期刊论文

中文

中国生态农业学报(中英文)

2096-6237

2009

17

6

1252-1258

10.3724/SP.J.1011.2009.01252

国家科技支撑计划项目

本校为第一机构

应用能值分析方法,对山西省不同农业生态类型区的发展状况,生产效率和环境负荷进行比较分析与评价.结果表明:优等类型区能值投入总量较大,集约化程度较高(能值功率密度1.67E+12 sej·m~(-2)),但人力能值投入过多(占能值投入总量的70.62%),工业辅助能值投入相对偏低,制约了人力能值的发挥,因而净能值产出率低(0.70),环境压力较大(9.33).提高该类型区生产效率的途径在于转移农业剩余劳动力,同时增加工业辅助能、特别是高科技含量的工业辅助能的投入.中等类型区工业辅助能值(占能值投入总量的23.36%)与人力能值(占能值投入总量的51.67%)配合较好,能值产出总量大,净能值产出率高(1.25),农业生产效率...

Based on emergy methods, we compared and evaluated development situation, production efficiency and environmental loading of different agro-ecological regions in Shanxi Province. The results show that in the superior agro-ecological region, total emergy input and intensive degree （empower density = 1.67E＋12 sej·m-2） are high. However, human labor emergy is very high （labor emergy ratio = 70.62%） and nonrenewable industry supplemental emergy input is low, restricting labor emergy action in the region. Thus emergy yield ratio （EYR） is low...