Then a karstic model is built based on the analysis of the spatial characteristic, distributing rule and controlling factor of rock mass.
分析了坝区岩溶空间形态特征、岩溶空间分布规律以及岩溶发育的控制因素，建立了左岸岩体溶蚀模式。
Using by the method of Difference Analyze and the theory of Regression Analyze, the analyzed the spatial characteristic of vegetation change in arid land.
在差值分析和回归理论的支持下，分析了干旱区植被变化的空间特征；
The results show that: the spatial characteristic of annual mean upper temperature is high consistent with seasonal's in North China, and in winter it is the strongest.
结果表明：华北地区高空年、季平均气温变化均具有非常高的空间一致性，其中冬季的一致性特征最明显；
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