农业生态系统能流分析方法的探讨

An Approach to the Analytical Methods for Energy Flow in Agroocosystem.

我们在北京市房山区窦店村从事“京郊平原以生态为中心的农业综合发展研究”课题的过程中,感到目前关于农业生态系统能流的计算方法难以准确揭示该村农业进程的内在规律。于是,对能流的计算方法进行了反复思考和探索,提出的方案不但简化了农业生态系统能流的计算与分析,而且有助于认识窦店村农业现代化的进程,准确地评价该村农业生态系统,并正确地指导农业生产。

Based on a vast amount of data accumulated during past 11-years case study in Doudianvillage in the suburb of Beijing,this paper gives a new design for the current method ofcalculating and analysing energy flow in agroecosystem.An identical criterion,the energyconsumption,is used in the new method for various items of energy input(especially fororganic manure,straw/stalk and seed).It simplifies the calculation and analysis of energyflow in agroecosystem.