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《Journal of Anhui Agricultural Sciences》 2008-30
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Study on the Spatial Interpolation of Agroclimatic Resources in Chongqing

LIN Xiao-song et al(School of River & Sea Engineering,Chongqing Jiao Tong University,Chongqing 400074)  
Taking Chongqing as a study area,and using the data from 44 weather stations,the paper analyzed the uncertainty in the spatial interpolation of agroclimatic resources data caused mainly by the number of weather stations.The cell size of interpolation grid and different interpolation methods base on GIS,IDW,Kriging,Spline and Trend methods were all adopted in the paper work.The results showed that different interpolation methods brought different levels of uncertainty.The more the number of stations in the interpolation,the less the uncertainty reflected by MAE in agroclimatic resources interpolation.The variations of cell size from 1,3,6 km to 9 km did not affect the accuracy remarkably.
【CateGory Index】: S162.3
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