吉林省东部的长白山区面积约为10万km~2,地形和气候类型复杂多样。客观地分析该山区热量资源的分布对山区农业生产的发展很有意义。热量资源在山区的空间分布函数可分解为两部分:(1)取决于经度(λ)、纬度((?))和海拔高度(h)的宏观趋势函数 T(λ,(?),h);(2)取决于坡度(α)和坡向(β)的地形影响函数 P(α、β)。这两类函数的叠加可较全而地反映山区热量资 The area of ​​Changbai Mountain in eastern Jilin Province is about 100,000 km ~ 2, and the topography and climatic types are complex and diverse. Objectively analyzing the distribution of heat resources in this mountain area is of great significance to the development of agricultural production in mountainous areas. The spatial distribution function of heat resources in mountainous areas can be decomposed into two parts: (1) the macro trend function T (λ, (?), H) depending on longitude (λ), latitude ; (2) the terrain impact function P (α, β) which depends on the slope (α) and aspect (β). The superposition of these two types of functions can be more fully reflect the mountain heat resources