福建海岛滨海特有植物种-面积关系及物种丰富度决定因素

谢艳秋, 黄晖, 王春晓, 何雅琴, 江怡萱, 刘子琳, 邓传远, 郑郁善

Determinants of species-area relationship and species richness of coastal endemic plants in the Fujian islands

Yanqiu Xie, Hui Huang, Chunxiao Wang, Yaqin He, Yixuan Jiang, Zilin Liu, Chuanyuan Deng, Yushan Zheng

图5 滨海特有植物以及不同生活型物种丰富度的最佳模型选择和层次分割分析。图中森林图为使用全子集回归, 并根据最小AICc值筛选得出的最优模型, 森林图中虚线左侧为负相关, 右侧为正相关。柱形图为基于最优模型的层次分割分析。Area: 面积; Elevation: 海拔; PAR: 周长面积比; SI: 形状指数; AMW: 年均风速; AMT: 年均温; AP: 年降水量; DM: 距大陆距离; DN: 距最近大岛距离; BFA: 建筑与农田面积占比。

Fig. 5 The best model selection and hierarchical partitioning analysis of coastal endemic plants and different growth forms of species richness. The forest plot in the figure shows the optimal model obtained by using full subset regression and screening based on the minimum AICc value. The left side of the dashed line in the forest plot shows a negative correlation, while the right side shows a positive correlation. The column chart is a hierarchical segmentation analysis based on the optimal model. Area, Area; Elevation, Elevation; PAR, Perimeter area ratio; SI, Shape index; AMW, Annual mean wind; AMT, Annual mean temperature; AP, Annual precipitation; DM, Distance to the mainland; DN, Distance to the nearest big island; BFA, Proportion of buildings to farmland area.