Species diversity ,which is an effective index to reflect the community structure and function characteris‐tics ,is a measure of ecosystem stability .Field investigation of part of the region of Dongming Sub‐Farm in Guangxi State‐Owned Yachang Forest Farm was conducted .The species diversity of the field were determined .The determi‐nation method and recording are more vigorous ;the results of the records were analyzed .Result shows that forest vegetation coverage of Pinus massoniana& Cunninghamia lanceolata plantation in Dongming Sub‐Farm of Guangxi State‐Owned Yachang Forest Farm are higher ;structure of plant community which is more complex is conducive to protect the development of diversity for ecological structure .%物种多样性是反映群落结构和功能特征的有效指标，是生态系统稳定性的量度。通过对广西国有雅长林场东明分场部分区域进行野外调查研究，对野外物种多样性进行测定并对记录结果进行分析。结果表明：广西国有雅长林场东明分场马尾松林和杉木林的森林植被覆盖度较高，植物群落结构较为复杂，有利于保护生态结构多样性。
展开▼
