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沙地樟子松天然林林分密度控制图是依据林分密度效应理论编制的 ,它由等树高线、等直径线、密度管理线、最大密度线和自然稀疏线等五组曲线组成。该图的单位面积、蓄积量估计值平均检验精度为 88.4% ,能满足生产实践中的估测需要。它能广泛应用于林分定量抚育间伐、生长收获预估、森林资源清查、造林设计、森林类型划分等许多方面 ,是集约化经营森林的重要工具。
The natural density control map of Pinus sylvestris var. Mongolica is based on the theory of stand density effect. It consists of five sets of curves such as tree height line, isodiametric line, density management line, maximum density line and natural sparse line. The unit area of the map, the cumulative average estimated accuracy of the test was 88.4%, to meet the production needs of the estimation. It can be widely used in many aspects such as quantitative tending of thinning, estimation of growth and harvest, inventory of forest resources, afforestation design and classification of forest types, which are important tools for intensive management of forests.