분포형 유역모델을 이용한 식생여과대의 오염부하 저감효과 분석 (Evaluation of Pollution Loads Removal Efficiency of Vegetation Buffer Strips Using a Distributed Watershed Model)

박민혜; 조홍래; 구본경

doi:10.14249/eia.2016.25.6.369

Evaluation of Pollution Loads Removal Efficiency of Vegetation Buffer Strips Using a Distributed Watershed Model

Journal of Environmental Impact Assessment
Abbr : J EIA
2016, 25(6), pp.369-383
DOI : 10.14249/eia.2016.25.6.369
Publisher : Korean Society Of Environmental Impact Assessment
Research Area : Engineering > Environmental Engineering

박민혜 ¹, 조홍래 ¹, 구본경 ¹

¹(주)하이드로코어

Accredited

ABSTRACT

A distributed watershed model CAMEL(Chemicals, Agricultural Management and Erosion Losses) was applied to a part of grazing grassland and vegetation buffer strip(VBS) located in Daegwanryeong, Korea. A set of scenario analyses was carried out for grassland and VBS with various combinations of VBS widths, soil textures and ground surface slopes. The simulation results indicate that annual direct runoff decreases with wider VBS and the removal efficiency of pollutants generally decrease with steeper slopes. The removal efficiency of sediment is not significantly different with VBS widths. For gentle and medium slopes(10°, 20°), the removal efficiency of TOC and TN is not significantly different with VBS widths. As for a steep slope(30°), however, the removal efficiency of TOC and TN increases with narrower VBS. The removal efficiency of TP is generally high except for medium and steep slope of sandy loam where the removal efficiency of TP increases with wider VBS. This result of TP is contrary to the results of TOC and TN due to the adsorption characteristics of phosphorus associated with fine sediment particles. It is expected that CAMEL can be used for evaluating the effectiveness of VBS to reduce non-point source pollution discharges.

KEYWORDS

montane grassland, soil texture, slope, vegetation buffer strip width, scenario analysis

Citation status

* References for papers published after 2023 are currently being built.

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Journal of Environmental Impact Assessment 2023 KCI Impact Factor : 0.51

Evaluation of Pollution Loads Removal Efficiency of Vegetation Buffer Strips Using a Distributed Watershed Model

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Citation status

* References for papers published after 2023 are currently being built.

Journal of Environmental Impact Assessment 2023 KCI Impact Factor : 0.51

Evaluation of Pollution Loads Removal Efficiency of Vegetation Buffer Strips Using a Distributed Watershed Model

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KEYWORDS

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* References for papers published after 2023 are currently being built.