Urban ecological environment and greenbelt planning should rely on the quantitative analysis of ecological benefits, therefore, using RS data as its main data sources, combining information from field observation, statistic data and so on, and introducing GIS technology, a model for evaluating and predicting ecological benefits of urban greenbelt is established
As the principal part of the natural productivity of a city, urban greenbelt is one of the necessary conditions for the improvement of the urban environment, scenic style and features, and the recreation conditions as well as the guarantee of the sustainable development of the city. It is also one of the important signs for the quality of the zoology, life, and civilization of the city.
Application of CITYgreen model in benefit assessment of Nanjing urban green space in carbon fixation and runoff reduction
The ecological value of carbon fixation and runoff reduction of the Nanjing urban green space was about 177 million RMB in total.
This research can provide references for city planning and urban green space establishment and facilitate the popularization of quantitative assessment of ecological benefits of green spaces in Chinese cities.
A better design or planning of urban green space can make a major contribution to quality of environment and urban life, and furthermore can decide whether we can have a sustainable development in the urban area.
In this paper, to quantify the urban green space, a new method comprising gradient analysis, landscape metrics and GIS was developed through a case of Jinan City.