메뉴 건너뛰기
.. 내서재 .. 알림
소속 기관/학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
로그인 회원가입 고객센터 ENG
주제분류

추천
검색
질문

논문 기본 정보

자료유형
학술저널
저자정보
김득수 (군산대학교) 나운성 (군산대학교)
저널정보
한국대기환경학회 한국대기환경학회지(국문) 한국대기환경학회지 제27권 제3호
발행연도
2011.6
수록면
313 - 325 (13page)

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색
질문

이 논문의 연구 히스토리 (15)

초록· 키워드

오류제보하기
From October 2009 to June 2010, major greenhouse gases (GHG: N₂O, CH₄, CO₂) soil emission were measured from upland cabbage field at Kunsan (35°56′23′′N, 126°43′14′′E), Korea by using closed static chamber method. The measurements were conducted mostly from 10:00 to 18:00LST during field experiment days (total 28 days). After analyzing GHG concentrations inside of flux chamber by using a GC equipped with a methanizer (Varian CP3800), the GHG fluxes were calculated from a linear regression of the changes in the concentrations with time. Soil parameters (e.g. soil moisture, temperature, pH, organic C, soil N) were also measured at the sampling site. The average soil pH and soil moisture were ~pH 5.42±0.03 and 70.0±1.8 %WFPS (water filled pore space), respectively. The ranges of GHG flux during the experimental period were 0.08~8.40 ㎎/㎡ㆍhr for N₂O, -92.96~139.38 ㎎/㎡ㆍhr for CO₂, and -0.09~0.05 ㎎/㎡ㆍhr for CH₄, respectively. It revealed that monthly means of CO₂ and CH₄ flux during October (fall) were positive and significantly higher than those (negative value) during January (winter) when subsoil have low temperature and relatively high moisture due to snow during the winter measurement period. Soil mean temperature and moisture during these months were 17.5±1.2℃, 45.7±8.2 %WFPS for October; and 1.4±1.3℃, 89.9±8.8 %WFPS for January. It may indicate that soil temperature and moisture have significant role in determining whether the CO₂ and CH₄ emission or uptake take place. Low temperature and high moisture above a certain optimum level during winter could weaken microbial activity and the gas diffusion in soil matrix, and then make soil GHG emission to the atmosphere decrease. Other soil parameters were also discussed with respect to GHG emissions. Both positive and negative gas fluxes in CH₄ and CO₂ were observed during these measurements, but not for N2O. It is likely that CH₄ and CO₂ gases emanated from soil surface or up taken by the soil depending on other factors such as background concentrations and physicochemical soil conditions.

목차

Abstract
1. 서론
2. 연구 및 내용
3. 결과 및 논의
4. 요약 및 결론
감사의 글
참고문헌

참고문헌 (20)

참고문헌 신청

이 논문의 저자 정보

이 논문과 함께 이용한 논문

최근 본 자료

전체보기

댓글(0)

0

UCI(KEPA) : I410-ECN-0101-2013-539-000402712