Study on the Adaptability of Voronoi Diagram on Determiningthe Nearest Neighboring Trees of Natural Mixed Spruce-Fir Forests

Abstract

Abstract: Based on the 147 trees of natural mixed Spruce-fir forest sample plots which are located in Jingou Forestry Farm of Wangqing Forestry Bureau in Jilin province,this paper tested the outcomes of calculating the spatial structure indexes based on Voronoi diagram and the outcomes of traditional algorithms that the nearest neighboring trees are 4.The GEMINUS test shows that the outcomes have significantly correlation and agreement between the two when calculating mingling and neighborhood comparison,both are effective results.But the outcomes of traditional method are lower than the outcomes of the Voronoi diagram.Overall,the mingling is higher and the neighborhood comparison is moderate of the natural mixed Spruce-Fir forests.Compared with the traditional method,determining the nearest trees based on Voronoi diagram is a more flexible.Therefore,Voronoi diagram is a more logical choice.

Key words: mingling, neighborhood comparison, Voronoi diagram

CLC Number:

S718.54

HAO Yuelan, ZHANG Huiru, TANG Shouzheng. Study on the Adaptability of Voronoi Diagram on Determiningthe Nearest Neighboring Trees of Natural Mixed Spruce-Fir Forests[J]. FOREST RESOURCES WANAGEMENT, 2011, (6): 59-64.

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