CAJ | 학술논문

运用能值分析方法对2007年河北省种植业生态经济系统中的投入和产出状况进行了系统分析.结果表明:总能值投入为7.97×1022sej,作物能值总产出为3.24×1022sej;不可更新工业辅助能占总能值投入的52.9%,可更新能值投入占总能值投入的比例为47.1%(可更新环境资源占20.9%、可更新有机能占26.1%),系统能值货币比率为1.98×1011sej/元,净能值产出率为0.51,环境负荷率为1.13,系统可持续发展指数为0.45,种植业生态经济系统整体的回报率较低;主要作物的能值产出依次为:玉米>小麦>蔬菜>高粱>豆类>花生.
운용능치분석방법대2007년하북성충식업생태경제계통중적투입화산출상황진행료계통분석.결과표명:총능치투입위7.97×1022sej,작물능치총산출위3.24×1022sej;불가경신공업보조능점총능치투입적52.9%,가경신능치투입점총능치투입적비례위47.1%(가경신배경자원점20.9%、가경신유궤능점26.1%),계통능치화폐비솔위1.98×1011sej/원,정능치산출솔위0.51,배경부하솔위1.13,계통가지속발전지수위0.45,충식업생태경제계통정체적회보솔교저;주요작물적능치산출의차위:옥미>소맥>소채>고량>두류>화생.
The analysis of emergy input and output of eco-economic system of planting in Hebei province in 2007 was conducted by using emergy analysis method. It showed that, the total emergy input and output of planting were 7.97×10<'22>sej and 3.24×10<'22>sej respectively. Of the total emergy input, unrenewable industrial emergy was 52.9%, and renewable emergy was 47.1% which including 20.9% of renewable environment resource and 26.1% of renewable organic emergy. The ratio of emergy and money, net emergy ratio, load ratio of environment, and sustainable development index were 1.98×10<'11>sej/yuan, 0.51, 1.13, and 0.45, respectively. Return from planting was low in general, and the emergy output of the main crops was maize> wheat> sorghum > legume > peanut.