基于能值分析的滨海湿地生态系统服务价值定量化研究进展

在滨海湿地生态系统服务价值评价中,能值方法克服了传统经济学方法的一些不足,对评价沿海地区发展的可持续性具有重要意义,并成为近十年来环境经济学和生态经济学研究的热点问题。综合国内外滨海湿地生态系统服务价值能值评价的研究进展,就滨海湿地生态系统的供给、调节、文化和支持服务价值的能值估算方法进行了分析。在此基础上,指出了目前该方法应用于滨海湿地生态系统服务价值评价主要存在能值转换率的选用不一致、生态系统服务价值的能值估算方法需要完善、能值分析所应用的滨海湿地类型较少、缺少对人类活动引起的生态系统服务能值变化的评价及检验评价结论正确性的标准等不足,并提出了进一步的研究方向。

ADVANCES IN EVALUATION OF COASTAL WETLAND ECOSYSTEM SERVICE VALUE BASED ON EMERGY ANALYSIS

Emergy analysis method overcomes some shortcomings of traditional economic valuation in the evaluation of coastal wetland ecosystem service value,which has important significance for sustainable evaluation of coastal area development and makes it a hotspot in the fields of environmental economics and ecological economics during the last decade.After reviewing the research results,this paper analyzed the emergy evaluation of coastal wetland ecosystem service value from four aspects,including provision,regulation,culture and support.On this basis,several main application deficiencies of this method applied to the evaluation of coastal wetland ecosystem service value were pointed out,which were the inconformity of emergy transformity selection,further improvement in emergy estimation methods,limited application of emergy analysis in various kinds of coastal wetland,the lack of assessment of hum an-induced changes in ecosystem service value as well as the validity criterion of emergy evaluation results.Besides,the further study directions have been proposed.