논문 상세보기

이화학적 특성과 질소 안정동위원소비를 활용한 강우시 가축사육 밀집 지역의 하천 수질 영향 평가 KCI 등재

River Water Quality Impact Assessment in an Intensive Livestock Farming Area During Rainfall Event using Physicochemical characteristics and Nitrogen Stable Isotopes

  • 언어KOR
  • URLhttps://db.koreascholar.com/Article/Detail/365679
서비스가 종료되어 열람이 제한될 수 있습니다.
한국환경과학회지 (Journal of Environmental Science International)
한국환경과학회 (The Korean Environmental Sciences Society)
초록

This study aimed to assess the impact of livestock excreta discharged from an Intensive Livestock Farming Area (ILFA) on river water quality during a rainfall event. The Bangcho River, which is one of the 7 tributaries in the Cheongmi River watershed, was the study site. The Cheongmi River watershed is the second largest area for livestock excreta discharge in Korea. Our results clearly showed that, during the rainfall event, the water quality of the Bangcho River was severely deteriorated due to the COD, NH4-N, T-N, PO4-P, T-P, and heavy metals (Cu, Zn, and Mn) in the run-off from nearby farmlands, where the soil comprised composted manure and unmanaged livestock excreta. In addition, stable isotope analysis revealed that most of nitrogen (NH4-N and NO3-N) in the run-off was from the ammonium and nitrate in the livestock excreta. The values of δ15NNH4 and δ15NNO3 for the Bangcho River water sample, which was obtained from the downstream of mixing zone for run-off water, were lower than those for the run-off water. This indicates that there were other nitrogen sources upstream river in the river. It was assumed from δ15NNH4 and δ15NNO3 stable isotope analyses that these other nitrogen sources were naturally occurring soil nitrogen, nitrogen from chemical fertilizers, sewage, and livestock excreta. Therefore, the use of physicochemical characteristics and nitrogen stable isotopes in the water quality impact assessment enabled more effective analysis of nitrogen pollution from an ILFA during rainfall events.

목차
Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 연구 대상 지역
  2.2. 강우 특성 및 강우강도에 따른 시료채취
  2.3. 안정동위원소 분석
  2.4. 기타 이화학적 분석
 3. 결과 및 고찰
  3.1. 강우강도에 따른 유기물, 질소, 인 거동 분석
  3.2. 강우강도에 따른 중금속 거동 분석
  3.3. 안정동위원소를 활용한 강우시 하천 오염원 해석
 4. 결 론
 REFERENCES
저자
  • 류홍덕(국립환경과학원 물환경연구부 유역총량연구과) | Hong-Duck Ryu (Watershed and Total Load Management Research Division, Water Environment Research Department, National Institute of Environmental Research)
  • 백운일(국립환경과학원 물환경연구부 유역총량연구과) | Un-Il Baek (Watershed and Total Load Management Research Division, Water Environment Research Department, National Institute of Environmental Research)
  • 김선정(국립환경과학원 물환경연구부 유역총량연구과) | Sun-Jung Kim (Watershed and Total Load Management Research Division, Water Environment Research Department, National Institute of Environmental Research)
  • 김덕우(국립환경과학원 물환경연구부 유역총량연구과) | Deok-Woo Kim (Watershed and Total Load Management Research Division, Water Environment Research Department, National Institute of Environmental Research)
  • 김찬식(국립환경과학원 물환경연구부 유역총량연구과) | Chansik Kim (Watershed and Total Load Management Research Division, Water Environment Research Department, National Institute of Environmental Research)
  • 김민섭(국립환경과학원 환경기반연구부 환경측정분석센터) | Min-Seob Kim (Environmental Measurement and Analysis Center, Environmental Infrastructure Research Department, National Institute of Environmental Research)
  • 신동석(국립환경과학원 물환경연구부 유역총량연구과) | Dongseok Shin (Watershed and Total Load Management Research Division, Water Environment Research Department, National Institute of Environmental Research)
  • 이재관(국립환경과학원 물환경연구부) | Jae-Kwan Lee (Water Environment Research Department, National Institute of Environmental Research)
  • 정유진(국립환경과학원 물환경연구부 유역총량연구과) | Eu Gene Chung (Watershed and Total Load Management Research Division, Water Environment Research Department, National Institute of Environmental Research) Corresponding author