악취 발생 저감을 위한 양돈 사육 시설 개선에 따른 비용 편익 분석
Analysis of Cost and Benefit According to Improvement of Swine Facility for Reducing Odor Emission
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초록
본 연구의 목적은 악취 발생 저감을 위해 국내에서 최근 권고되는 밀폐(무창)형 돈사와 기존 개방형 돈사의 비용 편익을 분석하여 이러한 추진 방향의 객관적 타당성을 확보하는 데 있다. 두 돈사 유형의 비용은 설치비와 운용비로 구분한 후 관련 문헌 자료와 현장 조사 결과를 근거로 추정하였고, 편익은 축산 환경 전문가들을 대상으로 한 델파이 설문 조사 기법 적용을 통해 추정하였다. 비용 편익 분석 결과, 양돈규모에 상관없이 개방형과 밀폐형 돈사 모두 편익/비용 비율이 1 초과로 추정되어 돼지 생산에 따른 경제적 이익이 창출되는 것으로 분석되었다. 하지만 소규모, 중규모, 대규모 양돈 농가 모두 밀폐(무창)형 돈사의 편익/비용 비율(B/C ratio)이 개방형 돈사보다 상대적으로 모두 높은 것으로 추정되었다. 결론적으로 기존 양돈 농가들의 인·허가 시 경제성 우위 측면뿐만 아니라 축산 악취의 효율적 관리를 위해서도개방형 돈사를 밀폐(무창)형 돈사로 변경하도록 권고해야 하며, 특히 편익/비용 비율이 상대적으로 가장높은 수치를 보인 대규모 농가인 경우 이를 이행 조치하는 것이 합리적이라 판단된다.
Abstract
This study was conducted to provide a reliable objectivity for the current government policy that open swine house is changed to enclosed swine house by cost benefit analysis. The cost of the open swine house and enclosed swine house was divided into installation and operation and then estimated based on related literature data and field survey results. The benefit was estimated by applying the Delphi survey method to livestock environmental experts. Based on the results obtained from this study, regardless of pig farm scale, both the open and enclosed swine houses were estimated to have a benefit/cost ratio (B/C ratio) of over 1, which resulted in economic benefits from pig production. It was, however, estimated that the B/C ratio of enclosed swine house in the small, medium and large scale of pig farms was relatively higher than that of open swine house. In conclusion, it is recommended that existing open swine houses be changed to enclosed swine houses in order to effectively manage pig odor as well as economic advantages in terms of legal authorization. Especially, in case of the large pig farm where the B/C ratio is the highest, it is reasonable to immediately move the existing open swine house to the enclosed swine house.
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