| Emergy analysis theory is the theory studying the ecological-economic systems structure and function of a new theory, and inaugurate a new method for quantitative analysis the ecosystem and compound the ecosystem, it takes solar emergy as unified dimension, which finds out ecosystem flows to carry on integrative unify analytically standard, and objectively announce each complicated ecosystem flows inside system of the most basic and the most hypostatic contact,resolved diversity types of emergy can not solve the accounting problems , comprehensive analysis evaluation system structure and function characteristic and the ecological-economic performance, and combine to integrate the nature and environments that the economic theories neglected nowadayses of factor the production function.This text use emergy analysis theories and method, take agricultural region milk cow industry system in Hutubi agricultural county as the research object, studied the relation of the internal structure of the agricultural county milk cow industry system in Hutubi agricultural county and it with the external world nature environment and economy.Through emergy indices analyzed the input/output and analysis the comprehensive emergy index of the agriculture region milk cow industry system for courtyard model,zone model and cattle farm model in Hutubi county, and forecast ananlysis of fodder energy value degestion energy (DE),metabolic energy (ME)and net milk cow lactating(NEL),as a result,the cattle farm model is the best;in the emergy analysis of fodder,the DE,ME,NEL of the corn silage and alfalfa are higher in average, in three kinds of corns straw, the DE,ME,NEL of Den Hai-9 are higher than SC-704 and Dong dan-7.The development which combines the actual circumstance of the region to put forward that region also adjusts to control path at the same time. For courtyard model and zone model, should use for the reference of cattle farm model , take sub- system of the milk cow farming industry as the premise to program the fodder to produce the sub-system, strengthen the system"self-organization" and "self-maintenance" functions, reduce from the importation that the system lends support to the ability outside, so not only are advantageous to lowering the energy devotion, reduce the agriculture production cost, also can make system more healthy thus with keep on the development. |
