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DOI : , Vol.18, No.5, 85 ~ 95, 2010
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| Title |
| Analysis of the Groundwater Recharge According to Changes in Land Use |
| 안승섭 Seung Seop Ahn , 박동일 Dong Il Park , 최윤영 Yun Yeong Choi , 배상근 Sang Keun Bae , 차호섭 Ho Seop Cha |
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| Abstract |
| Groundwater is being greatly influenced by the state of land characteristics in which it will not change in a short period, and by fast changing characteristics of land use due to city development and urbanization. Thus, it is necessary to reflect the ever changing land use situation as a criteria of ground water development and management. This research analyzes the characteristics of groundwater recharge and the characteristics of land change. It is important to note that the characteristics of groundwater recharge uses the Soil and Water Assessment Tool (SWAT) mode, which is an analytical model for a long period widely used both home and abroad, and that the characteristics of land change is a major medium of assessment of groundwater recharge at a target area. For the analysis of long term recharge to take into consideration of land use change at the research area, the researchers conducted an analysis by using the land use level at intervals of five years through the process of data entry of twenty years worth of climate data from the years of 1985 to 2004. The result of the analysis provided shows that the average recharge rate was 41 .9% with average precipitation of 1553.8mm and average recharge of groundwater being 658.8mm. Underground water recharge subsequent to land use change showed recharge rates to be 43.1% in 1985, 42.5% in 1990,41.4% in 1995, and 40.7% in 2000. It is hoped t7hat the research results will make it possible for follow up research work to create the optimum developable amounts of groundwater at the island region: set up a criteria of efficient groundwater preservation and management through assessing an accurate recharge of groundwater according to the change in land use. |
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| Key Words |
| Membrane fouling, hydrophilic, hydrophobic, membrane adsorption, flux |
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