【摘要】 文中运用1982～2016年NDVI数据对祁连山植被时空变化特征进行了研究,结果表明:祁连山植被具有明显的时空差异性,整体上呈波动增加趋势,但增长速度较为缓慢,增长区域主要集中在高海拔地区,减少区域则主要表现在河谷地带。不同植被的变化也存在明显的差异,其中荒漠植被增长较为迅速。研究区内植被的变化是气象因子和频繁人类活动共同作用的结果,这将为区域内植被的进一步调查研究和环境保护提供一定的科学依据。更多还原

【Abstract】 In this paper, the spatial and temporal variation characteristics of vegetation in Qilian Mountain were studied by using NDVI data from 1982 to 2016. The results showed that the vegetation of Qilian Mountain had the obvious spatial and temporal differences, and the overall fluctuation was increasing, but the growth rate was slow, and the growth area was mainly concentrated in high altitude. In the region, the reduction area was mainly in the valley area. There were also obvious differences in the changes of the different vegetation, and the desert vegetation grew more rapidly. The change of vegetation was the result of the joint action of meteorological factors and frequent human activities in the study area, which would provide a scientific basis for the further investigation and the environmental protection of vegetation within the region.更多还原