Based on the 34 stations monthly precipitation and 100m 100m dem of chongqing , the paper study spatial distribution of precipitation of chongqing based on gis . accounting to the theory of mountanious climatology , the paper analyse the factors affecting spatial distribution of precipitation , establish the model of spatial distribution of precipitation 本文用重庆地区34个气象观测站1971 - 2000年30年气候整编资料的月平均降水总量资料，以及重庆地区100m 100mdem数据，对重庆地区降水空间分布进行研究。根据山地气候学原理，利用gis技术，分析降水空间分布的影响因子，建立重庆地区月平均降水空间分布模型，计算重庆地区月平均降水量的空间分布。
This paper studies the spatial distrihution of water vapor press in the mountain areas of chongqing , with the month average data of water vapor press of climatic reorganized data including 34 meteorological observing stations in chongqing and 4 around it from 1971 to 2000 and 7 meteorological sentries in it from 1997 to 1999 , and 100mx 100m dem of chongqing . according to the theory of mountain climate and basing on gis , it analysises the influencing factors to water vapor press decreasing coefficients in chongqing , and studies the relations among water vapor press longitude latitude and sea level elevation , and founds the water vapor press spatial distribution model in chongqing , and calculates the spatial distribution of the month average and the year average water vapor press in chongqing , and completes the cartographies of the water vapor press spatial distribution of chongqing 本文利用重庆地区34个及其周围4个常规气象观测站1971 2000年30年和7个气象哨1997 1999年3年气候整编的月平均水汽压资料，以及重庆地区100m 100mdem数据，对重庆地区山地水汽压空间分布进行研究根据山地气候学原理，利用gis技术，分析重庆地区水汽压递减系数的影响因子，研究水汽压与经度纬度和海拔高度等因子的关系，建立重庆地区水汽压空间分布模型，计算重庆市月平均和年平均水汽压空间分布，并完成重庆市水汽压空间分布的制图。
