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CAS Workshop on Ecosystem Succession Theory and Practice of Ecological Restoration 低丘人工林林下植被的物种多样性研究 秦新生1 邢福武1 刘苑秋2 （1中科院华南植物研究所，广州，510650；2江西农业大学林学院，南昌，330045） 摘要：选取江西省泰和县狗丝茅岭低丘荒山实行人工植被恢复10年的恢复生态系统中8种主要人工林类型和1个对照区，通过比较这些类型林下植被的物种多样性（物种丰富度和Shannon-Wiener指数）和相关的环境因子，揭示这些类型林下植被物种多样性的差异及其与环境因子之间的关系。结果显示：1) 各人工林类型林下植被的Shannon-Wiener指数同物种丰富度具有相似的规律。2）环境因子与物种多样性的关系不是很明显，仅坡向、立地类型及土壤含水量等存在一些影响。3）人工林类型（造林树种）、林分组成（纯林或混交林）和林分密度对物种多样性的影响较为明显，其中林分密度的影响最为显著。 关键词：低丘；人工林；林下植被；物种多样性 Studies on
species diversity of vegetation under artificial forest on low hills Qin Xinsheng1
Xing Fuwu1 Liu Yuanqiu2 (1South China Institute of Botany, the Chinese Academy of Sciences , Guangzhou 510650, China; 2Forestry college of Jiangxi Agriculture University, Nanchang, 330045, China ) Abstract: A total of 9 plots with 8 main artificial forest types and 1 comparing region were chosen in this study. These plots, whose artifical vegetation rehabilitation have been for 10 years, represent restoration ecosystem of barren hill on low hills. By comparing species diversity of vegetation in different artificial forest types and relative environmental factors, the differences among these types and their correlation to the environmental factors were disclosed. The results show that: 1) Shannon-Wiener index of the artificial forest types had
similar regularity with that of species richness. 2) Enviromental factors hadn’t obvious correlation with species diversity, except aspect、soil types and soil water. 3) Forest types, crop formations and crop densities had obvious correlation with species diversity, particularly crop density. Key words: low hills; artificial forest; vegetation under forest; species diversity
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