수심의 정도와 식생의 유무에 따른 인공습지 토양 내 유기탄소와 질산염의 공간적 분포
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서지정보
ㆍ발행기관 : 한국습지학회
ㆍ수록지정보 : 한국습지학회지 / 12권 / 2호
ㆍ저자명 : 서주영, 송근예, 강호정
ㆍ저자명 : 서주영, 송근예, 강호정
목차
1. 서 론2. 재료 및 방법
3. 결과 및 토의
4. 결 론
사 사
참 고 문 헌
한국어 초록
Wetlands are a well known ecosystem which have high spatial-temporal heterogeneity of chemicalcharacteristics. This high heterogeneity induces diverse biogeochemical processes, such as aerobic decomposition,
denitrification, and plant productivity in wetlands. Understanding the dynamics of dissolved organic carbon (DOC)
and inorganic nitrogen in wetlands is important because DOC and inorganic nitrogen are main factors controlling
biological processes in wetlands. In this study, we assessed spatial distribution of DOC and inorganic nitrogen with
relation to the different hydrology and vegetation in created wetlands. Both DOC and nitrate contents were
significantly higher in vegetated areas than open areas. Different water levels also affected DOC contents and their
quality. Average DOC contents were 0.37 mg·g-1 in deep riparian (DR) and 0.31 mg·g-1 in shallow riparian (SR).
These results appeared to be related to the interaction between carbon supply by vegetation and microbial
decomposition. On the other hand, inorganic nitrogen contents were not affected by water level differences. This
result indicates that presence/absence of vegetation could be a more important factor than hydrology in the spatial
dynamics of inorganic nitrogen. In conclusion, we observed that vegetation and hydrology differences induced spatial
distribution of carbon and nitrogen which are directly related to biogeochemical processes in wetlands.
Keywords : hydrology, vegetation, dissolved organic carbon (DOC), inorganic nitrogen, created wetland