新疆植被遥感绿度指数与水、热关系的动态相关分析  

Dynamic Correlation Analysis of Remote-Sensing Green Index of Vegetation and Hydrothermal Conditions in Xinjiang 1982-2003

作　　者：张生军[1] 王天明[1] 李钟汶[1] 牟溥[1] 寇晓军[1] 葛剑平[1] 

机构地区：[1]北京师范大学景观生态与可持续性科学研究中心,北京100875

出　　处：《生态与农村环境学报》2009年第2期16-19,共4页Journal of Ecology and Rural Environment

基　　金：中国科学院学部咨询项目

摘　　要：基于1982—2003年间GIMMS发布的NOAA/AVHRR遥感数据和新疆自治区53个地面国家标准站点的气象数据,研究新疆归一化植被指数(NDVI)动态变化及其与气候的时空关系。结果表明,22a间新疆植被NDVI年际变化总体上呈显著增长趋势,年平均增长率为0.59%,显著增长区域位于准噶尔盆地南缘和塔里木盆地西南缘;生长季、夏季和秋季NDVI与同季降水相关显著,春季、秋季NDVI与同季温度相关显著;NDVI与温度呈显著正相关的区域主要分布于阿尔泰山、天山和昆仑山等山区,与降水呈显著正相关的区域分布于平原、低山带和绿洲。Based on the 1982-2003 NOAA/AVHRR remote-sensing data published by GIMMS and the meteorological data of 53 natural meteorological stations in Xinjiang Autonomous Region during the period of 1982-2003, dynamics of NDVI and its temporal and spatial correlation with climate was studied. Results show that within the 22 years, annual variation of NDVI generally displayed a significant rising trend, with an annual mean rising rate of 0.59% , particularly in areas along the southern fringe of the Dzungaria Basin and the southwestern edge of the Tarim Basin. In summers and autumns, NDVI was significantly related to precipitation, and in the springs and autumns it was significantly related to temperature. Areas showing the latter are distributed mainly in the mountainous areas, like Ahai Mountains in the north, Tianshan Mountain in the middle, and Kunlun Mountain and Altyn in the south, while areas showing the former in the plains, low lands and oases.

关 键 词：植被 NDVI 时空动态 降水 温度 

分 类 号：Q142.2[生物学—生态学]