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DOI : 10.17640/KSWST.2016.24.3.75 , Vol.24, No.3, 75 ~ 84, 2016
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| Title |
| Basin Environment Database for Integrated Lake Basin Management in Lake Paldang |
| 오혜철 Hye-cheol Oh , 안재환 Jae-hwan Ahn , 윤상린 Sang-leen Yun , 김영민 Young-min Kim , 박성균 Seung-kyun Park , 전기도 Ki-do Jeon , 김석구 Seog-ku Kim |
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| Abstract |
| This study established a basin environment database for Integrated Lake Basin Management in Lake Paldang. After collecting various data including digital elevation model (DEM), land use, soil, meteorological data and hydrological data, basin environment database was established through ArcGIS utilization. Lake Paldang Basin has a maximum altitude of 1,634 m, minimum altitude of 21 m, and average altitude of 471 m, and its area is 23,741 km2. Land use of Lake Paldang Basin consists of forest 77.7%, cropland 13.6%, pasture 3.7% and urban area 2.4%. Soil consists of loam 51.5% and sandy loam 48.5%. As a result of analyzing water pollution sources using the basin environment database, domestic, land and livestock pollution sources turned out to be the main causes. The total population at Lake Paldang Basin is 2,320,495, and the percentage of the sewered population is 67.7%. Since the non-sewered population takes up 32.3%, domestic pollution sources flowed in by Lake Paldang Basin can be reduced by supplying sewerage. The pollution loads emitted by agricultural lands are SS 40%, TN 52% and TP 50%, and the loads of livestock pollutant sources are SS 35%, TN 32% and TP 32%, taking up most of the pollution loads emitted from the entire basin. Therefore, Integrated Lake Basin Management to improve water quality of Lake Paldang were necessary to increase the percentage of sewered population and to reduce agricultural and livestock pollution sources. |
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| Key Words |
| Lake Paldang, Basin Environmental Database, Integrated Lake Basin Management, GIS |
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