论文部分内容阅读
从杉木人工林科学经营和自然资源管理保护出发，根据定位研究和群落样地调查结果，分析和比较了湖南杉木中心产区会同杉木人工林不同采伐方式迹地上更新群落的组成结构和数量特征．结果表明：迹地群落中共有维管植物85科164属254种，其中乔木、灌木、藤本和草本分别为53种、85种、39种和77种；皆伐和间伐后物种多样性指数高；皆伐8a后迹地群落与皆伐2a后群落相似性较小，而与间伐8a后群落相似性较大；杉木人工林采伐迹地种类成分变更快．提出了合理经营和保护杉木林生态系统多样性和稳定性的措施．
Starting from the scientific management of Cunninghamia lanceolata plantation and the protection of natural resources management, the compositional structure and quantitative characteristics of the regeneration communities in the different harvesting patterns of Chinese fir plantation in Hunan Cunninghamia lanceolata were analyzed and compared according to the results of the investigation on location and community plots. The results showed that there were 254 vascular plants belonging to 164 genera and 85 families, including 53 species, 85 species, 39 species and 77 species. Among them, The similarity of the community after clear cutting 8a was similar to that after clear cutting 2a, but similar to that after thinning 8a. The species composition of the cutting site of Chinese fir plant changed rapidly. Proposed reasonable measures to protect and manage the diversity and stability of Chinese fir forest ecosystem.