Impacts of Land Use Change Evaluation on Habitat Quality Based on CA-Markov and InVEST Models—Taking Fuzhou New District of Fujian Province as an Example
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    Abstract:

    [Objective] This paper studies the land use change in Fuzhou New District of Fujian Province from 2000 to 2015, forecasts the land use pattern in 2030, analyzes the habitat quality change in 2000-2030, and compares the predicted results with the overall planning of the new district, in order to provide a reference for the rational use of land resources in the later stage of the new district.[Methods] Taking Fuzhou New District of Fujian Province as an example, based on the data of land use in 2000 and 2015, which was interpreted by Landsat_ETM+ and Landsat_OLI remote sensing image, the spatial analysis model of land use change was used to analyze the dynamic change of land use in Fuzhou New District, and the CA-Markov model was used to predict the land use pattern in 2030. On this basis, the past, present and future habitat qualities in the new district were further evaluated by the InVEST model.[Results] ① During 2000-2015, the cultivated land, forest land, water area and construction land in Fuzhou New District changed rapidly, the change of grassland and sea area was relatively small, and the change of unused land area was relatively small, but the transfer in and out was more intense; ② CA-Markov model prediction showed that the change trend of land use in the study area in 2015-2030 was basically the same as that in 2000-2015. In addition to the increasing trend of unused land, the construction land and ecological land showed the trend of rapid expansion and continuous reduction respectively; ③ From 2000 to 2030, a large number of cultivated land, forest land, grassland and water area in the study area transformed into construction land, resulting in the increase of threat sources and further reducing the habitat quality.[Conclusion] Due to the rapid expansion of construction land in Fuzhou New District, the quality of habitat in the area is seriously reduced. We should strengthen ecological conservation, reasonably control the growth of construction land, and avoid the further deterioration of habitat quality. The boundary of construction land in 2030 land use planning should be taken as the boundary of restricted construction area, and the predicted result should be taken as the boundary of permitted construction area, so as to improve the intensive utilization of construction land.

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黄康,戴文远,黄万里,欧惠,胡航箫.基于CA-Markov和InVEST模型的土地利用变化对生境影响评价——以福建省福州新区为例[J].水土保持通报英文版,2019,39(6):155-162

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History
  • Received:April 12,2019
  • Revised:May 17,2019
  • Adopted:
  • Online: January 17,2020
  • Published: