[1]RONG Yuejing,ZHANG Hui,WANG Yansong.Assessment on Land Use and Biodiversity in Nanjing City Based on Logistic-CA-Markov and InVEST Model[J].Research of Soil and Water Conservation,2016,23(03):82-89.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
23
Number of periods:
2016 03
Page number:
82-89
Column:
Public date:
2016-06-28
- Title:
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Assessment on Land Use and Biodiversity in Nanjing City Based on Logistic-CA-Markov and InVEST Model
- Author(s):
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RONG Yuejing1, ZHANG Hui1,2, WANG Yansong3
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1. Nanjing Institute of Environmental Science, MEP, Nanjing 210042, China;
2. Collaborative Innovation Center of Atmospheric Environment and Equipment Technology(CICAEET), Nanjing University of Information Science & Technology, Nanjing 210044, China;
3. Liaoning Academy of Environmental Research, Shenyang 110015, China
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- Keywords:
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Logistic-CA-Markov model; InVEST model; biodiversity
- CLC:
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F301.24
- DOI:
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- Abstract:
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Adopting the international widely used model: logistic model jointing the autocorrelation on the basis of traditional Logistic binary regression, and combining the CA-Markov model based on land use data of 1985, 1995, 2005 and 2015, the land use changes of three different scenarios (natural growth situation, ecological protection and land optimization scenario) of Nanjing City in 2025 were predicted, we further used InVEST model to examine the distribution of biodiversity service function and change under the land use changes in 1985, 1995, 2005, 2015, and the distribution of biodiversity service function of year 2025. The results showed that Logistic-CA-Markov regression model Kappa value was greater than 0.80, it was a good prediction effect. There was the obvious spatial difference of land use in the different scenarios, in natural growth situation, the construction land increased rapidly according to the original rate, farm land took up seriously, the overall environment quality reduced seriously, habitat degradation was obvious. Ecological protection and land optimization scenarios for the future land control effect are good, the biodiversity service function is improved, it can provide scientific decision-making reference for the local land use planning.