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嚴大翼,安烈 전북대학교 농업과학기술연구소 1990 農大論文集 Vol.21 No.-
The area of reclaimable tideland distributed in southwestern Korea peninsula is approximatly 442.000ha, The study was made to figure out Changing process of soil properties after reclamation. And the result of the study for silt clay Loam ( SiCL) soil are following as physical reclamation maturity was developed. 1. In the topographical distribution of reclaimable tideland, subtidal zone was mainly distributed in the Jeonbuk area, Intertidal zone in the Jeonnam area, and saltmash in the Gyeonggj area. 2. The Gyeonggj and Jeonnam area showed coarse silty soil, in the Jeonbuk area Coarse loamy - sandy, and in the Chungnam Various soil types. 3. n -factor· was 1-4~2.0(virturally unmaturity) which proportional to the submersion time of the area. While n-factor was above 2.0(unmaturity) where the submersion time is longer. n-factor was affected by clay and water content. 4. As reclamation maturity was developed, soil structure changed in progressive sequence from puddle→massive→subangular blocky→prismatic structure. 5. Coneresistance was increased as water contents decreased at the 1st year of the study it shows 1.1 kg/cm2, and at the 3th year the it increased up to 2.4kg/cm2. 6. Vertical penetration depth of, surface crack was reduced as the depth of soil was thicker while horizontal penetration was increased. 7. Anticipated desalinigation period was calculated by vandal Molen equation for safe rice farming. It will be seven years for silt in Gyonggi province. eight years for fine silt Loam in Chungnam, three years for sandy soil in Jeonbuk and ten years for silt clay Loam in Jeonnam province. 8. Test result of water holding capacity were following. Available water contents was 3.6% for Sandy soil, 9.3% for the Loam soil, 17.4% for the Silt Loam soil and, 23.3% for Siltclay loam were evaluated and it was in-creased according to the amounts of clay, silt and organic matter contents.
최선화,안열,오종민 경희대학교 2005 環境硏究 論文集 Vol.14 No.-
This study was carried out to evaluate of water purification in oxidation pond with filaments algae mat. It is the water treatment process in the small rural streams to remove the organic materials and nutrients. We used the filaments algae mat(FAM) which selectively predominate to prevent the additional contamination by algae outflow. The removal efficiencies of COD, SS, T-N and T-P in oxidation pond with filaments algae mat were -2.5%, 84.7%, 63.9% and 89.2%, respectively. The removal efficiencies of T-N and T-P which are nutrients index were high. Results of this study would help us to determine the possibility of using the water treatment on the contaminated small rural streams.
이승헌,김경만,안열,Lee Seung Heon,Kim Kyung Man,An Yeoul 한국관개배수위원회 2004 한국관개배수논문집 Vol.11 No.2
This study was carried out to obtain the desalinization effect of saline-sodic soils as water pending condition. Three soils with different salinity were collected and packed at 115000a pot. With artificial 1,000 mg/L water made of sea salt, three cases w
김형중,윤경섭,안열,이광식,Kim Hyung Joong,Yoon Kyung Sup,An Yeoul,Lee Kwang Sik 한국관개배수위원회 2004 한국관개배수논문집 Vol.11 No.2
The water quality indexes of Lake Sapkyo in Asan city Korea, were investigated and analyzed to diagnose and assess the water environment. The 55 and T-P concentrations in influent streams were highly variable during the rainstorm event because of the firs