[1]WANG Na,LI Manchun,CHEN Zhenjie,et al.Landscape Pattern Simulation Under the Constraint of Ecological Network in Changsha City[J].Research of Soil and Water Conservation,2022,29(03):269-275+283.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
29
Number of periods:
2022 03
Page number:
269-275+283
Column:
Public date:
2022-04-20
- Title:
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Landscape Pattern Simulation Under the Constraint of Ecological Network in Changsha City
- Author(s):
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WANG Na1, LI Manchun1, CHEN Zhenjie1, ZHANG Yanan2
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(1.School of Geography and Ocean Science, Nanjing University, Nanjing 210023, China; 2.Guangdong Urban and Rural Planning and Design Institute Limited Liability Company, Guangzhou 510290, China)
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- Keywords:
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ecological network constraint; landscape pattern simulation; CA-Markov model; Changsha City
- CLC:
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X321
- DOI:
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- Abstract:
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It is of great significance for promoting the regional environmental protection and ecological civilization construction to constrain landscape pattern simulation with the goal of protecting ecological network. Taking Changsha as a case, based on the results of ecological network optimization, we proposed a landscape suitability correction method with the direction of ecological network, and simulated the landscape pattern of Changsha City in 2035 by using the CA-Markov model integrating ecological network constraint. The results are as follows.(1)A total of 89 ecological sources, 213 ecological corridors and 87 ecological nodes were extracted in Changsha City. The ecological sources mainly included the large mountains in the east and west of Changsha City. The ecological corridors distributed along rivers or mountains.(2)In 2035, the landscape type of Changsha City will still be dominated by woodland and the area of cultivated land will decrease, forestland will increase slightly, the construction land will increase greatly.(3)By comparing the simulated landscape pattern in 2035 with or without the ecological network constraint, we found that the landscape index and the proportion of forest land in the ecological network were significantly different, which showed that the simulation of landscape pattern based on ecological network constraints could focus on protecting the ecological key areas and optimizing the landscape distribution. These research results are intended to provide reference for the spatial planning and landscape pattern optimization of Changsha City.