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针对传统能量分析和经济分析方法无法合理评价生态经济系统内不同种类的能量或物质真实贡献的局限性,引入生态经济学的能值分析方法,以能值为量纲核算系统的能量流、物质流及货币流,建立能值指标体系,量化、评价系统发展所处的阶段和程度,为区域水资源生态经济系统可持续发展评价提供新的手段和方法.郑州市实例应用显示,郑州市水资源生态经济系统能值可持续指标为0.82,处于消费型阶段,水资源人口承载力为83万人,远远低于实际人口数,水资源压力很大,郑州市水资源生态经济系统尚未进入可持续发展阶段.
In view of the limitation that traditional methods of energy analysis and economic analysis can not reasonably evaluate the true contributions of different kinds of energy or material in eco-economic system, the paper introduces the method of emergy analysis of eco-economics and the energy flow and matter Flow and currency flow, establish the index system of emergy value, quantify and evaluate the stage and extent of the development of the system, and provide new means and methods for the evaluation of sustainable development of regional water resources eco-economic system.Zhengzhou City, The index of emergy sustainability of resource eco-economic system is 0.82, which is in consumption stage. The carrying capacity of water resources is 830,000 people, which is much lower than the actual population. The pressure of water resources is very high and the eco-economic system of water resources in Zhengzhou has not yet entered Sustainable development stage.