닫기
18.97.14.88
18.97.14.88
close menu
Accredited
에머지 분석을 통한 논벼 생산의 자원적 가치 평가
Emergy Evaluation of Resource Values for Rice Paddy Production in South Korea
이지민 ( Ji Min Lee ) , 김태곤 ( Tae Gon Kim ) , 서교 ( Kyo Suh )
DOI 10.7851/ksrp.2014.20.4.035
UCI I410-ECN-0102-2015-500-002108458

The purpose of this study is to analyze emergy flows of rice for evaluating the value of rice production and sustainability. Emergy analysis evaluates the sustainability of systems or processes considering all the inputs to make a product or a sevice. In this study, we analyzed the emergy flows and indices of rice productionand compared the regional emergy values using statisticcal analysis: input materials, hours per unit area(10a), and production costs. As the results, we found that the rates of external investment (EIR= 18.87) and environmental loading (ELR=21.7) are significantly high during the rice cultivation. However, emergy yield ratio(EYR) shows that rice is a valuable resource because EYR is 5.12 and environmental Sustainability IndexSI value is as low as 0.24 and it shows rice has low sustainability. This study also shows that Chungcheongnam-do has the highest SI value for rice production due to low environmental loading and abundant natural energy during rice cultivation. These results of rice emergy flows and sustainability assessments could provide a way of sustainable rice cultivation with decrease of environmental loading from fertilizer.

I. 서 론
II. 자료 및 방법
III. 분석 결과
IV. 결 론
Reference
[자료제공 : 네이버학술정보]
×