中文摘要：

利用小波分析和遥感技术相结合的方法，研究了气候变化对1961--2005年内蒙古中东部沙地．湿地镶嵌景观的影响．结果表明：1961--2005年，研究区年均气温呈直线上升趋势，增温率为0．32℃·（10a）^-1，年降水量变化呈现30a的长周期和15a的短周期，年均风速呈下降趋势，10a的风速减小率为0．26m·S^-1；研究区东南部存在一个气候变化恒定区域，由此恒定区向西北进入浑善达克沙地腹地，向东逐步进入科尔沁沙地腹地；2010年以前，研究区仍将维持气温升高、降水偏少、风速减小的趋势；受气候暖干化的影响，浑善达克沙地及其周围湿地的总面积呈逐年缩小趋势，随着沙地内部植被的退化，流动沙地不断扩大、湿地萎缩、湖泊干涸，而相应的固定和半固定沙地面积则明显减少．

英文摘要：

By using wavelet transform and remote sensing techniques, the influence of climate change on the unique mosaic landscape of sand land-wetland in middle-east Inner Mongolia in 1961 -2005 was studied. The results showed that in 1961-2005, the annual air temperature in study area had an increment of 0. 32 ℃ · （10 a） -1, the annual precipitation fluctuated with a cycle of 30 years and of 15 years, and the annual average wind speed decreased by 0. 26 m · s^-1 . （ 10 a） ^-1 In the southeast part of study area, which located in the places between Hunshandake sand land and Keerqin Deserts, there was a district, in which, the climatic characteristics did not change evidently. Until 2010, the study area would still have an increasing air temperature, lesser precipitation, and decreasing wind speed. Under the influence of warming and drying, the total area of Hun- shandake sand land and the wetland around reduced year after year, and, with the vegetation degra- dation on sand land, wetland shrunk and lake dried up, moving sand land enlarged ceaselessly, while immovable and semi-moving sand lands reduced obviously.