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| DOI：10.13522/j.cnki.ggps.2017.0345 |
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| Spatiotemporal Change in Carrying-capacity of Land and Water Resources in Sichuan Province Calculated Using Fuzzy Assessment Method |
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XIAO Yuejie , YANG Zhongjian , MA Li , TANG Hong
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School of Management, Sichuan Agricultural University, Chengdu 611130, China; Sichuan Center for Rural Development Research, Sichuan Agricultural University, Chengdu 611130, China
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| Abstract: |
| 【Objective】 Quantitatively understanding the carrying capacity of land and water resources in a region is essential to their sustainable use and in this paper, we analysed the carrying capacity of land and water resources in Sichuan province. 【Method】 Using data available on economy, society, resources and environment across the province, we calculated the dynamic change and regional difference of the carrying capacity using a fuzzy comprehensive evaluation model. 【Result】 The calculated carrying capacity in the province showed a slow increase from 2005 to 2014. Consistent with the carrying capacity, the pressure subsystem, the response subsystem and the evaluation index of the state subsystem also showed an increase during the same period. Spatially, the carrying capacity was high in the east and central part of the province, while, on average, it decreased slightly from the east to the west. In all regions, there was a slight fluctuation in carrying capacity in 10 years from 2005 to 2014. In the meantime, the carrying capacity of the central plain areas and the northeast hilly areas saw a decline, while the southern hilly area and the western plateau area as well as the Panxi mountain area witnessed a rise. 【Conclusion】Since 2005, the carrying capacity of the land and water resources across the province has slightly improved, but there is still room for improvement. To improve the carrying capacity, we proposed to transform the economic development model by reforming the supply-chain, strictly controlling water allocation, implementing the land-use control system, and publicizing the importance of eco-environmental functions of the land and the water resources. |
| Key words: land and water resources; bearing capacity; spatiotemporal evolution; fuzzy evaluation; Sichuan province |
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