with the maximum in August and the minimum in February.Monthly scale was found the appropriate scale for the study addressing the response of NDVI to precipitation and temperature on the loess plateau.The responses of NDVI to temperature and precipitation varied at different scales on loess plateau.The coefficients of correlations between NDVI with temperature were greater than that with precipitation at 10-day or month scale,while lower at season scale.关键词
NDVI/气温/降水量/相关系数/黄土高原Key words
NDVI/the loess plateau/temperature/precipitation/correlation coefficient分类
农业科技引用本文复制引用
陈安安,孙林,胡北,罗隆诚,王俊..近10a黄土高原地区NDVI变化及其对水热因子响应分析[J].水土保持通报,2011,31(5):215-219,5.基金项目
国家大学生创新性实验计划项目“基于NDVI的黄土高原植被变化及其对气候因子的多尺度响应” （）
国家自然科学基金项目“半干旱区社会—生态系统对干旱的适应演化机制” （）
