Many Wild Mushrooms were collected at Mt. Eokbul areas for 2 days in July 2010. and 1 day in August 2010. Identification in the collecting field by taking photos, recording the feature of the surroundings and ecological quality and then observing internal organs through an optical microscope. They were identified and examined with references. According to the result, Species diversities are 2 division, 2 classes, 1 subclass, 5 orders, 17 familys, 30 genera and 37 species. Dominant famillies are Tricholomataceae and Poryporaceae. Dominant species are Trichaptum abietum. Resources of Wild Mushrooms were 5 species in edibility, 6 species in clulture, 8 species in toxine, 6 species in medicne, 4 species in anticancer, 12 species in ectomycorrizahe and 16 species in rotten wood. Therefore the study is aimed at providing fundamental materials required for preserving Mt. Eokbul.

This study investigated microbial communities and their diversity in a full-scale mesophilic anaerobic digester treating sewage sludge. Influent sewage sludge and anaerobic digester samples collected from a wastewater treatment plant in Busan were analyzed using high-throughput sequencing. It was found that the microbial community structure and diversity in the anaerobic digester could be affected by inoculation effect with influent sewage sludge. Nevertheless, distinct microbial communities were identified as the dominant microbial communities in the anaerobic digester. Twelve genera were identified as abundant bacterial communities, which included several groups of syntrophic bacteria communities, such as Candidatus Cloacimonas, Cloacimonadaceae W5, Smithella, which are (potential) syntrophic-propionate-oxidizing bacteria and Mesotoga and Thermovigra, which are (potential) syntrophic-acetate-oxidizing bacteria. Lentimicrobium, the most abundant genus in the anaerobic digester, may contribute to the decomposition of carbohydrates and the production of volatile fatty acids during the anaerobic digestion of sewage sludge. Of the methanogens identified, Methanollinea, Candidatus Methanofastidiosum, Methanospirillum, and Methanoculleus were the dominant hydrogenotrophic methanogens, and Methanosaeta was the dominant aceticlastic methanogens. The findings may be used as a reference for developing microbial indicators to evaluate the process stability and process efficiency of the anaerobic digestion of sewage sludge.

우리나라의 22개 지역에서 수집한 자생 바위솔속식물의 지역적으로 나타나는 변이를 구명 하기 위하여 형태적 특징을 조사하였다. 바위 솔(No. 3∼9)은 형태적으로 유사하며 , 공통적으로 엽형은 피침형, 엽두는 예철두이며, 1∼2mm의 가시를 갖는 형태적 특성을 가지고 있다. 그러므로 바위솔은 지역종간에 변이가 적은 비교적 유전적으로 안정된 종으로 생각된다. 둥근바위솔(O. malacophyllus)의 형태 특성은 엽형이 도란형이며, 엽두가 예두인 잎을 가지고 있다. 또한 가시가 없고 잎에 붉은점으로 치밀하게 구성된 테두리선을 갖는 것이 이 종에 속한 식물의 특징이다. 연화바위솔(No. 18∼22)에 속한 식물들의 잎은 예두, 둔두 혹은 원두의 엽두 형태를 가진 도란형이나 타원형으로 수집지별로 형태가 다양하다. 그러나 잎의 끝에 가시가 없고 회분빛녹색의 잎을 갖는 등 다른 군과 구별되는 특성을 지니고 있다. 포천 수집종(ll번)과 매물도 수집종인 호랑이발톱(10번)은 이 2종은 현재 명명되지 않은 새로운 종으로 추정된다.