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Int. J. Environ. Res. Public Health 2015, 12(10), 12889-12904;

Planning of Green Space Ecological Network in Urban Areas: An Example of Nanchang, China

1,2,* and 1,2,3,†
College of Land Resource and Environment, Jiangxi Agricultural University, Nanchang 330045, China
Key Laboratory of Landscape and Environment, Nanchang 330045, China
College of City and Tourism, Hengyang Normal University, Hengyang 421002, China
These authors contributed equally to this work.
Author to whom correspondence should be addressed.
Academic Editor: Yu-Pin Lin
Received: 17 August 2015 / Revised: 19 September 2015 / Accepted: 10 October 2015 / Published: 15 October 2015
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Green space plays an important role in sustainable urban development and ecology by virtue of multiple environmental, recreational, and economic benefits. Constructing an effective and harmonious urban ecological network and maintaining a sustainable living environment in response to rapid urbanization are the key issues required to be resolved by landscape planners. In this paper, Nanchang City, China was selected as a study area. Based on a series of landscape metrics, the landscape pattern analysis of the current (in 2005) and planned (in 2020) green space system were, respectively, conducted by using FRAGSTATS 3.3 software. Considering the actual situation of the Nanchang urban area, a “one river and two banks, north and south twin cities” ecological network was constructed by using network analysis. Moreover, the ecological network was assessed by using corridor structure analysis, and the improvement of an ecological network on the urban landscape was quantitatively assessed through a comparison between the ecological network and green space system planning. The results indicated that: (1) compared to the green space system in 2005, the planned green space system in 2020 of the Nanchang urban area will decline in both districts (Changnan and Changbei districts). Meanwhile, an increase in patch density and a decrease in mean patch size of green space patches at the landscape level implies the fragmentation of the urban green space landscape. In other words, the planned green space system does not necessarily improve the present green space system; (2) the ecological network of two districts has high corridor density, while Changnan’s ecological network has higher connectivity, but Changbei’s ecological network is more viable from an economic point of view, since it has relatively higher cost efficiency; (3) decrease in patch density, Euclidean nearest neighbor distance, and an increase in mean patch size and connectivity implied that the ecological network could improve landscape connectivity greatly, as compared with the planned green space system. That is to say, the planned ecological network would reduce landscape fragmentation, and increase the shape complexity of green space patches and landscape connectivity. As a result, the quality of the urban ecological environment would be improved. View Full-Text
Keywords: green space; ecological network; landscape pattern analysis; network structure analysis; urban area green space; ecological network; landscape pattern analysis; network structure analysis; urban area

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Li, H.; Chen, W.; He, W. Planning of Green Space Ecological Network in Urban Areas: An Example of Nanchang, China. Int. J. Environ. Res. Public Health 2015, 12, 12889-12904.

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