农村生活垃圾治理模式选择研究——以陕西为例

Research on the Selection of Rural Domestic Waste Management Models: A Case Study of Shaanxi Province

  • 摘要: 针对农村生活垃圾治理模式错配引发的供需失衡问题,本研究构建乡镇分异视角下的K-meansBP神经网络模型,通过预测治理模式适配度实现科学优选。结果表明:1)基于K-means聚类将陕西省122个乡镇划分为城市近郊高密度型(24.59%)、城乡过渡中密度型(45.08%)及偏远山地低密度型(30.33%)3类,总结收集陕西省3种典型农村生活垃圾治理模式:政企合作模式、县政府治理模式和乡镇自治模式; 2)通过扎根理论提取人口密度、资源回收利用率、环境影响程度等10项指标作为模式选择的指标,揭示交互作用对模式适配度的影响机理;3)模型预测结果显示I类乡镇最适合采用的模式是政企合作治理模式,适配度为92.77%;II类乡镇最适合采用的模式是县政府治理模式,适配度为85.34%,据此提出差异化治理建议,为提升农村垃圾治理提供决策依据。

     

    Abstract: Aiming at the supply-demand imbalance caused by the mismatch of rural domestic waste management modes, this study constructs a K-means-BP neural network model under the perspective of township differentiation, and achieves scientific preference by predicting the fitness of management modes. The results show that: 1) Based on K-means clustering, the 122 townships in Shaanxi Province are classified into three categories: urban suburban high-density type (24.59%), urban-rural transition medium-density type (45.08%), and remote mountain low-density type (30.33%), and summarised to collect three typical modes in Shaanxi Province: the government-enterprise cooperation mode, the county government governance mode, and the township selfgovernance mode; 2) Through rooting theory, 10 indicators such as population density, resource recycling rate, and degree of environmental impact are extracted as indicators for model selection to reveal the mechanism of interaction effects on model fitness; 3) The model prediction results show that the most suitable model for Type I townships is the government-enterprise cooperation governance model, with a fitness of 92.77%; The most suitable model for Type II townships is the county government governance model, with a fitness of 85.34%. Accordingly, differentiated governance suggestions are made to provide a decision-making basis for improving rural waste governance.

     

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