EMERGY analysis for sustainability evaluation of the Baiyangdian wetland ecosystem in China

作     者：Weiqing MENG Cui HAO Hongyuan LI Meiting JU 

作者机构：College of Urban and Environmental ScienceTianjin Normal UniversityTianjin 300387China College of Environmental Science and EngineeringNankai UniversityTianjin 300071China 

出 版 物：《Frontiers of Environmental Science & Engineering》 (环境科学与工程前沿（英文）)

年 卷 期：2010年第4卷第2期

页      面：203-212页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 08[工学] 0713[理学-生态学] 

基　　金：the program of Binhai New Area wetland restoration maintained by Tianjin Scientific and Technology Commission(08ZCGYSF00200) 

主　　题：EMERGY analysis sustainability wetland ecosystem indicators 

摘      要：t This study presents a quantitative and ecological benefit evaluation of the Baiyangdian wetland in China between the years 2000 and *** of EMERGY analysis were applied to illustrate the wetland ecosystem,to evaluate the economic and environmental inputs and consequent yields,and to assess the sustainability of the Baiyangdian *** indicators for the integrated ecological and economic system,such as EMERGY yield ratio(EYR)(7.51),EMERGY investment ratio(EIR)(4.52),environmental loading ratio(ELR)(2.92),EMERGY exchange ratio(0.41),and EMERGY sustainable indicator(ESI)(2.57)were calculated,compared,analyzed,and *** non-renewable investment in Baiyangdian was greater than renewable investment,leading to the unsustainable development of the *** EYR indicated that the Baiyangdian integrated system had created huge profits for its people,while ELR and ESI revealed that human behavior has been a heavy burden on the environment,and countermeasures should be taken by the Chinese government to relieve and resolve these *** management methods were also proposed in this paper.