|
Urban green space system as an element of the urban landscape, a city close to natural ecosystems, for improving the ecological quality of the urban area, to safeguard a sustainable development of the urban environment, to shape the image of the city, the urban landscape irreplaceable a huge role. In this paper, the current hot issues in the urban green space system planning studies, combined with the actual situation of the construction of urban green space system in Yongan City, combining landscape ecology principles, methods, and characteristics of urban green space system, Yong'an City Greenbelt System preliminary study, based on ecological landscape planning of urban green space system in Yong'an City, the results are as follows: (1) in accordance with the classification principles of landscape ecology Yongan city as a green landscape type classification, will be divided into green parks, production green protective greenbelts, attached green and other green spaces and other types. In 2006, for example, of Yong'an city green parks, the production green protective greenbelts, attached green and other green spaces the area were 115,35.58,9.65,222.87 and 119.67 (Unit: hm2). Visible green space system in Yongan, attached green and other green spaces occupy the main position, which is in line with the reality of tourism as a pillar industry of Yong'an City. The protective green proportion of small, but important ecological significance for the prevention of natural disasters and urban public nuisance. Green parks with the improvement of the quality of urban life, and their number has been increased accordingly. Production of green space in a relatively stable level since 2001. (2) the use of landscape diversity index and landscape evenness index, landscape dominance index, landscape pattern analysis and evaluation index of Yong'an city green space landscape pattern changes between the years of 1995-2006, the results show Yong'an City: 1995 total green area 429hm2, 32.2% of the ratio of green space per capita green space area 39.36m2, 2006 in total green area of ??Yong'an City 502.77hm2 green land rate of 38.7 percent, and per capita green area 37.68m2 total green area of ??green space rate were increased by 17.19%, 20.17 %, but the per capita green area is decreased by 4.27%, Yong'an City greening improve the level of rapid urban population growth has led to a worse level of per capita green space. 12 years, Yong'an City Greenbelt System diversity index, evenness, dominance of landscape indices changes to the 2006 0.5659,0.8092 and 0.6892, respectively, from 1995 0.4962,0.7099,0.6237, because of the diversity index increase the proportion of differences between the various types of green space is reduced, leading to increased uniformity, while the landscape dominance also increased may be substantially improved with the total area of ??greenery. (3) create both the improvement of urban ecological environment, but also to meet the landscape and recreation ornamental effect of the dual purpose of starting, and focus on the main issues of Yong'an city landscape ecology of urban green space system planning principles, indicators, and green space structure layout. On this basis, based on the analysis and evaluation of the results of Yongan City Green System Landscape ecological planning. Planning will be built along DJ parkland area within Yan Hok Yuen Xia Yang Top Mountain Park, North Tower, Turtle Mountain Park, Riverside Park, northbound Park Bridge Park, the continents Pier, Xingping Park until Scenic Taoyuandong, combined into a massive Kameyama Park area of ??approximately 180hm2, built a large green core; through the organization of the three river systems mainly blue axis and mountain green skeleton by joins green axis of the avenue, shelterbelts, green core outward to extend and expand the link and all kinds of green space within the city limits, which formed in order to \Yongan urban green space system, provide a theoretical basis for the construction and development of the city of Yong'an City.
|