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Treatment Methods of Plot Boundary Trees in Spatial Forest Structure Analysis

林分空间结构分析中样地边界木的处理方法

作 者 ：周红敏　惠刚盈　赵中华　胡艳波

期 刊 ：林业科学 2009年 45卷 2期 页码：1-5

关键词：关键词边界校正；距离缓冲区；8邻域平移式；8邻域对称式；第4邻体距离判定法；空间结构；

Keywords:Key words: edge correction, buffer zone, 8 neighborhood translation, 8 neighborhood reflection, the distance determinant method of the 4th neighborhood, spatial structure,

摘 要 ：

摘　要：选择1块100 m×100 m的实地调查样地并设置10块100 m×100 m的模拟样地，从空间结构参数大小比数、混交度和角尺度以及参与计算的株数比例等方面对距离缓冲区、8邻域对称式、8邻域平移式和第4邻体距离判定法这4种边界校正方法进行比较。结果表明：1）距离缓冲区法、8邻域平移式和第4邻体距离判定法在空间结构分析方面优于8邻域对称式；2）第4邻体距离判定法在样地形状的适用性方面优于8邻域平移式；3）第4邻体距离判定法在信息利用程度方面优于距离缓冲区法。

Abstract:

Abstract: In this study, one survey plot was selected and 10 simulative plots of 100 m×100 m were set up. Four edge correction methos of the buffer zone, the 8 neighborhood reflection, the 8 neighborhood translation and the distance determinant method of the 4th neighborhood on the neighborhood were compared with mingling index and angle index of tree spatial structure parameters and the ratio of the trees taken part in the calculation. The results indicated that:1) 8 neighborhood translation, the buffer zone, the distance determinant method of the 4th neighborhood were exacter than 8 neighborhood reflection in analyzing the spatial structure; 2) the distance determinant method of the 4th neighborhood was much better than the 8 neighborhood translation in applicability of plot shape; 3) the distance determinant method of the 4th neighborhood was more effective than the buffer zone in the ratio of the trees taken part in the calculation.

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