杭州西湖湖西景区湿地植物群落研究

发布时间：2018-10-04 18:16

【摘要】：本文以杭州西湖湖西景区湿地植物群落为研究对象,通过分析其植物群落相关指标测度,总结了植物群落多样性、复杂性、稳定性之间的关系和西湖湖西景区湿地植物群落特性,并提出优化策略。主要研究结论如下:(1)杭州西湖湖西景区湿地共有维管植物174种,隶属于77科,139属。在乔木类、灌木类、陆生草本植物、藤本植物、水湿生草本植物及竹类这六大类植物中,以水湿生草本植物、灌木类、陆生草本植物这三大类植物为主,乔灌草种类数较为平均,乡土植物种占有较明显优势。(2)运用算法复杂性和熵的原理将植物群落总复杂性拆分为组织复杂性(结构复杂性)和非组织复杂性(无序复杂性)进行了测度,对西湖湖西景区湿地40个植物群落的复杂性进行了排序。发现总复杂性的曲线与结构复杂性的曲线有着非常相似的变化趋势,说明群落的总复杂性在很大程度上受到结构复杂性的影响。同时探讨了植物群落复杂性和多样性的关系,发现复杂性受到物种丰富度和均匀度的共同影响。(3)采用了M.Godron稳定性测定方法进行群落稳定性方面的分析和评价,西湖湖西景区湿地植物群落总体稳定。同时进行了多样性、复杂性与稳定性的相关性研究,发现群落稳定性和多样性及复杂性没有表现出明显的规律性,原因是由于外界因素,特别是人为因素的干扰。(4)西湖湖西景区湿地植物群落总体与竣工时相差不大,差异主要体现在草本地被植物和水湿生植物的种类和数量变化上。群落物种的迁入和迁出与植物群落多样性、复杂性和稳定性有关,其原因可以通过生态位原理进行解释。西湖湖西景区湿地植物群落总体生态和景观状况良好,但在一些已经受到损害或具有潜在损害的地方,需要采取措施进行保护处理。
[Abstract]:In this paper, the wetland plant communities in the West Lake area of Hangzhou were studied, and the diversity and complexity of the plant communities were summarized by analyzing the relative indexes of the plant communities. The relationship between the stability and the characteristics of wetland plant community in the West Lake area of West Lake was discussed, and the optimization strategy was put forward. The main conclusions are as follows: (1) there are 174 species of vascular plants belonging to 139 genera of 77 families. Among the six kinds of plants, such as trees, shrubs, terrestrial herbs, lianas, water-wet herbs and bamboos, the three main types of plants are water-wet herbs, shrubs, and terrestrial herbaceous plants. The number of species of Arbor and shrub is more average, Native plant species have obvious advantages. (2) the total complexity of plant community is divided into organizational complexity (structural complexity) and non-organizational complexity (disorder complexity) by using the principle of algorithm complexity and entropy. The complexity of 40 plant communities in the wetland of West Lake West Scenic spot was sorted. It is found that the curve of total complexity is very similar to the curve of structural complexity, which indicates that the total complexity of community is greatly affected by structural complexity. At the same time, the relationship between plant community complexity and diversity was discussed. It was found that complexity was affected by species richness and evenness. (3) M.Godron stability was used to analyze and evaluate the community stability. The wetland plant community in West Lake is stable. At the same time, the correlation between diversity, complexity and stability was studied. It was found that the community stability, diversity and complexity showed no obvious regularity because of the external factors. Especially the interference of human factors. (4) the total wetland plant community in West Lake area of West Lake had little difference from the completion, the difference was mainly reflected in the variation of the species and quantity of herbaceous plants and hydrohygrophytes. The migration and emigration of community species are related to the diversity, complexity and stability of plant communities, which can be explained by niche principle. The overall ecological and landscape conditions of wetland plant communities in West Lake West Scenic area are good, but in some places that have been damaged or have potential damage, measures should be taken to protect them.
【学位授予单位】：浙江农林大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：Q948

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