Study On The Pattern Ecological Construction Of The Urban Greenbelt Landscape In Zhangjiajie City

As the main natural productivity of the cities,Urban green woods play an inportant role to improving the urban environment,cityscape and open space conditions,for instance,it is essential for keeping a sustainable development in the city.It becomes an inportant symbol for measuring the quality of urban ecology,quality of life of residents civilization.Based on the QuickBird image data and other geo-information,take remote sensing, global positioning systems and geographic information system technology as the main means, The purpose of this study is to extract the information of Zhangjiajie Cities green space, then,focous on the landscape pattern.By this mesures,the City green landscape Spatial Database of Zhangjiajie were established,and the current Situation of Zhangjiajie City green landscape pattern were analysis quantitativly.The results show that:the distribution of green landscape constitute of the city is uneven,the major part of the green space area is small and medium-sized,meanwhile,the large size green land is rare.The fractal dimension of 5 plaque types is between 1.2456 and 1.5788,These components of the plaque of the border have a lower degree of folding,the fragmentation index between 0.1317-0.8543,in generally,indicates that the degree of fragmentation in general level;through the use of diversity index,the largest diversity index,Richness density,relative abundance,dominance landscape,uniformity index, the study shows thatvarious types of landscap of Zhangjiajie City has a large difference status, a low level diversity and a smaller richness.Through the analysis of current situation of green landscape in Zhangjiajie City,according to the principles for ecological conservation of urban green space,the study gives some adivise on how to build a ecological conservation of urban green space in Zhangjiajie City.