The ability of forest for climate conservation

开展了以下三项关于森林气候涵养能力的研究。1)地表温度与土地利用的关系：利用Landsat数据建立了林地到其他土地利用的地表温度变化方程。如果土地利用从森林到农田的变化，通过该方程可以计算出大约4-5ﾟC的表面温度。2)森林砍伐引起的地表温度变化：利用NOAA/AVHRR数据比较了林区和火烧区的地表温度。火烧区的地表温度比林区高出约6ﾟC。3)毁林对中国地区泰兰、加里曼丹和宁夏气温分布的影响：泰老交界处出现了5-6ﾟC左右的高温。

The following three studies about the ability of forest for climate conservation were performed. 1)The relation between surface temperature and land uses: A equation for surface temperature changing from forest land to other land uses were derived using Landsat data. Surface temperature was able to calculate about 4-5ﾟC high by the equation, if land use changes from forest to crop field. 2)Changing of surface temperature due to deforestation: Surface temperature between forest area and burnt area were compared using NOAA/AVHRR data. Surface temperatures on burnt areas were about 6.0ﾟC higher than that on forest areas. 3)Effect of deforestation on distributions of air temperature in Tailand, Kalimantan and Ningxia in China: About 5-6ﾟC high air temperature appeared in area of deforestation between Tailand and Laos.