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 4^th 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 4^th neighborhood were exacter than 8 neighborhood reflection in analyzing the spatial structure; 2) the distance determinant method of the 4^th neighborhood was much better than the 8 neighborhood translation in applicability of plot shape; 3) the distance determinant method of the 4^th neighborhood was more effective than the buffer zone in the ratio of the trees taken part in the calculation.

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