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FOREST RESOURCES WANAGEMENT ›› 2020›› Issue (1): 62-69.doi: 10.13466/j.cnki.lyzygl.2020.01.009

• Scientific Research • Previous Articles     Next Articles

Dynamic Analysis on the Effect of Pinus massoniana Plantation Management at Different Growth Stages

Jiangui PENG   

  1. Central South Inventory and Planning Institute of National Forestry and Grassland Administration,Changsha 410004
  • Received:2019-11-22 Revised:2019-12-12 Online:2020-02-28 Published:2020-05-18

Abstract:

In order to reveal the dynamic characteristics of the management effect of Pinus massoniana plantation in different development stages,the spatial structure,species diversity,soil fertility,tree growth and other indicators of Pinus massoniana plantation in different development stages of Qingyanghu Forest Farm were analyzed dynamically,and the principal component analysis method was used to analyze the spatial structure,species diversity,soil fertility,tree growth and other indicators comprehensive evaluation of operation effect.The results showed that the spatial structure,species diversity index and soil fertility of Pinus massoniana forest in different development stages were significantly improved.The comprehensive evaluation scores of the effect of thinning and replanting in 9 plots of young forest,middle age forest and near mature forest were 0.079,-0.021,-0.241,0.528,0.438,1.028,-0.145,-0.780,-0.886,respectively.The higher the scores,the better the effect of the transformation.The management promoted the optimization of spatial structure,the improvement of species diversity,the improvement of soil fertility and the increase of forest accumulation and growth in different development stages of Pinus massoniana plantation,and the development of the stand to the direction of multi-layer mixed forest of different ages,which provided theoretical basis for the management of Pinus massoniana plantation.

Key words: Pinus massoniana forest, stand spatial structure, different developmental stages, plant diversity, soil fertility

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