摘要
对巢湖低丘4种不同的森林类型林下植物种类进行调查,并用Shannon-Wiener指数、生态优势度指数、均匀度指数以及重要值4种描述物种多样性的数量指标,分析各森林类型林下植物多样性变化特征。结果表明:Shannon-Wiener指数和生态优势度指数由大到小依次是落叶阔叶林>采伐迹地>毛竹林>马尾松林;而均匀度指数呈与此相反的变化趋势。此外,文中还从生物多样性保护的角度,提出在巢湖低丘"退耕还林、恢复林草植被"的过程中,应尽量通过"封育"或人工更新的方式营造落叶阔叶混交林。
The paper investigated the species of plant under four different forest types in Chaohu hill, and used the indices of ShannonWiener, ecological dominance,community evenness and the important value to analyze the characteristic of species diversity variation for different forest types. The results show that the indices of ShannonWiener and ecological dominance from high to low are deciduous broadleaved forest＞harvested site＞bamboo forest＞masson′s pine forest,but the community evenness index is the opposite trend. Furthermore from species diversity protection, the paper put forward that the more deciduous broadleaved forest should be developed in the course of 'changing farmland into forest' in Chaohu hill.
出处
《安徽农业大学学报》
CAS
CSCD
北大核心
2003年第2期163-167,共5页
Journal of Anhui Agricultural University
基金
国家计委攻关项目(98-02)
安徽省教育厅自然科学研究项目(2002kj100)资助。
