Various problems such as erosion, leaching, and dispersion of tailings have occurred in abandoned mine areas. Especially, huge damage was caused by erosion of tailings by heavy rains in the research areas. Mine tailing of Sangdong tungsten contains various kind of heavy metals and Arsenic (As) exceeds more than 90 times than standard. In case this heavy metal flows into stream by erosion, serious damage is predicted. After experimenting Miscanthus sinensis growth of Mycorrhizae in comparison between infected and uninfected Mycorrhizae, plant infected by Mycorrhizae showed increased figures in average grass growth length (cm/ month), average organic body quantity (gfw/month) and average dry weight (gdw/month) by 47%, 33%, 32% respectively. Because of the small quantity of organic matter contained in the tailing of abandoned mine areas, the use of Mycorrhizae would be comparatively effective. This study suggests the use of Mycorrhizae infected plant to prevent erosion in abandoned mine waste areas.

두뇌기능을 활성화시킬 수 있는 새로운 기능성 김치를 개발하기 위하여 다양한 농도의 흑삼추출물을 첨가한 배추김치를 제조한 후 에 30일간 저장하면서 경시적으로 김치의 물리화학적 생물학적 관능적 품질을 측정하였다. 0.5~5% 흑삼추출물을 첨가한 김치의 색도를 측정한 결과, 대조구보다 L 값은 감소하고 a 값과 b 값은 증가하여 김치의 색은 암갈색~흑색을 나타내었다. 1~5%의 흑삼추출물을 첨가한 김치는 대조구보다 pH 감소 및 산도 증가가 늦게 나