인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2014.6
- 수록면
- 116 - 116 (1page)
이용수
초록· 키워드
Nitrogen (N) deposition is a commonly recognized threat which aroused concerns for negative impacts on ecosystems and dramatically increasing amount. Microbial processes driving N cycling are hot topics in wide ranges under N deposition, abundances of nitrogen functional genes (NFGs) were usually used to represent N transformation rates, nevertheless field experimental N depositions were mostly conducted through applying N plentifully once or twice which may cause substantially different predictions on ecosystems compared with natural deposition. In order to close to true effects of N deposition and test potential mis-estimate of conventional N application on N turnover, 6 N addition rates (0-50g N m2yr-1) were used to represent variability of N deposition in diverse patterns, and applied into field monthly and half-yearly to simulate natural atmospheric N deposition and to act as conventional N application respectively to quantify abundance shift of nitrogen functional genes (NFGs) involved in N transformation, including nifH for nitrogen fixation, amoA of bacterial (AOB) and archaeal (AOA) for ammonia oxidation, narG for nitrate reduction; nirS and nirK for nitrite reduction, and nosZ for nitrous oxide reduction, after 3 years’ experimental N deposition. The N application amended s ... 전체 초록 보기
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