成都城区自生植物的分布格局及其对绿地异质性的响应

城市绿地中的人工栽培植物景观已造成资源消耗过高、景观同质化等一系列问题。随着生态意识的提高，城市中可自播繁衍、无需过多养护管理同时可发挥生态效益的自生植物引起了国内外的广泛关注。成都作为公园城市建设的范本，也亟需探索出一种高韧性以及可维持较高生物多样性的植物景观模式。但目前针对成都市自生植物的相关研究鲜有报道，基础资料极为匮乏。本项目以成都中心城区不同类型的城市绿地为研究地，以均匀布样法结合典型样地法，进行自生植物调研。通过群落分析、环境条件及景观格局分析，探究其中的自生植物在不同生境及微生境中的物种资源、物种组成特征和分布格局，挖掘自生植物对绿地异质性和干扰条件的响应及适应性策略，解析分布格局的成因。根据研究结果，依托于公园城市的现状、规划及特色，制定相适宜的自生植物园林应用策略。研究预期为成都市公园城市建设中自生植物的规划设计以及以自生植物为主体的低维护荒野景观营建提供技术导则。

The planted vegetation landscape in urban green space has caused high consumption of resources and led to landscape homogeneity. With the rising ecological awareness, spontaneous plants have drawn a wide attention at home and abroad for their variety merits such as self-reproduction, low-maintenance, and have ecological benefits. As a model of Park City, Chengdu also needs to explore a plant landscape mode with high resilience and high biodiversity. However, there are few reports on the research of spontaneous vegetation in Chengdu, and the basic information is very scarce. Hence, this project will take different types of urban green space in the central urban area of Chengdu as the study site. Using the method of uniform sampling and typical plot sampling, field survey on spontaneous plants will be taken. Through community analysis, environmental conditions and landscape pattern analysis, species resources, species composition characteristics and distribution pattern of spontaneous plants in different habitats and microhabitats will be explored. The response and adaptive strategies of spontaneous plants to green space heterogeneity and interference conditions and the factors affecting their distribution pattern will be figured out. According to the research results, based on the current situation, planning and features of park city, the appropriate landscape application strategy of spontaneous plants will be formulated. Finally, this study will provide technical guidelines for the planning and design of spontaneous plants and the construction of low maintenance wilderness landscape in Chengdu park city.