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전과정평가(Life Cycle Assessment)를 이용한 관행농과 유기농 쌀의 환경성 및 외부비용 분석
임송택,이춘수,양승룡,Lim, Song-Tak,Lee, Choon-Soo,Yang, Seung-Ryong 한국유기농업학회 2010 韓國有機農業學會誌 Vol.18 No.1
This paper evaluates potential environmental impacts and external costs on rice production of Korea. The investigation is based on LCA in agricultural area which estimates inputs and outputs of rice production system in quantitative way. The results show that environmental impacts on organic rice(4.49E-08 DALY/kg) is level on 4.5% out of conventional rice(9.97E-07 DALY/kg). The external costs of organic and conventional rice are 4.04won/kg and 89.52won/kg respectively. The balance of both organic and conventional rice which is 85.48won/kg represents monetary value on improvement of environmental effects as producing organic rice.
임송택 ( Song Tak Lim ),양승룡 ( Seung Pyong Yang ) 한국축산경영학회,농업정책학회(구 한국축산경영학회) 2011 농업경영정책연구 Vol.38 No.4
Thsi study examined whether the plant factory is a sustainable alternative in Korea`s agriculture. We conducted the economic as well as environmental analysis. The results show that the production cost of plant factory lettuce is 14,432won per kg, which is about 14 times higher than the production cost of greenhouse lettuce (1,060won/kg). From the environmental perspective, energy inputs and CO2 emissions from a domestic plant factory were 63 and 58 times higher than those of greenhouse vegetable, respectively. In order to produce 1kg of plant factory lettuce, 309MJ energy that correspond to 8.7 liters of gasoline are needed, while emitting 14.6kg of CO2. According to the analysis on plant factories in Japan, although they are relatively small scale facilities, the economy of scale is not found. Moreover, the difference in yield per unit area between the old and latest facilities is not significant, and the yield per unit area seems to diminish as the cultivation area increases. It looks difficult to expect a significant increase in productivity from larger sizes or technical advances. The main reason behind the large consumption of energy and emission of CO2 is that the photosynthesis is performed with artificial light. The plant factories show a poor productivity increase compared to the input of artificial energy.
임송택 ( Song-tak Lim ),양승룡 ( Seung-ryong Yang ) 한국축산경영학회,농업정책학회(구 한국축산경영학회) 2018 농업경영정책연구 Vol.45 No.2
This article determines the optimal agricultural production level for the livestock and cultivation sectors in Korea considering the negative external effect on the environment. The mathematical programming models are used to maximize the Green GDP under relevant restrictions. The results of this study provides the basic data for nutrient management policies such as the total maximum nutrient loading system, fertilizer subsidy and the environmental tax by determining the optimal production of the livestock sector considering the cultivation area and the social environmental cost. They also provides information for fertilizer subsidy or tax policies for the cultivation sector by comparing the optimal levels to the actual inputs of fertilizer.
임송택 ( Song Tak Lim ),양승룡 ( Seung Ryong Yang ) 한국축산경영학회,농업정책학회(구 한국축산경영학회) 2013 농업경영정책연구 Vol.40 No.3
This study has defined both the concept and the category of Food Supply Industry, and estimated its value added in economic terms. Food Supply Industry come under Food Supply System. It all denotes a series of the industry in order to supply food to the consumers. The Food Supply Industry is composed of production goods industry, agricultural & marine products industry, food processing industry, restaurant industry and food supply distribution industry. Agro-life Industry is a concept of the Food Supply Industry added to Nonfood Supply Industry and amenity industry. In this study, it is carried out each industry`s added-value estimation based on the definition method. The estimated value-added of agricultural &marine products industry was 26.1 trillion won, accounted for only 2.49%of all industries as of 2009. On the other hand, the Food Supply Industry`s value-added was estimated 85.08 trillion won, contributed to 8.12% of all industries.
리뷰 : 겨울 유채의 환경성 평가를 위한 전과정평가(LCA) 방법론
남재작 ( Jae Jak Nam ),옥용식 ( Yong Sik Ok ),최봉수 ( Bong Su Choi ),임송택 ( Song Tak Lim ),정용수 ( Yong Su Jung ),장영석 ( Young Seok Jang ),양재의 ( Jae E. Yang ) 한국환경농학회 2008 한국환경농학회지 Vol.27 No.2
Life cycle assessment (LCA) is acknowledged as a valuable tool to quantify the environment impact of agricultural practice as well as final product (biodiesel) considering whole life cycle of the target product. As a preliminary research of LCA study for rapeseed (Brassica napusL.) biodiesel, the methodological issues which have to be regarded with high priority were dealt with. No life cycle inventory (LCI) based on local data are currently available for LCA of rapeseed cultivation, crushing, and conversion to rapeseed methyl ester (RME) in Korea. In this paper, the life cycle of rapeseed and methodological factors which have to be measured for building LCI of each process are provided and discussed, which are including seed, fertilizer, energy use in rapeseed cultivation environment; and crushing, RME conversion, and transportation in biodiesel production.
심교문(Kyo-Moon Shim),정지선(Ji-Sun Jeong),소규호(Kyu-Ho So),임송택(Song-Tak Lim),노기안(Kee-An Roh),김건엽(Gun-Yeob Kim),정현철(Hyun-Cheol Jeong),이덕배(Deog-Bae Lee) 한국토양비료학회 2010 한국토양비료학회지 Vol.43 No.2
전 세계적으로 지구온난화의 원인인 대기 중 온실가스 농도를 감축하는 여러 정책들이 모든 산업을 망라하여 추진되고 있다. 식량안보라는 특수성은 있지만, 농업도 예외는 아니다. 이런 취지에서 최근에 농산물의 전체 생산과정에서 발생하는 탄소배출량을 산정하고, 이를 토대로 탄소배출량이 적은 농산물 생산방식을 도입하고자하는 요구가 증가하고 있다. LCA 도구를 농업분야의 환경평가에 적용한 해외 연구 사례들을 살펴보면, 스위스는 Ecoinvent가 주축이 되어 농작물, 농업기반시설, 농자재, 농기계 등 농축산 전반에 대한 LCI D/B를 구축하여 제공하고 있고, 우리와 농업시스템이 유사한 일본은 산업연관분석을 이용하여 농업을 위한 Top-down 방식의 LCA 수행 방법론을 개발하였으며, 이를 농작물생산 방식에 따라 평가하고 농업분야에 대한 영향평가 방법론과 가중치를 개발하였다. 반면에 국내의 LCA를 통한 농업환경영향평가는 출발 단계에 있다. 따라서 농업환경에 있어 주요 인자인 비료 및 농약에 대한 환경영향을 평가하고 이를 위한 국내 비료와 농약의 흐름 모델링, 방법론 개발이 요구되며, 국내 농업 시스템을 반영한 기타 농자재, 농기계 및 농업기반시설에 대한 환경영향평가 역시 수행되어야 한다. Many policies have been implemented to mitigate the greenhouse gases in atmosphere overall of sectors. With considering the distinct characteristics of the food security, agricultural sector is no exception to this situation. To this regard, total amount of carbon which is emitted through all of the agricultural production process is calculated, and being based on this result, the demand for the introduction of agricultural production system with low carbon has been rising. Case studies on the application of life cycle assessment (LCA) technique to agricultural sector are found in many countries. For example, life cycle inventory (LCI) data bases of crop, farm infrastructure, fertilizer, farm machinery, and etc., have been constructed and provided by Ecoinvent (Swiss centre for life cycle inventories) of Swiss. In Japan, Top-down typed LCA methodology for agriculture is developed based on the inter-industry analysis, and is evaluated according to the productive method of crop. On the other hand, environmental impact assessment of agricultural system using LCA in Korea is just in the beginning stages. So it is required to assess environmental impact on agricultural fertilizer and pesticide, and to develop their flow modeling, and methodology of LCA of agricultural sector. Environmental impact assessment on agricultural materials, machinery, and infrastructure will also be carried out.