种植业子系统中价值流与能量流的关系:能量、价值交叉弹性  

The Relationship between Value Flow and Energy Flow in Cropping System: the Cross Elasticity of Energy and Value

作　　者：乔颖丽[1] 孙芳[1] 王立秋[1] 徐长金[1] 

机构地区：[1]张家口农业高等专科学校,075131

出　　处：《张家口农专学报》2000年第2期27-32,共6页

摘　　要：提出能量、价值交叉弹性这一综合性指标,将农田生态系统能量转化效率和种植业经济效益综合起来,考察种植业系统结构与整体功能,并结合河北省北部旱作农业试验区一个自然村资料作出分析说明。The cross elasticity of energy and value was put forward in this paper. It was thecomprehensive indicator that we could use evaluation structure and function of cropping sys-tem. It was strongly piont that we could transfer both efficiency of energy transformation onfarmland and economic effect of cropping system into one indicator. There was an exam-ple-a small village in the experimental areas of arid agricultural in Hebei province.

关 键 词：种植业 能量产投比 价值产投比 能量价值交叉弹 

分 类 号：F326.1[经济管理—产业经济] F323.22