Paper Info
Title
Research on the Energy Analysis of Lake Ecological Functions
Abstract
The energy flow and material flux of Poyang Lake ecosystem were quantitatively analyzed in this paper under the direction of energy analysis theory of eco-economic system established by H. T. Odum. In the process of traditional energy flow analysis, emergy values of different natures and different types can not be compared with each other or calculated easily. While based on the theory and method of energy analysis, fluxes of energy, material, value and population can be analyzed quantitatively with a uniform measurement standard. In this article, such conclusion was obtained that 4 steps necessary for the energy analysis of Lake’ s ecological benefits were that: (1) conceptual energy analysis system should be built up, which can reflect the energy analysis method; (2) energy analysis table should be drafted out and the emergy values should be calculated; (3) energy indices should be estimated; (4) wetland ecological benefits should be expatiated according to analytical tables of energy indices system and energy schemes. By collecting field investigating data and historical information, using the method listed in this article and analyzing the energy schemes and tables of lake ecosystem, we got that in 2005 the solar energy input was 2.75脳 l019sej, solar energy output was 6.90脳1020sej, the primary productivity is 4.51脳1019sej, the solar emergy values of ecological service, ecological tourism and research work in the input/output system are 7.79脳1019se,6.86脳1019sej and 2.01脳1019sej respectively, and the sum was 1.67脳1020sej. The total value of the natural resources in Poyang Lake was 1.03脳109 Em$.
Year
DOI
Venue
2009
10.1109/CIS.2009.218
CIS (2)
Keywords
DocType
Volume
natural resource,sustainable development,input output,energy flow,ecology,economic system,primary production,solar energy
Conference
2
Issue
Citations 
PageRank 
null
0
0.34
References 
Authors
0
2
Name
Order
Citations
PageRank
Li Ren101.69
Xin-yi Xiang200.34