Adaptability of Human-Land System under Disturbance of Soil Erosion of Heilongjiang Province
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    Abstract:

    Heilongjiang Province as the starting point, the adaptability of the regional human-〖JP〗land system was analyzed from the perspective of production-living-ecological, and human-land system restoration schemes were proposed based on different restoration priorities. Firstly, on the basis of summing up and sorting out the connotation of adaptability and integrating the theory and methods of adaptation, a framework for adaptive analysis based on risk disturbance was proposed, which decomposed system adaptability into four aspects: disturbance, impact, response, and capability. Starting from the disturbance of soil erosion risk, a systematic adaptability evaluation index system and evaluation model were constructed. Secondly, the range standardization method, Kriging interpolation method, CAI Chongfa method, and DEA-CCR model were used to process the data, and the soil erosion equation was used to measure the soil erosion risk. The adaptation evaluation model was used to calculate the adaptation index, analyze the soil erosion risk and the adaptive distribution of the human-land system. Finally, a human-land system restoration scheme based on the combination of different restoration priority modes was proposed. The results showed the area of soil erosion risk area in Heilongjiang Province was 13.6661 million hm2, accounting for 85.74% of the area of cultivated land in the region, and the scales of the high, middle and low-level risk scale were 3.2402 million hm2, 5.9633 million hm2 and 4.4626 million hm2. Adaptation areas for high-level and high-level human-land systems suitability areas were distributed in the northeast of the Sanjiang Plain and the southeast of the Songnen Plain, middle levels were distributed in the Daxing’an Mountains and the southern area of the Songnen Plain, and low and lower levels were distributed in the southeast mountains and Northern Songnen Plain. The research formed a human-land system restoration scheme based on different restoration priority combination modes, of which only one kind of human-land system restoration scheme existed in 53 regions, and the remaining 27 areas formed different human-land system restoration schemes under different priority combination modes. The research result provided a variety of options for the repair of regional human-land systems.

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History
  • Received:December 24,2019
  • Revised:
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  • Online: September 10,2020
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