Multi-function Evaluation and Optimization of Cultivated Land in Henan Province Based on Perspective of Demand and Supply
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    Abstract:

    Aiming at the confusion of supply and demand of cultivated land multi-function evaluation, a theoretical framework of multi-function supply and demand of cultivated land was put forward. The index evaluation system was constructed from two perspectives of supply and demand respectively, and the multi-function index of cultivated land was calculated by using the full array polygon graphic method,so as to analyze the spatial differentiation of the multi-functional supply and demand of cultivated land in Henan Province. According to the national strategic demand and taking the balance of supply and demand as the target, the optimal path of the balanced supply and demand of the cultivated land were identified. The results were as follows: the multifunctional supply of cultivated land was the output of its products and services. The multi-functional demand of cultivated land referred to products and services consumed by humans;the multi-functional supply and demand can be divided into five functions, i.e., production, economy, ecology, social security and landscape culture. Compared with the demand (0.723), the multi-functional supply of cultivated land (0.678) in Henan Province showed hysteresis only the landscape function was the mismatch mode of oversupply, and the largest number of cities were the mismatch between supply and demand of ecological function and social security function. The multi-functional supply and demand of cultivated land generally presented the spatial pattern of low in northwest and high in southeast;the multi-functional supply and demand of cultivated land in southeast Henan were relatively balanced;the imbalance of multi-functional supply and demand of cultivated land in mid-levels was significant. According to the matching degree of supply-demand of various functions and national strategic planning, Henan Province can be divided into three optimization paths: functional transformation area, supply promotion area and cultivated land reserve area. The conclusion showed that the types of cultivated land utilization was optimized according to local conditions, and it can provide support for “trinity conservation of cultivated land”.

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History
  • Received:June 27,2020
  • Revised:
  • Adopted:
  • Online: November 10,2020
  • Published: November 25,2020
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