适用于循环农业系统评价与调控的能值方法改进及实证研究

我国循环农业发展快速、模式多样，但理论研究对模式创建的科学指导仍显不足，需要构建一套合理可行的循环农业系统评价与调控方法，推动我国循环农业模式创建从主要依靠农业生产经验向依靠定量化的系统分析转变，以实现各地区循环农业系统最优的生态经济效果。前期研究表明，国际生态经济学前沿的能值分析方法相对于其他方法，能够有效地评价循环农业生态经济系统的可持续性并进行优化调控，但也发现该方法在具体应用过程中存在循环能流计算规则不一致、本地化参数库不足、系统投入分类原则模糊、指标体系缺少针对性等局限。因此，本项目拟通过能值计算规则和资源分类原则的理论原理研究、能值转换率参数本地化校正、评价指标体系设计，构建适用于循环农业系统评价与调控的能值方法框架并进行案例验证，以期为我国各地区循环农业模式创建与优化提供科学评价方法。

The development of circular agriculture in China is rapid and diversified, but the scientific guidance on the creation of circular agriculture model is still insufficient. Therefore, it is necessary to build a set of feasible method for the ecological economic evaluation and regulation of circular agriculture system. It will promote the transformation of the creation of circular agriculture model from relying primarily on production experience to the quantitative system analysis. This study intends to introduce emergy analysis method into the study of circular agriculture. According to the characteristics of agricultural ecological economic system in China, the limitation of methodology of emergy method will be improved by improving calculation rules of recycling energy flows, constructing localization parameter database, defining system input classification principle, designing the evaluation index system, to build a suitable framework for evaluation and regulation of the circulation agriculture system. Then, a typical circular agriculture mode in China will be analyzed by using the improved emergy framework in the study. The research will provide a reference for the creation and optimization of circular agricultural models in various regions of China, and promote the development of circular agriculture in China.