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고분자유기응집제(Polyacrylamide)를 활용한 농경지 사면 토양유실 저감 효과 분석

Polyacrylamide, Its Beneficial Application of Soil Erosion Control from Sloped Agricultural Fields

김현정|김영진|김승희|이상봉|최용훈|김민영
한국농공학회 (The Korean Society Of Agricultural Engineers)|2015.09|한국농공학회논문집 (Journal of the Korean Society of Agricultural Engineers)|제57권 제5호|pp. 123-128

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참고문헌

키워드

USLErunoffPAMPolyacrylamideSediment loss
주제분류농학

초록

This study conducted a series of field experiments using soil conditioners, Polyacrylamide(PAM) and gypsum, to evaluate their effects in reducing sediment loss and surface runoff. In addition, the correction factors (K-alpha) for the erodibility factor (K) were determined to reflect the effects of PAM and PAM+gypsum in applying the USLE equation. Experimental erosion plots individually sized 10 m 2 (5 m long, 2 m wide and 1 m deep) have different slopes (10, 20 and 30%). Erosion plots were prepared for one control (C; no PAM and gypsum) and two treatments (P; PAM 20 kg/ha, PG; PAM 20 kg/ha+ gypsum 3,000 kg/ha). The amounts of soil eroded and runoff were continuously monitored from July 1 st to Oct. 31 st in 2010 and compared to each other. The amount of sediment loss from a control plot was 399.2 ton/ha and the relative reduction of sediment loss were 11.4% and 33.4% for PAM-treated and PAM+gypsum treated plots, respectively. This study also determined the K-alpha factors in the USLE equation to account for the erosion control effectiveness of PAM and gypsum application. The K-alpha factors were calculated as 0.92 for PAM-treated plot and 0.69 for PAM+gypsum-treated plot. The findings of this study revealed that soil conditioners (PAM and gypsum) could play a significant role in controlling soil erosion. In addition, the modified USLE equation using the K-alpha could provide valuable information to make better decision on establishment of best management practice for soil erosion control in agriculture.

Abstract

This study conducted a series of field experiments using soil conditioners, Polyacrylamide(PAM) and gypsum, to evaluate their effects in reducing sediment loss and surface runoff. In addition, the correction factors (K-alpha) for the erodibility factor (K) were determined to reflect the effects of PAM and PAM+gypsum in applying the USLE equation. Experimental erosion plots individually sized 10 m 2 (5 m long, 2 m wide and 1 m deep) have different slopes (10, 20 and 30%). Erosion plots were prepared for one control (C; no PAM and gypsum) and two treatments (P; PAM 20 kg/ha, PG; PAM 20 kg/ha+ gypsum 3,000 kg/ha). The amounts of soil eroded and runoff were continuously monitored from July 1 st to Oct. 31 st in 2010 and compared to each other. The amount of sediment loss from a control plot was 399.2 ton/ha and the relative reduction of sediment loss were 11.4% and 33.4% for PAM-treated and PAM+gypsum treated plots, respectively. This study also determined the K-alpha factors in the USLE equation to account for the erosion control effectiveness of PAM and gypsum application. The K-alpha factors were calculated as 0.92 for PAM-treated plot and 0.69 for PAM+gypsum-treated plot. The findings of this study revealed that soil conditioners (PAM and gypsum) could play a significant role in controlling soil erosion. In addition, the modified USLE equation using the K-alpha could provide valuable information to make better decision on establishment of best management practice for soil erosion control in agriculture.

참고문헌 (30)

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관련 논문AI추천

경사지 토양유실 방지를 위한 PAM(Polyacrylamide) 시제품의 효율성 비교평가: 실내 인공강우 실험양재의, 옥용식, 임경재, 임정은, 주진호, 최봉수, 최용범, 최중대한국환경농학회 · 한국환경농학회지2009 · 제28권 제3호경사지 밭에서 발생하는 토양유실 저감을 위한 피복재 적용박운지, 신민환, 신재영, 원철희, 임경재, 최용훈, 최중대한국농공학회 · 한국농공학회논문집2011 · 제53권 제6호경사밭 고랑 식생 및 PAM (Polyacrylamide) 멀칭에 따른 영농기 비점오염 저감효과 분석김민경, 안난희, 엽소진, 최순군한국농공학회 · 한국농공학회논문집2023 · 제65권 제4호배추와 무밭에서 발생하는 비점오염원 저감을 위한 피복재와 토양개량제 적용금동혁, 신민환, 원철희, 임경재, 장정렬, 최용훈, 최중대한국농공학회 · 한국농공학회논문집2013 · 제55권 제4호볏짚거적과 토양개량제를 이용한 강우유출 모의박운지, 신민환, 신재영, 원철희, 최용훈, 최중대한국농공학회 · 한국농공학회논문집2012 · 제54권 제2호강우 시 경사농경지 발생 탁도 저감을 위한 고분자유기응집제 주입 제어시스템 개발김민영, 김승희, 이상봉한국기계기술학회 · 한국기계기술학회지2017 · 제19권 제6호

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