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Urban green space is related to important environmental factors for sustainable urban development, scientific and rational layout of urban green space landscape can enhance the operation and management of urban green space system level to guide the layout of urban land use towards a healthy, sustained human living environment development. Use of landscape ecology theory and methods to study the spatial pattern of urban green space landscape reveal urban green space ecological conditions and spatial variability of, and to provide a scientific basis for urban green space system planning and green building. In this paper, under the guidance of landscape ecology theory analysis and field research qualitative research method of combining quantitative index, based on the comment on the urban landscape pattern and the theory of ecological planning at home and abroad and its latest progress, Chenzhou City Case Study area, using GIS software Arcgis and pattern analysis software Fragstats, Chenzhou City Green Pattern Analysis and Evaluation: 1. Greenbelt Pattern Index: Overall, the uneven distribution of the green patch of Chenzhou City, a few types of green space in the area of ??distribution of dominant , but the diversity level is not high. View from the plaque size, small plaque (≤ 0.2hm2) 937 in plaque type dominates, accounting for 71.86% of the total number of patches of the landscape; From the patch types, settlements and units attached green plaque largest number, 654 plaques, accounting for 41.79% of the total number of patches of the landscape. Peri-urban green space is the share of the largest green patch type in the six categories of green space type, 306.3899 hm2, accounting for 50.64% of the total plaque area. 2. Landscape pattern of evaluation: This article diversity index, fragmentation index, fractal dimension, separation and evenness index 5 index as the pattern of evaluation indicators, using the Delphi method comprehensive quantitative evaluation of Chenzhou City Green System Landscape . Scenic woodland landscape comprehensive evaluation is excellent; peri-urban green areas and settlements and units attached green, green parks and road green space for the middle; square, green street worse. Construction of the existing problems Chenzhou green space green space landscape pattern optimization principle of guidance proposed Chenzhou City green space ecological planning concept of the program and landscape pattern optimization countermeasures: 1. Proposed the Chenzhou City, domain greenbelt landscape pattern planning framework, the framework to the final formation of a points, lines, blocks, combine the green landscape of the multi-level optimization pattern system for the target, the system consists of three green corridor, five shelterbelts, an eco-green ring, multiple punctate green space nodes. 2. Proposed the Chenzhou urban green space system landscape pattern optimization ideas, the ideas include four aspects, namely: to expand the area of ??green parks, uniform configuration green patch, strengthen the construction of green space corridor and improve the green landscape diversity. This paper uses GIS technology to study the pattern of Chenzhou city status quo greenbelt, the first of its kind in Chenzhou the greenbelt related research; previous research work completed a lot of green space system planning, provide more detailed data for future green space system planning in Chenzhou City data. On this basis, the expanded green space pattern evaluation Greenbelt Pattern Optimization of Chenzhou City, green building sustainable development not only feasible proposals, and also provide a valuable reference for other similar urban green space construction work.
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