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TIAN Guo-heng, WANG De-qiang, GU Jian-cai, TAN Xu-quan, LU Gui-qiao. Comparison of spatial structures among different stand types in Saihanba Mechanized Forest Farm[J]. Journal of Beijing Forestry University, 2010, 32(3): 80-83.
Citation: TIAN Guo-heng, WANG De-qiang, GU Jian-cai, TAN Xu-quan, LU Gui-qiao. Comparison of spatial structures among different stand types in Saihanba Mechanized Forest Farm[J]. Journal of Beijing Forestry University, 2010, 32(3): 80-83.

Comparison of spatial structures among different stand types in Saihanba Mechanized Forest Farm

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  • Received Date: December 31, 1899
  • Revised Date: December 31, 1899
  • Published Date: May 29, 2010
  • This study compared the spatial structures among different stand types in Saihanba Mechanized Forest Farm by using three indices, i.e. the neighborhood comparison, uniform angle index and mingling degree. The results show that there exists competition within the stands, which did not affect the growth of trees. In the sample plots, No.2, 3, 5, 7, the differentiation within stands was quite obvious, indicating that we should take some forest management and tending measures. The mean values of uniform angle index in nine sample plots ranged from 0.50 to 0.60, which showed an aggregation distribution pattern. In the mixed forests, the average mingling degree were low, suggesting a less-mixed degree. According to spatial structures and different management purposes of the stands, we can take reasonable measures for forest management. 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