The Research On Urban Landscape Estimating And Urban Forest In Guangzhou City

Cities are gathering the human environment, with the accelerating urbanization, urban ecological problems are more and more prominent, and understand the structure of the urban landscape grasp the development of cities, improving the urban ecological environment and creating a good living environment will play an important role. In this paper, landscape ecology and sustainable development theory as a guide, use of GIS technology with field survey in Guangzhou urban landscape classification on the basis of this urban landscape pattern analysis and evaluation, the final of the Guangzhou city will have an important impact on the urban forest landscape A useful exploration.The main content of this study are:the urban landscape elements of the classification, distribution of the urban landscape and the landscape of the types of plaque properties, and on this basis the shape of the plaque index, fractal dimension, patch density, landscape diversity index, Evenness index and the advantages of index landscape pattern analysis.The results show that:the regional landscape diversity index for the 156.4, the index for the uniformity of 0.873, both relatively low, the gap between the districts relatively large, generally formed by the centre to the outskirts of urban areas and increase the suburb Trends, but also reflects the city of Guangzhou City Centre highest, the diversity of landscape minimum, maximum advantage of the situation. In addition, Guangzhou urban landscape of the type of rich, urban forest landscape of the plaque to 11,446, accounting for 8.54 percent of the total number of plaques, the urban forest area of 2616.8 square kilometers, accounting for 35.20 percent of the total area, a landscape of the matrix; construction and Hard landscape, garden landscape and the proportion of the agricultural landscape is also larger, respectively, accounted for a total area of 18.69 percent,18.08 percent and 16.08 percent; Although the largest area of the urban forest, but extremely uneven distribution, mainly in the north-east of Guangzhou City and the northern, southern sporadic small amount of the distribution of the downtown areas of the forest mainly concentrated in the scenic areas and parks. Plaque from the shape and dimension index index, the urban forest patches for these two relatively large, it is mainly because the study area of the city in various forest landscape suburb, is more irregular nearly natural state, Disturbance of smaller, the border is more complex. In the District of Guangzhou, the results of the analysis show that the Yuexiu District, Liwan District, Luo Gang, such as the old town area most affected by man-made, the fragmentation of the landscape is also the largest, Tianhe District, Haizhu District, Huangpu District, and other times, Baiyun District, Panyu District, Huadu District, by city, Conghua City, the suburbs and exurbs human disturbances to the smallest area, generally formed by the centre to the outskirts of urban areas and the exurbs weakening trend. Through the urban landscape pattern analysis showed that the city of Guangzhou is a modern city with very high, while in Guangzhou in the process of rapid urban landscape has also had a major influence.Through the Guangzhou urban forest landscape pattern analysis and Guangzhou Urban Forest building on the basis of the status quo, in the urban forest on the space layout put forward the "one city, the wedge, with three, four," as one of the forest ecosystem network system, final Guangzhou city for forest planning, in accordance with the City, peri-urban areas and the exurbs rational model of planning and allocation.In China's urbanization process, the city's rapid development of urban areas, suburban areas and the exurbs of districts will have a profound impact. Which would create the urban landscape of the natural landscape gradually changes to the landscape of the trend, through Guangzhou's urban landscape and urban forest of the study, understand and grasp the nature of the urban landscape-the economy-the social evolution of complex ecosystem Trends, the establishment of the sustainable development of urban development patterns is of great significance.