鼎湖山南亚热带常绿阔叶林20公顷样地群落特征研究

叶万辉, 曹洪麟, 黄忠良, 练琚愉, 王志高, 李林, 魏识广, 王章明

COMMUNITY STRUCTURE OF A 20 HM2 LOWER SUBTROPICAL EVERGREEN BROADLEAVED FOREST PLOT IN DINGHUSHAN, CHINA

YE Wan-Hui, CAO Hong-Lin, HUANG Zhong-Liang, LIAN Ju-Yu, WANG Zhi-Gao, LI Lin, WEI Shi-Guang, WANG Zhang-Ming

表6 鼎湖山大样地稀有种形成的原因

Table 6 The forming factors for the rare species in Dinghushan (DHS) plot

形成原因 Forming factors 物种数 Species number 比率 Proportion (%) 1. 物种特性 Species characteristics 49 44.54 区域稀有种 Rare in Lower Subtropical Area 32 29.09 鼎湖山分布较少 Rare in DHS Reserve 17 15.45 2. 区系交汇Floristic transitional zone 24 21.82 典型亚热带种类 Typical subtropical species 18 16.36 沟谷分布种 Ravine species 6 5.46 3. 干扰Disturbance 37 31.82 阳生性树种 Heliophytes species 19 17.27 中生性树种 Mesophyte species 16 14.55 果树 Fruit tree 2 1.82 合计 Total 110 100.00