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제주도 권역별 농업용수 수요량 산정에 대한 고찰

Estimation of Regional Agricultural Water Demand over the Jeju Island


Over 96.2% of the agricultural water in Jeju Island is obtained from groundwater and there are quite distinct characteristics of agricultural water demand/supply spatially because of regional and seasonal differences in cropping system and rainfall amount. Land use for cultivating crops is expected to decrease 7.4% (4,215 ha) in 2020 compared to 2010, while market garden including various vegetable crop types having high water demand is increasing over the Island, especially western area having lower rainfall amount compared to southern area. On the other hand, land use for fruit including citrus and mandarin having low water demand is widely distributed over southern and northern part having higher rainfall amount. The agricultural water demand of $1,214{\times}10^3\;m^3/day$ in 2020 is estimated about 1.39 times compared to groundwater supply capacity of $874{\times}10^3\;m^3/day$ in 2010 with 42.4% of eastern, 103.1% of western, 61.9% of southern, and 77.0% of northern region. Moreover, net secured amount of agricultural groundwater would be expected to be much smaller due to regional disparity of water demand/supply, the lack of linkage system between the agricultural water supply facilities, and high percentage of private wells. Therefore, it is necessary to ensure the total net secured amount of agricultural groundwater to overcome the expected regional discrepancy of water demand and supply by establishing policy alternative of regional water supply plan over the Island, including linkage system between wells, water tank enlargement, private wells maintenance and public wells development, and continuous enlargement of rainwater utilization facilities.

참고문헌 (13)

  1. Allen, R. G., Pereira, L. S., Raes, D., Smith, M., 1998, Crop Evapotranspiration - Guidelines for Computing Crop Water Requirements, FAO Irrigation and drainage paper 56, Rome, Italy: Food and Agriculture Organization of the United Nations. 
  2. Jeju National University, 2003, Estimation of Irrigation Water Requirements for Upland Crops in Jeju. 
  3. Jeju Special Self-Governing Province, 2011, Agriculture Forestry Livestock Fisheries Food Industry Development Plan. 
  4. Jeju Special Self-Governing Province, 2011, Database using for Groundwater License. 
  5. Jeju Special Self-Governing Province, 2011, Jeju Free International City Comprehensive Plan. 
  6. Jeju Special Self-Governing Province, 2012, Water Resources Management Master Plan(draft). 
  7. Jeju Special Self-Governing Province and KRC, 2004, Jeju Island agricultural comprehensive planning. 
  8. Jeju Special Self-Governing Province and KRC, 2012, Jeju Island agricultural comprehensive planning (draft). 
  9. KRC, 2005, Estimation of Irrigation Water Requirements for Upland Crops in Jeju. 
  10. MIFAFF, 1998, Planning and Design Criteria for the Agricultural Infrastructure Maintenance Projects; Irrigation. 
  11. MIFAFF and KRC, 2008, The Basic Plan Report of Rural Water Development Projects for Hamdeok District in Jeju. 
  12. RDA, 2006, Studies on Water Management Technology on Upland Soil(Volcanic Ash Soil) in Subtropical Area. 
  13. Song, S. H. and Choi, K. J., 2012, An Appropriate Utilization of Agricultural Water Resources of Jeju Island with Climate Change (I), J. Soil Groundwater Environ., 17(2), 62-70. 

이 논문을 인용한 문헌 (1)

  1. Kim, Nam Won ; Nah, Hanna ; Lee, Jeongwoo ; Lee, Jeong Eun 2014. "Complementary Relationship Based Evaportranspiration Estimation Model Suitable for the Hancheon and Kangjeongcheon Watersheds in Jeju Island" Journal of Korea Water Resources Association = 한국수자원학회논문집, 47(12): 1155~1163 


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