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http://dx.doi.org/10.7851/ksrp.2017.23.1.085

Assessment of domestic water supply potential of agricultural reservoirs in rural area considering economic index  

Yoon, Kwang-Sik (Dept. of Rural & Biosystems Eng.Chonnam National University)
Choi, Soo-Myung (Dept. of Rural & Biosystems Eng.Chonnam National University)
Chai, Jong-Hun (Dept. of Economics.Chosun University)
Yoo, Seung-Hwan (Dept. of Rural & Biosystems Eng.Chonnam National University)
Choi, Dong-Ho (Climate Change and Agroecology Division, National Academy of Agricultural Science)
Yoon, Suk-Gun (Korean Rural community corporation)
Lee, Chang-Hee (Korean Rural community corporation)
Jung, Kyung-Hun (Korean Rural community corporation)
Shin, Gil-Chai (Korean Rural community corporation)
Publication Information
Journal of Korean Society of Rural Planning / v.23, no.1, 2017 , pp. 85-96 More about this Journal
Abstract
Existing agricultural reservoirs are considered as alternative source for the water welfare of rural area. In this study, domestic water supply potential of 476 reservoirs, which has storage capacity more than one million cubic meter, out of 3,377 agricultural reservoirs managed by Korean Rural Community Corporation (KRC) were investigated. Among them water quality of 136 reservoirs met the criteria of domestic water source which show less than COD 3 ppm. Available amount for domestic water of reservoirs, which meet the water quality, for ten year return period of drought was analyzed with reservoir water balance model. The results showed that 116 reservoirs has potential for supplementary domestic water supply while satisfying irrigation water supply. Finally, economic analysis using Net Present Value (NPV), Benefit-Cost (B/C) ratio, Internal Rate of Return (IRR), and Profitability Index (PI) methods was also conducted. The analysis showed that 19 reservoirs satisfied economic feasibility when water is provided from reservoir outlet but only 9 reservoirs meet the economic feasibility if water delivered from a reservoir to treatment plant by newly built conveyance canal. In order to supply the domestic water through the agricultural reservoirs managed by KRC, it is necessary to flexibly interpret and operate the 'Rearrangement of Agricultural and Fishing village Act'. Also, it is reasonable to participate in the water service business when there is a supply request from other Ministries. In addition, the KRC requires further effort to change the crop system for saving water and improve efficiency of irrigation systems.
Keywords
agricultural reservoirs; Korean rural community corporation (KRC); supplementary domestic water; economic analysis;
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Times Cited By KSCI : 2  (Citation Analysis)
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