天然柞木林不同群落结构林分生产力效益分析及最优化模式的探讨

ANALYSIS ON PRODUCTIVITY EFFECT OF NATURAL OAK STAND OF DIFFERENT COMMUNITY STRUCTURE AND THE OPTIMAL MODEL

本文在对三江平原不同群落结构的天然柞木林内的气候因子、生理指标进行研究的基础上,分析了其生产力效益。最后,选取单株林木生长量、单位面积净初级生产力和蓄积量的增长量三个判据,对不同群落结构进行了最优化评价。评价结果以6m效应带为最佳结构。

Effect of productivity is analysed in this paper by researching on climatic factors and physiological index of natural Oak forest of different community structures in Sanjiang plain. Meanwhile, three criterions are taken, yield of Signal tree, net primary productivity of unit area and total storage of stand to evaluate different communities. The result shows that the forest with 6m width of edge effect is the best.