| The deterioration of the urban environment after the industrial revolution of the 18 th century and rehabilitation and reconstruction of cities after World War II,make people realize the importance of urban green space construction.China proposed the construction of urban green space in the first of five-year plan,and included ecological civilization building as task index in the 13 th five-year plan. Guizhou Province as an advanced demonstration area of ecological civilization, attaching great importance to environmental issues within the province, environmental protection and green space construction become an important object of interest in every city.Urban green space playing an important role in improving the urban environment, Liupanshui city as the "Chinese cool city", although Construction of urban green space has made some achievements, but there still exist some problems, such As uneven distribution and imperfect system. For building a better Liupanshui City Green System, making its function play more powerfuly, providing a good living environment for urban residents, And completing the Liupanshui City "four hit" targets,The paper based on a full investigation of Liupanshui City green space, establishes Liupanshui City Green Space Database, and makes a comprehensive analysis and evaluation of the structure and function of Liupanshui City Green Space System, points out the advantages and disadvantages of green space system, explores Liupanshui City dominant landscape- the importance of the mountain green space, provides the basis for green space building. The main findings are as follows:1. Evaluation of Liupanshui city green space structureOn the basis of the findings of Greenland, the paper carried out the evaluation of urban green space structure of Liupanshui City, which benefit for a clear understanding of the status quo of urban green space distribution. After the analysis and evaluation of the type of green area built in Liupanshui, pattern, green building and vegetation types, drawing the evaluation results: Liupanshui City Greenbelt is relatively completed, but green patch is relatively fragmented, green patch boundary is simple, suffered strong human disturbance; the construction of urban green space is in the lower level in urban green space construction in the country,and Liupanshui City residential area green, green industry, green building roads does not meet the standard; due to the location impact, Liupanshui have rich vegetation types and the main woodland.2. Evaluation of Liupanshui city greenbeltBased on the data in Liupanshui City Greenbelt database,we evaluate the function of Liupanshui City Green, which can help learn urban green space and the service blind area of public green space, and provide the basis and advice for urban green space plan. After the analysis and evaluation of the social function of green areas, ecological function and aesthetics of Liupanshui greenbelt, the following results were obtained: the park accessibility appears well; Liupanshui City center miss parts of emergency shelters; dewu area and hongqiao area are the blind service of public green; mountain green water conservation function better, but water conservation green power subsidiary of difference; Green road noise is poor; Liupanshui City heat island effect is not strong; high vegetation coverage and rich vegetation types of mountain greenbelt can effectively reduce the occurrence of landslides and debris flows; Liupanshui is four seasons landscape.3.The importance of green mountains in LiupanshuiBased on the analysis and evaluation of the green structural and functional of Liupanshui City, the paper analyzes the importance of the advantages landscape- mountain greenery, which provides a theoretical basis for the planning and development of the green mountain. After analyzing the proportion of green mountains, composition and distribution, as well as green mountain in mitigating the urban heat island effect and the effect of preventing natural disasters.The main results are as follows: Mountain green area accounted for more than half of the total area of the city, which are composited of natural mountain and mountain park; O the urban heat island effect mitigation, green mountain significant effect than the flat green; The mountain greenery play a huge role in water conservation, cleaning air and preventing, weakening mudslides and landslides through absorbing water and soil reinforcement by plant roots. the Liupanshui should more tend to protect and utilize the green mountain,and reduce the destruction of the green mountain the green mountain, and Make it play a greater social and ecological benefits. |
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