Energy Value Evaluation Analysis of Russula UnderplantingMode Project in Datian County

By use of the energy value analysis method and the energy value conversion ratio, the various energies and materials input and output involved in the Datian CountyRussula Underplanting Mode of the Sanming City were all converted to the unified standard--energy value. A generalized map for energy value system was drawn and the energy value analysis table is made. And seven energy value indicators were selected to establish the energy value evaluation system so that an analysis can be made of the system in aspects like the input structure, environmental pressures, economic efficiency and system capacity for sustainable development from 2011 to 2014. It was found that the system's four years' average energy self-sufficiency ratio(ESR)was 0.61, indicating a rather high local resource contribution degree; the environmental loading ratio(ELR)was 0.85, indicating a rather light pressure upon the environment; the environmental exchange ratio was 4.10, indicating that the system achieved a very high real benefit in market transactions; the energy index for sustainable development(EISD)was 6.10, the social and economic benefits were high and the sustainable development was good under the system per unit environment pressure.