摘要
本文选取锡林郭勒草原作为研究对象,研究1986～2010年气候变化规律,深入分析了气候变化对植被的影响。25年间锡林郭勒草原呈现增温趋势,平均增温率为0.054℃/a;降水量总体呈减少趋势,平均减少率为-2.33mm/a。气候变化对NDVI值具有显著影响,且有一定时滞性;植被受降水的影响大于温度;荒漠草原对气候变化响应程度较典型草原和草甸草原低。
The main point of this study is how the climate change,and how much it impacts on the vegetation in Xinlin Gol Grssland, from 1986 to 2010. During this 25- year period,the climate had shown a uptrend,0. 054℃ / a at average; but a downtrend in precipitation, which was at the rate of 2. 33mm / a. Obviously,climate change shows a significant time- lag influence on NDVI,and precipitation weights more for vegetation than temperature. Such impaction is found to be common in typical steppe and meadow steppe,compared with desert steppe.
出处
《环境与发展》
2013年第10期98-102,共5页
Environment & Development
关键词
气候变化
锡林郭勒
植被
Climate change
Xilin Gol
Vegetation
