合肥市域生态廊道景观格局的研究-园林植物与观赏园艺专业论文.docxVIP

万方数据 Abstract With the rapid development of the city, the city is filled with too many concrete structures, people living in deteriorating environment. Peoples irrational development and utilization in the urban development process results in lost of natural element and only less vegetation patches remained in city area. Therefore, to improve the ecological environment of the city, increasing the rate of urban greening, urban ecological corridor construction is particularly important. Based on the principle of landscape ecology, Daogle、ArcGis、Erdas、Google Earth and other software were employed to make an analysis on landscape ecological corridors and its network structure in this paper. For the structural characteristics of the network, such as nodes and attached nodes on corridor, green heart, green backbone of the corridor, the internal structure of the road green corridor are analyzed as well for analysis and research. Research area covers 11429.68 km2, of which the urban area of about 925 km2 (including Chaohu Lake water area of 72.93 km2). Conclusions are as follows: The three kinds corridor were classified in the Hefei city, Gray corridor, blue and green corridor. Corridor with a total area of 984.45 km2, accounting for 8.6% of the study area; Gray corridors, corridor blue, green corridor accounted for 38.14% ,10.15%, 51.71% of the total corridor area respectively; Visible the green corridor area is the largest, where the green corridor of road reaches to 15040.28 km in long, and covers area of 416.79 km2, the density of 1.32 km/km-2. Whether length, area, or density for the green corridor of road, they are all greater than that of the river green corridor. Among the ring park corridor in the inner city accounted for only 3.88% of the total area of green corridors; Although the area of green network is 864.82 km2, and occupied only 8% of the total area of the city, but it plays a very important role in improving ecological condition; For the whole green networ