Optimizing Of Green Landscapes Ec-pattern Of Zhuzhou City

Zhuzhou is an important industrial city in Hunan province of south China. With the speeding up of urbanization, the problems in ecological development have become apparent. As urban forestry development is the premise and the guarantee of sustainable growth, the research on ecological distribution of urban Greenland landscape and the analysis, the appraising and optimization designing of that will be favorable for improvement of the structure and of the function of the ecology system, which will serve right for the ecological safety and ecological development of the city.The thesis summarizes relevant theoretic basis of the Greenland system ecology and current research status of that home and abroad. Taking Zhuzhou city as an example, the author collects huge amount of spatial and attributive data about the Greenland in the diachronic way and of social economical information and makes an appraising on the synthetic benefits and landscape distribution and put forward the technology and theory of optimizing of landscape distribution. The details of which are as follows:(1) We dealt with the ikonos satellite remote sensing and the land use plot of Zhuzhou by the GIS software Mapinfo5.0. Then we summed those parameters such as quantities, area and perimeter, etc. of the landscape patches. These parameters were input into Excel 2000 for calculating some landscape pattern indexes. In such way, we carried out a quantitative landscape evaluation of Zhuzhou.(2) The results showed that the spatial pattern of Zhuzhou landscape had many problems, such as unreasonable distribution, decreased types of natural landscape, single structure and function of landscape, increased fragmentation etc.(3) According to the appraising results and existing problems, based on the theories o f landscape ecology, landscape design, plant landscape making and environment protection, the author optimizes the landscape structure distribution and the plant deployment which put great emphasis on protection for the natural ecological system, the continuity of landscape distribution and for the unitary optimization of ecological function. In the thesis, the author tries to explore the new ways to coordinate the development of economy and utility of resources so as to improve the environment quality, to realize the objective o f sustainable development and to lay foundation for the development of ecological landscape in the city.(4) The thesis puts forward the suggestions to improve the current situation such as completing the guarantee system of policy act, strengthening market regulation, perfecting the technology system, distributing the landscape reasonably and so on.Due to the complexity of the landscape ecologic system, the theories and methods on optimization is still in the groping phase, which needs to be perfected in future.