机构地区:[1]北京信息科技大学经济管理学院,北京100192 [2]中国科协创新战略研究院,北京100863
出 处:《中国人口·资源与环境》2016年第10期61-68,共8页China Population,Resources and Environment
基 金:青海省科技支撑计划项目(批准号:2015-GX-Q10);北京知识管理研究基地项目(批准号:15JDJGC042);北京世界城市循环经济体系(产业)协同创新中心资助项目
摘 要:对工业园区进行循环化改造,是发展循环经济、实现可持续发展的重要途径,而建立总体性、系统化的评价方法则是衡量循环化改造水平的理论支撑。现有的循环经济评价体系,在评价的系统性角度略显不足。因此,本研究以评价园区循环经济系统的演化水平为根本目标,探索系统演化的一般规律。在方法上,以复杂网络为基础模型,以江苏省某循环经济产业园区盐化工产业集群为研究对象,以集群循环化改造的4个阶段为时间尺度,以产业项目为节点,以项目间的资源、能源再循环关联为边,构建了园区循环经济系统演化的复杂网络模型,并从度分布、介数分布、聚集系数、平均路径长度、网络直径、度度相关和度介相关角度对网络特性进行了分析。结果显示:1伴随系统演化,网络的平均度分布呈现递增趋势,网络平均路径长度由2.02提高到3.58,网络直径由4提高到9,物质和能源再循环水平逐渐充分;2介数分布、度度相关和度介相关分析结果表明,伴随演化,园区循环经济系统复杂网络以优势项目为中心,项目地位存在支配、从属异构性的特征逐渐呈现;3较小的聚集系数、较短的平均路径长度和服从泊松分布的度分布特征表明,园区循环经济系统复杂网络是一个E-R随机网络。基于以上结论,未来在园区循环化改造评价中,可将网络平均度分布、平均路径长度等网络参数和表征异构性的网络结构熵纳入系统性指标中。同时,在新的工业园区开展循环化改造伊始,积极谋划,主动引导园区形成良性产业结构,避免被已有产业结构的短期效应锁定。The recycling transformation in industrial park is an important way to develop circular economy and to achieve sustainable development. The establishment of the overall and systematic evaluation method is the theoretical support for the recycling transformation. However, existing circular economy evaluation systems show defects in the systemic evaluation. Therefore, this research takes the complex network as a basic model, an eco-industrial park in Jiangsu Province as the research object, four stages of evolution as the time scale, industrial projects as nodes and the relationship of material flows and energy flows as edges to construct an eco-industrial park system' s complex network model and then analyzes the degree distribution, the betweenness, the clustering the coefficient, the average path length, the degree-degree correlation and the degree-betweenness correlation of the network. The results showd that: (1) With the system evolution, the network average degree distribution showed an increasing trend, the network average path length increased from 2.02 to 3.58, the network diameter increased from 4 to 9, and the material and energy recycle level improved. (2) The analysis on the betweenness distribution, the degree-degree correlation and the degree-betweenness correlation showed that with the evolution, the park system gradually showed a characteristic that the advantageous projects are in a dominant position, and in dependent heterogeneity. (3) Small clustering coefficient, short average path length and the Poisson distribution of degree distribution showed that the park system is an E-R random network. Based on the above conclusions, the recycling transformation in industrial parks in the future should include network parameters such as the average degree distribution, the average path length, and the network structure entropy which indicates the heterogeneous network, into systematical indicators. Meanwhile, the industrial park which intend to carry out the recycling transformation shou
分 类 号:N949[自然科学总论—系统科学]
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