东居延海生态系统服务功能价值的能值分析

在了解东居延海湿地功能结构特征的基础上,根据生态学基础理论,将湿地生态系统服务功能划分为社会—经济—生态3个方面,结合湿地功能表现效果,运用能值分析方法,建立并量化湿地功能价值指标评价体系,定量分析了各功能价值的能值。研究结果表明:东居延海湿地总价值为1.56×1020sej,其中社会价值2.41×1019sej、经济价值2.68×1019sej、生态价值1.04×1020sej,湿地能值货币价值为2.12亿元,单位面积湿地价值为453.86万元/km2,是青海湖湿地价值的1.16倍。东居延海的存在对额济纳旗地区生态环境的恢复及改善西北地区盐碱化和荒漠化等生态问题具有重大意义。

Analysis on Energy Value of Service Function of East Juyan Lake Wetland Ecosystem

Based on understanding the structure function of the East Juyan Lake wetland,service function of the Wetland Ecosystem was divided into three aspects: society,economy and ecology according to the ecology theory.The evaluation index system of the wetland function value was set up by combining the wetland function performance,and the value of each function was quantified by energy analysis.The results showed that the total value of the East Juyan Lake wetland was 1.56×1020sej,and the social value was 2.41×1019sej,economic value was 2.68×1019sej,ecological value was 1.04×1020sej.And the energy monetary values of the wetland was RMB 2.12 billion,the wetland value of unit area was 453.86 million RMB per km2,which was 1.16 times of the Qinghai Lake wetland value.It is very important for the East Juyan Lake wetland to recover the environment in Ejina Banner and improve the northwest ecological problems such as the salinization and desertification etc.