摘要
计算了小流域小麦、豌豆、马铃薯、胡麻、玉米的有机能、无机能投入和各种作物的籽粒、秸秆、根的能量产出，以此分析了各种作物的能量产投关系、种植业子系统能量流的现状与问题，并作了种植业投能结构和数量的优化分析．
The input of both organic and inorganic energy for the crops of wheat pea potatohemp and corn and their output of energy through grain straw and root wre calculated from which the relationshiop of input and output energy of each crop the current state and problems of farming systems were analysed At last the amount and structure of energy input for farming sys tem were studied with optimization analysis.
出处
《水土保持通报》
CSCD
北大核心
1996年第5期45-51,共7页
Bulletin of Soil and Water Conservation
基金
中国博士后科学基金
关键词
小流域
种植业
能量流
small watershed
farming system
energy flow
