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RISS 인기검색어
- 검색키워드
- 저자 : 문병철 ( Byeongchul Moon ) (검색결과 4 건)
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비교란 Lysimeter를 활용한 논 토양에서의 살충제 Fenobucarb 용탈특성 구명
오영탁 ( Youngtak Oh ),임성진 ( Sungjin Lim ),김남희 ( Namhee Kim ),양지연 ( Jiyeon Yang ),최근형 ( Geunhyoung Choi ),류송희 ( Songhee Ryu ),문병철 ( Byeongchul Moon ),박병준 ( Byungjun Park ) 한국환경농학회 2016 한국환경농학회 학술대회집 Vol.2016 No.-
This study was conducted to investigate the leaching characteristics of insecticide fenobucarb using undisturbed lysimeter. Soil horizons of sandy loam, loam, and silty clay loam lysimeter were composed of 6, 6, and 5, and clay contents were ranged from 53.1-63.2, 40.2-47.7, and 32.6-39.2 %, respectively. Bulk densities of each lysimeter were 1.38, 1.30, and 1.35 Mg/m3, respectively. Fenobucarb was treated to each lysimeter at 14 days after rice planting, and water was supplied according to rice cultivation method. Pore volumes of sandy loam, loam, and silty clay loam lysimeter were calculated to 718.9, 764.2, and 735.9 L, and pore volume numbers of supplied water for rice cultivation were 2.1, 1.6, and 1.3, respectively. Movement of fenobucarb in each lysimeter was investigated through the residue of fenobucarb in 30, 55, 85, and 125 cm soil water from topsoil and leaching water. Liquid chromatography (LC)-mass spectrometry (MS)-MS was used for fenobucarb analysis in water sample. Recovery and limit of quantitation (LOQ) of fenobucarb in water were 83.2-84.7% and 50 ng/L. Changes of moisture tension, humidity, and temperature in sandy loam, loam, and silty clay loam lysimeter was not significantly different. Weight of silty clay loam lysimeter was higher than other lysimeter because of less leaching. Leaching volume decreased with increasing clay content of paddy soil, and the volume of sandy loam, loam, and silty clay loam lysimeter were 1964.7, 1868.4, and 1265.6 L, respectively. Total leaching content of fenobucarb (treatment content 1541 mg) during experiment period in sandy loam, loam, and silty clay loam lysimeter were 9.6, 14.2, 21.7 μg, respectively. The content in three lysimeter was not significantly different. Fenobucarb in soil horizon of sandy loam, loam, and silty clay loam paddy soil were detected at 180.1, 54.5, and 0.4 μg, respectively. However, the most of fenobucarb in soil horizon and leaching water detected at the primary stage of experiment. These results showed that the movement of fenobucarb in sandy loam, loam, and silty clay loam paddy soil was very high.
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비교란 Lysimeter를 활용한 논 토양에서의 살충제 Carbosulfan 용탈특성 구명
임성진 ( Sungjin Lim ),오영탁 ( Youngtak Oh ),김남희 ( Namhee Kim ),양지연 ( Jiyeon Yang ),최근형 ( Geunhyoung Choi ),류송희 ( Songhee Ryu ),문병철 ( Byeongchul Moon ),박병준 ( Byungjun Park ) 한국환경농학회 2016 한국환경농학회 학술대회집 Vol.2016 No.-
This study was conducted to investigate the leaching characteristics of insecticide carbosulfan using undisturbed lysimeter. Soil horizons of sandy loam, loam, and silty clay loam lysimeter were composed of 6, 6, and 5, and clay contents were ranged from 53.1-63.2, 40.2-47.7, and 32.6-39.2 %, respectively. Bulk densities of each lysimeter were 1.38, 1.30, and 1.35 Mg/m3, respectively. Carbosulfan was treated to each lysimeter at 14 days after rice planting, and water was supplied according to rice cultivation method. Pore volumes of sandy loam, loam, and silty clay loam lysimeter were calculated to 718.9, 764.2, and 735.9 L, and pore volume numbers of supplied water for rice cultivation were 2.1, 1.6, and 1.3, respectively. Movement of carbosulfan in each lysimeter was investigated through the residue of carbosulfan in 30, 55, 85, and 125 cm soil water from topsoil and leaching water. Liquid chromatography (LC)-mass spectrometry (MS)-MS was used for carbosulfan analysis in water sample. Recovery and limit of quantitation (LOQ) of carbosulfan in water were 101.1-106.4% and 50 ng/L. Changes of moisture tension, humidity, and temperature in sandy loam, loam, and silty clay loam lysimeter was not significantly different. Weight of silty clay loam lysimeter was higher than other lysimeter because of less leaching. Leaching volume decreased with increasing clay content of paddy soil, and the volume of sandy loam, loam, and silty clay loam lysimeter were 1964.7, 1868.4, and 1265.6 L, respectively. Total leaching content of carbosulfan (treatment content 1541 mg) during experiment period in sandy loam, loam, and silty clay loam lysimeter were 30.7, 19.4, 23.5 ng, respectively. The content in three lysimeter was not significantly different. However, carbosulfan in soil horizon of sandy loam, loam, and silty clay loam paddy soil were detected at 2222.1, 2146.0, and 166.3 ng, respectively. These results showed that the movement of carbosulfan in sandy loam, loam, and silty clay loam paddy soil was very low, and the movement in silt clay lam paddy soil was relatively lower than sandy loam and loam paddy soil.
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비교란 Lysimeter를 활용한 밭 토양에서의 살충제 Chlorpyrifos 용탈특성 구명
윤효인 ( Hyoin Yoon ),임성진 ( Sungjin Lim ),오영탁 ( Youngtak Oh ),구명화 ( Myounghwa Ku ),주형곤 ( Hyeonggon Joo ),이민호 ( Minho Lee ),최근형 ( Geunhyoung ),류송희 ( Choi Songhee Ryu ),문병철 ( Byeongchul Moon ),박병준 ( Byungj 한국환경농학회 2017 한국환경농학회 학술대회집 Vol.2017 No.-
This study was conducted to investigate the leaching characteristics of insecticide chlorpyrifos in upland soil using undisturbed lysimeter. Soil horizons of sandy loam, loam, and silty clay loam lysimeter were composed of 6, 6, and 5, and clay contents were ranged from 5.0-12.0, 7.0-12.0, and 25.0-37.0%, respectively. Bulk densities of each lysimeter were 1.40, 1.41, and 1.45 Mg/m3, respectively. Chlorpyrifos was treated to each lysimeter at 14 days after Chinese cabbage planting, and water was supplied according to Chinese cabbage cultivation method. Pore volumes of sandy loam, loam, and silty clay loam lysimeter were calculated to 718.9, 701.9, and 679.3 L, and pore volume numbers of supplied water for Chinese cabbage cultivation were 0.48, 0.53, and 0.38, respectively. Movement of chlorpyrifos in each lysimeter was investigated through the residue of chlorpyrifos in 30, 55, 85, and 125 cm soil water from topsoil and leaching water. Liquid chromatography (LC)-quadrupole time of flight (QTOF)-mass spectrometry (MS) was used for chlorpyrifos analysis in water sample. Recovery and limit of quantitation (LOQ) of chlorpyrifos in water were 95.0-102.1% and 0.01 μg/L. Changes of moisture tension, humidity, weight, and temperature in sandy loam, loam, and silty clay loam lysimeter was not significantly different. Leaching volume decreased with increasing clay content of upland soil, and the volume of sandy loam, loam, and silty clay loam lysimeter were 343.1, 372.3, and 256.3 L, respectively. Total leaching content of chlorpyrifos (treatment content 770.5 mg) during experiment period in sandy loam, loam, and silty clay loam lysimeter were 0.028, 0.034, and 0.024 mg, respectively. The content in three lysimeter was not significantly different. However, chlorpyrifos in soil horizon of sandy loam, loam, and silty clay loam upland soil were detected at 307.0, 191.3, and 137.6 μg, respectively. These results showed that the movement of chlorpyrifos in sandy loam, loam, and silty clay loam paddy soil was very low because the pesticide was steadily detected in soil horizon and leachate at 150 days after treatment.
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