中国循环农业评价体系研究进展

Research progress of evaluation system for China circular agriculture development

  • 摘要: 循环农业的研究与实践是当前中国农业领域的热点, 如何构建一套合理的循环农业评价体系是促进循环农业发展关键问题之一。本文梳理了近年来中国循环农业评价研究的概况, 重点分析了中国循环农业评价的内容与指标体系、评价方法等。现有循环农业评价研究主要有两类: 一是宏观层面针对国家和地区循环农业发展的综合评价, 从经济与社会发展、资源减量投入、资源循环利用和资源环境安全4个方面构建指标体系评价该区域循环农业所带来的社会、经济和生态效益, 或循环农业的有效性, 此类研究占绝大部分; 另一类是针对工业园区和企业或具体产业模式、农场, 采用系统动力学、能值、生命周期评价等系统分析方法评价不同模式的物质循环与能量流动及其对环境影响, 目前这类研究的内容和方法存在较大差异, 需要进一步探讨和深化。综合分析认为, 要构建评价指标体系, 需要在进一步明确循环农业的内涵和原理的基础上, 选择有针对性的评价指标。不同的循环农业评价指标体系因为其服务的对象及目标不同, 其构成也有所不同。针对评价对象, 在国家、区域层面和园区/企业层面的评价重点应该有所区别, 同时对于微观的循环农业发展模式/技术层面, 其评价的内容和指标也应该区别于宏观层面的评价。有针对性地构建适于不同层面的循环农业评价体系, 才能为制定科学合理循环农业发展规划提供参考。

     

    Abstract: Research and practices on circular agriculture (CA) has been hotspots of Chinese agriculture development in recent years. CA plays a significant role in resource using, energy saving, emission reduction, enterprise and industry development, and farmer income improvement in China. How to build a suitable evaluation system is one of the top issues on the CA research and development. In this paper, the general progresses of CA researches were discussed, and the evaluating content, indicators and methods were summarized as well. Generally, the evaluation for CA was classified as two types. The first was macro-evaluation focusing on the national or regional scale, whose indexes were constructed base on the social and economic development, resource reduces, resource recycle and safety of resource and environment dimensions. The goal of this kind of evaluation was to determine the social, economic and ecological effects of CA development. Another kind was micro-evaluation focusing on the industrial park, enterprise, or local farm system scale, whose goal was assessment of the features of materials cycling and energy flow in CA systems, and the environment impacts as well. Many methods were introduced in this kind evaluation including system dynamic, emergy, life cycle assessment, etc. At the same time, there existed marked difference in evaluating content, indicators and methods for the micro-evaluation. Furthermore, the suitable evaluation index for different scales (national, regional, enterprise, detailed pattern or technology, etc.) were expected to further study, which should be according with the 4R rule (recycle, reuse, reduce and regulate) of CA.

     

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