Research on Thinning Intensity of Natural Secondary Forest —A Case of Schima superba Secondary Forest of Qingshigang Forest Farm

FOREST RESOURCES WANAGEMENT ›› 2013, Vol. 0 ›› Issue (5): 137-141.

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Research on Thinning Intensity of Natural Secondary Forest —A Case of Schima superba Secondary Forest of Qingshigang Forest Farm

LÜ Yong¹, TAN Yangxin¹, LÜ Feizhou¹, LI Xinjian², ZHANG Jiang¹

1. Central South University of Forestry and Technology,Changsha 410004,China;
2. Central South Forest Inventory and Planning Institute,Changsha 410014, China

Received:2013-06-13 Revised:2013-09-02 Online:2013-10-28 Published:2020-11-23

Abstract

Abstract: On the basis of the forest stand spatial structure parameters,this takes uniform angle index as the main adjustment of the forest stand spatial structure optimization,and combined with intermediate cutting index,determine the trees for intermediate cuttings,and analyses forest stand spatial structure after intermediate cuttings,and finally determine the intensity of intermediate cutting.The results show that when thinning spacing distribution of trees changed from gathering distribution to random distribution,the average uniform angle index is 0.49. Mixed degree was improved,trees competition index and intermediate cutting index decrease,and neighborhood comparison remained about the same. The adjustment of forest stand reaches the expected aim and forest stand structure was optimized.Therefore,the determined thinning intensity is 26.2%.

Key words: secondary schima superba forest, stand spatial structure, intermediate cutting index, simulated thinning

CLC Number:

S753
S718.5

LÜ Yong, TAN Yangxin, LÜ Feizhou, LI Xinjian, ZHANG Jiang. Research on Thinning Intensity of Natural Secondary Forest —A Case of Schima superba Secondary Forest of Qingshigang Forest Farm[J]. FOREST RESOURCES WANAGEMENT, 2013, 0(5): 137-141.

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Research on Thinning Intensity of Natural Secondary Forest —A Case of Schima superba Secondary Forest of Qingshigang Forest Farm

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