论文部分内容阅读
在阐明马尾松林的形成过程和群落结构的基础上，从森林生态系统的结构与功能角度，揭示了我国南 方马尾松林生态系统的退化特征，主要表现在：（１）物种多样性丧失，（２）调节小气候效能低，（３）蓄持水分功 能，（４）地力衰退严重，（５）群落结构不稳定。同时，也充分反映了马尾松林退化生态系统的脆弱性。为促进马 尾松在我国南方能够持续稳定地发展，必须予以科学地改造。文中就优化群落结构、树种选择配置和栽种配 套技术３个层次的改造分别进行了较详细的阐述。
Based on the elucidation of the formation process and community structure of Pinus massoniana forest, the degradation characteristics of Pinus massoniana forest ecosystem in southern China were revealed from the perspectives of the structure and function of forest ecosystem. The main features were: (1) the loss of species diversity, (2 ) Regulating microclimate efficiency is low, (3) Water retention function, (4) Severe soil degradation, and (5) Unstable community structure. At the same time, it also fully reflects the fragility of Pinus massoniana degraded ecosystems. In order to promote the sustainable development of masson pine in the south of our country, it must be scientifically reformed. In the paper, the optimization of community structure, tree species selection and configuration and planting supporting technology three levels of the transformation were described in more detail.