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通过对3种不同经营方式下毛竹林林分空间结构的比较研究表明,集约型毛竹林的混交度都在零度混交级上,复合型的平均混交度为0.378,粗放型的平均混交度为0.270;各样地毛竹的平均大小比数为0.368~0.554,其中,纯林中的毛竹处于绝对劣势和劣势的比例相对较高,而复合型的毛竹明显处于优势和亚优势的比例比较高;各样地的角尺度图基本上呈正态分布,但都有右偏斜的趋势,其平均值在0.533~0.553,均属于集聚分布格局,但复合型竹林接近均匀分布。从3个空间结构指标研究可以得出,复合型毛竹林经营较毛竹纯林更利于可持续经营和森林的生态保护。
Through the comparative study on the spatial structure of Phyllostachys pubescens forest in three different management modes, it shows that the mixed degree of intensive bamboo stands is at the zero-degree mixing level, the average mixing degree of compound type is 0.378, the extensive type average mixing degree is 0.270 ; The average size ratio of Moso bamboo varied from 0.368 to 0.554. Among them, the proportion of Moso bamboo in pure forest was higher than that in absolute inferiority and inferiority, while that of Moso bamboo was significantly higher and subdominant; The plot of the plot has a normal distribution, but all have a right-skewed trend. The average value of the plot ranges from 0.533 to 0.553, all of which are clustered and distributed, but the composite bamboo forest is nearly evenly distributed. It can be concluded from the three spatial structure index studies that composite bamboo forest is more conducive to sustainable management and forest ecological protection than the pure bamboo forest.