- 중금속 오염토양에서 두과 녹비작물의 단기재배 및 환원이 토양 화학성에 미치는 영향
- ㆍ 저자명
- 김민석,민현기,이병주,김정규,이상환,Kim. Min-Suk,Min. Hyungi,Lee. Byeongjoo,Kim. Jeong-Gyu,Lee. Sang-Hwan
- ㆍ 간행물명
- 한국환경농학회지
- ㆍ 권/호정보
- 2014년|33권 3호|pp.155-163 (9 pages)
- ㆍ 발행정보
- 한국환경농학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
BACKGROUND: Recent studies for heavy metal stabilization in soil were mainly focused on finding out new materials and its efficiency. But, such a stabilization method can cause disturbance to soil, leading improper environment for agriculture. The object of this study was to demonstrate the effect of the incorporation of green manure crops on heavy metal-contaminated soil. METHODS AND RESULTS: Soil contaminated with heavy metals was collected from the agricultural soils affected by the abandoned mine. Lime stone was selected and treated to contaminated soil. Three kinds of legume green manure crops; Alfalfa (Medicago sativa), Hairy vetch (Vicia villosa), Red clover (Trifolium pratense) were subsequently cultivated in greenhouse condition. It was found that lime stone increased soil pH and decreased the amount of heavy metal absorption by green manure. The application of green manure residues on soil increased soil pH and inorganic nitrogen. CONCLUSION: The C/N ratio of three green manures was low, indicating fast decomposition rate, resulting in nitrogen supplement, consequently. Considering the point that the soil was used for agricultural purpose, it was recommended that hairy vetch and red clover were preferred. Nevertheless, the heavy metal availability was also increased. Thus, it seemed that further study was needed to confirm that how long maintain a phenomenon.