基于能值分析的黄河口滨海湿地生态价值评价

The Economic Value of Yellow River Coastal Wetland Based on Emergy Evaluation

应用H.T.Odum创立的系统生态学能值理论和分析方法,对黄河口滨海湿地生态经济系统价值进行了科学的定量评价。结果表明:可更新资源能值为3.16×1020sej,不可更新资源能值为2.94×1020sej,社会经济反馈能达3.37×1021sej。在各项系统能值产出中,生态系统服务能值为8.54×1022sej,在资本产出项中比重最大,说明黄河口滨海湿地生态服务功能非常巨大;水产品次之,太阳能值为1.47×1022sej,说明黄河口湿地具有很大的产品输出价值;初级生产力为1.95×1020sej,水禽、浮游动物、底栖动物资源产出分别为3.37×1021sej、2.59×1021sej、1.06×1021sej,生态旅游和科研工作太阳能值分别为1.26×1020sej、3.87×1020sej。在此基础上,建立了湿地能值综合指标评估体系,得出黄河口滨海湿地生态经济系统运行态势较好,能值产出效率较高,在滨海湿地各种产业模式中具有较大的优势,但负面效应凸显。通过分析可持续能值指标,为黄河口滨海湿地实现可持续发展提出建议。

The economic value of Yellow River coastal wetland was evaluated by ecological emergy theory and methods established by H.T.Odum. The result showed that： renewable energy resources was 3.16×10^20 sej, non-renewable energy resources was 2.94×10^0 sej, socio-economic feedback reached 3.37×10^21sej. Among the various emergy output, the value of ecosystem services was 8.54×10^22 sej, which was the largest proportion of capital-output, indicating the ecosystem services of Yellow River coastal wetland was enormous; the following part was aquatic products and the emergy value was 1.47×10^22 sej, which indicated the Yellow River coastal wetlands had great product-output value; the primary productivity was 1.95×10^20 sej, the emergy value of waterfowl, zooplankton and benthos were 3.37 ×10^21 sej, 2.59×10^21 sej and 1.06×10^21 sej, respectively; eco-tourism and research work value were 1.26×10^20 sej and 3.87 ×10^20 sej, respectively. On this basis, a comprehensive index of wetland emergy evaluation system was established, and the eco-economic system of Yellow River coastal wetland was found working better, having higher efficiency of output and greater advantages in various industrial modes of coastal wetlands, while the negative effect was highlighted. In a word, this study analyzed the indicators of sustainable energy, and provided recommendations for sustainable development of Yellow River coastal wetlands.