选取福建省70个气象站点（其中10个为检验站点）1960—1990年的多年平均降水量作为数据源，基于ArcGIS10.1平台，采用了反距离权重加权法（IDW）、克里金法（Kriging）和趋势面法（Trend）三种空间插值方法，对降水的最优插值方法进行探究.结果表明，克里金法取得较好的效果，并对空间插值结果进行分析得出结论：福建省降水存在较大的空间变异性，并深受地形的影响，地区降雨量呈现出由东南沿海向西北内陆逐渐递增的趋势.而在德化、九仙山以及平和地区降水量呈现异常偏大情况，分析原因主要是由于在区域高大山脉的影响下，暖湿气流在地形抬升的过程中形成了大量降水.%In order to acquire a relatively precise result,the author selected average annual precipitation data of Fujian Province's 70 weather stations from 1960 to 1990 as data source, basing on the platform of ArcGIS 10.1, applied Inverse Dis⁃tance Weighting(IDW), Kriging, and Trend surface analysis in the optional spatial interpolation method of Fujian Prov⁃ince's precipitation.The results demonstrates that Kriging perform better. And by analyzing the results, the precipitation of Fujian Province is great spatial variability, showing a trend of gradually increasing from gradually Large amount of precipita⁃tion formation in the region of Dehua, Jiuxianshan Moutain and Pinghe county is due to warm air in the process of terrain ele⁃vation, affected by a moutainous area, Large amount of precipitation formation in warm air in the process of terrain elevation.
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