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山区局地气侯除受宏观地形因子影响外，还要受复杂的小环境的影响。为了进一步分析山区局地气侯的差异，更好地对山区自然资源进行开发，应用小网格方法，引入地形因子，修定气候学方程，采用数学方法建立１ｋｍ热量、降水方程；对北京山区进行分析计算的结果表明，它较好地反映了地形对气候资源的影响，基本符合实际情况，月平均温度误差不超过０．６℃，年降水量绝对误差不超过４０ｍｍ，有一定的实用价值。
In addition to being affected by the macro-topographical factors, the local climate and climate in mountainous areas are also affected by the complicated small environment. In order to further analyze the differences in local climate and climate in mountainous areas, develop natural resources in mountainous areas better, apply the method of small grids, introduce topographic factors and modify climatological equations, and establish 1km heat and precipitation equations by mathematical methods. The results of the analysis and calculation show that it better reflects the impact of terrain on climate resources, basically in line with the actual situation, the monthly average temperature error of not more than 0.6 ℃, the annual rainfall absolute error of not more than 40mm, have some practical value .