水土保持通报2016，Vol.36Issue(5)：340-345,351,7.DOI:10.13961/j.cnki.stbctb.2016.05.059
1961－2010年锡林郭勒盟气温和降水时空变化特征
Temporal-spatial Changes of Temperature and Precipitation in Xilingol League f rom 1961 to 2010
摘要
Abstract
Objective] This paper analyzed the spatial and temporal variations of temperature and precipitati‐on in Xilingol League of Inner Mongolia ,in order to provide a scientific support for environmental evolution and early warning of temperature and precipitation change in this area .[Methods] We collected monthly mean air temperature and precipitation data of 15 meteorological site in Xilingol League from 1961 to 2010 . The unitary linear recursive analysis ,linear trend analysis ,Mann‐Kendall test and Morlet wavelet methods were used to analyze the spatial and temporal variations of climate change .[Results] The annual mean temperature demonstrated a significant increasing trend during the past 50 years at a rate of 0 .44 ℃/10 a . The increase of temperature in winter was the greatest with an increasing rate of 0 .52 ℃/10 a .The annual mean temperature changed abruptly in 1991 ,and there was a 1 .32 ℃ temperature difference before and after this abrupt change .There were significant cyclical changes at 28 a ,9 a and 5 a periods ,and it is still in warm period in the next few years .Annual precipitation showed a downward trend from 1961 to 2010 at a rate of 3.9 mm/10 a ,and it is most obvious in summer .There were significant cyclical changes at 25 and 7 years period with no obvious abrupt change point ,and it is still in the stage of little rain in the next few years . [Conclusion] The climate of Xilingol League showed a trend of drought during the past 50 years .关键词
锡林郭勒/气温/降水量/气候变化Key words
Xilingol League/air temperature/precipitation/climate change分类
天文与地球科学引用本文复制引用
佟斯琴,刘桂香,武娜..1961－2010年锡林郭勒盟气温和降水时空变化特征[J].水土保持通报,2016,36(5):340-345,351,7.基金项目
中国农业科学院科技创新工程“草原非生物灾害防灾减灾” （）
