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http://dx.doi.org/10.17663/JWR.2018.20.4.304

Effect of Paddy BMPs on Water Quality and Policy Consideration in Saemangeum Watershed  

Kim, Jonggun (Department of Regional Infrastructure Eng., Kangwon National University)
Lee, Suin (Watershed and Total Load Management Research Division, National Institute of Environmental Research)
Shin, Jae-young (Department of Regional Infrastructure Eng., Kangwon National University)
Lim, Jung-ha (Water Environment Analysis Center, Environment-friendly Agricultural Research Center)
Na, Young-kwang (Department of Regional Infrastructure Eng., Kangwon National University)
Joo, Sohee (Department of Regional Infrastructure Eng., Kangwon National University)
Shin, Minhwan (Water Environment Analysis Center, Environment-friendly Agricultural Research Center)
Choi, Joongdae (Department of Regional Infrastructure Eng., Kangwon National University)
Publication Information
Journal of Wetlands Research / v.20, no.4, 2018 , pp. 304-313 More about this Journal
Abstract
Agricultural land reclamation in Saemangeum tidal land project is mostly planned to be completed by 2020. Irrigation water for the land is required to be prepared by that time. However, water quality for the irrigation sources is barely meet the target concentration. This paper described the reduction effect of and policy consideration for best management practices (BMPs) which were fertilizer prescription by soil test (SO#1), mixed application of SO#1 and 3 (SO#2), drainage gate control (SO#3), time-release fertilizer application (SO#4), and control (CT). Reduction of paddy runoff was relatively higher in SO#3 (25%) and SO#1 (27%) while lower in SO#4 (9%) and SO#2 (7%) than that in CT. In addition, farmers promised to follow the BMP guidelines but they didn't because of the several problems caused for the BMPs implementation. Thus, it recommended developing an automated control of irrigation gate and paddy water depth and supporing farmers for NPS pollution control and irrigation water reduction.
Keywords
Paddy; BMPs; NPS pollution; Pollution load; Reduction;
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Times Cited By KSCI : 4  (Citation Analysis)
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