Resilience Evaluation of Cultivated Land System in Taihang Mountains and Piedmont Plains:A Case Study of Shijiazhuang City
The cultivated land system resilience is closely related to the"trinity"of cultivated land quantity,quality and ecology,which is of great significance to enhance the stability of cultivated land,improve the utilization efficiency of cultivated land,and innovate the measures of cultivated land protection.This paper analyzed the connotation of cultivated land system resilience from the perspective of integrated effects of internal attributes of cultivated land system and external environment,constructed a cultivated land system resilience evaluation system based on four dimensions of production,ecology,shape and quality resilience,and systematically evaluated the cultivated land system resilience of Shijiazhuang City in the Taihang mountains and piedmont plains.The obstacle factors restricting the resilience level of cultivated land system were analyzed.The results are shown as follows.① The index range of comprehensive evaluation results of cultivated land resilience is[0.754,1.339].The resilience level showed a gradient distribution from high to low along the direction of"eastern plain,low elevation hilly land,and western Taihang mountains",with significant spatial heterogeneity.② Superior cultivated land quality and agricultural production conditions in the eastern plain determined its higher production,shape and quality resilience,but the ecology resilience of the eastern plain was weaker than that of the western mountainous land due to the large-scale input of agricultural chemicals.③ The obstacle degree of shape resilience is the highest in the criterion layer,and the obstacle degree of soil PH value,field regularity and contiguity of cultivated land is higher in the index layer,which is an important factor restricting the resilience level of cultivated land system.Low-yield cultivated land should be gradually developed and improved,land consolidation and reclamation engineering activities should be carried out,agricultural production conditions should be optimized,and grain storage should be based on land and technology.The study showed that the resilience evaluation of cultivated land system played a positive role in improving the theoretical system of cultivated land evaluation and exploring the"trinity"management and protection mechanism based on resilience,which could provide scientific criteria for promoting the sustainable use of cultivated land system.
cultivated land system resilienceobstacle factorspatial differenceShijiazhuang City
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