• 研究报告 •

### 辽东大伙房水库库区天然针阔次生林林分空间结构

1. (北京林业大学， 北京 100000)
• 出版日期:2018-11-10 发布日期:2018-11-10

### Spatial structure of natural mixed coniferous-broadleaf secondary forest in Dahuofang Reservoir area, eastern Liaoning.

GONG Wen-yan, CHEN Li-hua*, YU Xin-xiao, ZHENG Xue-liang, ZHANG Xue-qi

1. (Beijing Forestry University, Beijing 100000, China).
• Online:2018-11-10 Published:2018-11-10

Abstract: To understand the merit of spatial structure of coniferous-broadleaf secondary forests in Dahuofang Reservoir area, eastern Liaoning, we measured four structure parameters, i.e., angular scale, neighborhood comparison, mixing degree and stand spatial structure index, to analyze the characteristics of stand spatial structure in upper slope and lower slope. The results showed that the horizontal distribution of the forest in the upper slope was randomly distributed, while that in the lower slope was characterized by a slight clustering distribution. In terms of individual plant size in the two positions, a subdominant state was found in the lower slope, while moderate neutral state was found in upper slope. The mixing degree was 0.29 and 0.56 for the upper and lower slope respectively, with the latter one being better. The spatial structure index was 54.81 and 68.04 for the upper and lower slope, respectively, so the integral structure in the lower slope was better. Our results suggested that the forest spatial structure in the lower slope was better than that in the upper slope, which provided a basis for managing the forest structure in this area.