【作者】 钟薇；

【导师】 沈守云； 阳柏苏；

【作者基本信息】 中南林业科技大学 ， 园林植物与观赏园艺， 2007， 硕士

【摘要】 本文在当前怀化市争创全国生态示范市的背景下,以怀化市绿地景观为研究对象,通过对绿地现状的实地调查,运用景观生态学等相关的原理和分析方法,分析怀化市绿地斑块、绿地廊道及树种应用三方面存在的问题,以完善城市生态功能、营造特色绿地景观、提高城市环境质量、促进城市可持续发展为目标,对怀化市绿地景观生态规划进行了初步的研究和对策探讨：主要研究结论如下：1、根据现状调查分析表明,怀化市目前的绿地景观结构和格局不合理,具体表现为周边的风景林地比重偏高,道路绿地、居住区绿地面积偏少；小斑块数量占绝对优势,斑块破碎度高,公园绿地数量少,斑块面积较小,分布均匀度低,缺乏特色专类公园及社区公园的建设,街旁绿地面积较小。2、廊道密度低,绿地间连接度弱,不利于城市物种多样性保护和景观生态功能的发挥。分析怀化市绿地廊道建设中存在的问题,提出绿地廊道中道路、河流水系及生态防护林的规划对策,明确对廊道进行合理的生态规划,有利于连接城乡的景观和形成整体的生态网络基础体系。3、怀化市目前市区内应用树种种类单一,植物丰富度低；在树种比例的配置上,常绿树种、针叶树种、灌木树种比例偏低,在一定程度上造成植物层次单调,缺乏当地的植物景观特色。4、加强道路绿地、居住绿地及街旁绿地建设,改善城市绿地景观结构；提高大的绿地斑块比例,合理增加各级公园及城市广场的建设数量,扩大服务半径,完善城市绿地生态功能；加大绿色廊道建设力度,对道路、河岸及生态防护林进行合理的规划建设,提高绿地廊道的生态功能及游憩功能；以适地适树的原则,生态效益高的原则,确定合理的各类植物比例,科学选择、合理规划园林绿化的基调树种和骨干树种,突出怀化市植物景观特色。更多还原

【Abstract】 By researching into the principles and analysis of landscape ecology, this paper tries to find out the problems among the green land patch, green land corridor and tree species application based on several typical green land cases in Huaihua City. The preliminary exploration and the discussion of the urban green landscape ecological design are important for perfecting city ecological function, constructing characteristic green landscape, improving the quality of environment and accelerating sustainable development of city.Conclusions:1. According to the analysis of the current situation, the structure and pattern of the green land landscape is unreasonable. The distribution of the urban green land is disproportional. There is more public park green land especially in scenic areas but less green land occupation in the community areas. The green land is dominated by small parches and the landscape fragmentation was higher which is not favorable for constructing characteristic parks and community parks. Meanwhile, the green land area is small in community parks and public parks along the streets.2. Due to the low density of the green corridor and weakness of the green land cohesion, it is not easy to accomplish the protection of the diversity of the species in urban and development of landscape ecological design. In order to narrow the gap between urban and rural landscape and form a holistic ecological network, it is necessary to analyze the problems in the development of the green corridor, design the roads, rivers and protection forest and definitude a reasonable ecological plan for the green corridor.3. Currently, the tree species are simple in Huaihua City. Also, the proportion of evergreen, conifer and shrub is lower which is not favorable for preserving species diversities and keeping diverse landscape.4. The construction of green land among roads, residence and street side could be developed to improve structure of urban green land landscape. Meanwhile, in order to perfect ecological function in urban green land, the proportion of green land patch and the quantity of parks in all levels and urban squares should be increased reasonably. Furthermore, more roads, strands and ecological protection forest should be built, which could enhance the ecological function. Also, based on the appropriate planting and high ecological benefits principles, proportion of all kinds of plants should be decided reasonably and the main tree species should be selected and managed scientifically in order to characterize the plant landscape in Huaihua city.更多还原