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把退化喀斯特群落自然恢复演替过程视为群落结构、功能与顶极群落相比由低相似度向高相似度的发展过程。根据相似学原理,将茂兰地区演替系列各群落中所有的种划分为5个适应等级种组,并提出以适应等级种组为相似元,种组重要值为属性,顶极适应值为权重进行相似性分析。研究了依据群落间相似度重构自然恢复群落演替系列的方法。采用有序样本的最优分割法将自然恢复演替过程划分为6个阶段,即草本群落阶段、灌草群落阶段、灌木灌丛阶段、灌乔过渡阶段、乔林阶段、顶极常绿落叶阔叶混交林阶段。分析了各适应等级种组在自然恢复各演替阶段中的变化。讨论了演替途径复杂多样的特点。
The process of natural restoration and succession of degraded karst communities was regarded as the process of development from low-similarity to high-similarity in community structure and function compared with the climax communities. According to the principle of similarity, all the species in the succession series of Maolan area were divided into five adaptation grade groups, and the adaptability grade group was proposed as similarity element. The important value of species group was attribute, and the top adaptation value was Weights for similarity analysis. A method to reconstruct the succession series of natural restoration communities based on similarity between communities was studied. The optimal partition method of ordered samples was used to divide the natural succession and succession process into six stages: the herb community stage, the shrub-grass community stage, the shrub-shrub stage, the shrub-caving transition stage, the Qiao-Lin stage, Broad-leaved mixed forest stage. The changes of different adaptation level species in the succession stages of natural restoration were analyzed. It discusses the complex and diverse characteristics of succession paths.