농경지 토양유실 및 수질오염물질 유출에 대한 침사구 조성 효과

BACKGROUND: An intensive farming system may be of the most important source for agricultural non-point source (NPS) pollution, which is a major concern for agricultural water management in South Korea. Various management practices have therefore been applied to reduce NPS loads from upland fields. T...

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Published inHanguk hwangyeong nonghak hoeji Vol. 38; no. 4; pp. 307 - 313
Main Authors 박세인, Se-in Park, 박현진, Hyun-jin Park, 김한용, Han-yong Kim
Format Journal Article
LanguageKorean
Published 한국환경농학회 31.12.2019
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Summary:BACKGROUND: An intensive farming system may be of the most important source for agricultural non-point source (NPS) pollution, which is a major concern for agricultural water management in South Korea. Various management practices have therefore been applied to reduce NPS loads from upland fields. This study presents performances of sediment trap for reducing NPS and soil loss from rainfall runoff in cropland. METHODS AND RESULTS: In 2018 and 2019, three sediment traps (L1.5 m × W1.0 m × D0.5 m = 0.75 m 3 ) and their controls were established in the end of sloped (ca. 3%) upland field planted with maize crops. Over the seasons, runoff water was monitored, collected, and analyzed at every runoff. Soils deposited in sediment traps were collected and weighed at the season end. Sediment traps reduced runoff amount (p<0.05) and NPS concentrations, though the decreased NPS concentrations were not always statistically significant. In addition, sediment traps had a significant prevention effect on soil loss from rainfall runoff in a sloped cropland. CONCLUSION: The results suggest that the sediment trap could be a powerful and the best management practice to reduce NPS pollution and soil loss in a sloped upland field.
Bibliography:The Korean Society of Environmental Agriculture
KISTI1.1003/JNL.JAKO201908071718346
http://www.korseaj.org
ISSN:1225-3537
2233-4173