Evaluation of Agricultural Water Supply Potential in Agricultural Reservoirs

Title & Authors
Evaluation of Agricultural Water Supply Potential in Agricultural Reservoirs
Kim, Jin Soo; Lee, Jae Yong; Lee, Jeong Beom; Song, Chul Min; Park, Ji Sung;

Abstract
The new concept of agricultural water supply potential, which is mean annual turnover rate times unit storage capacity, was introduced for agricultural reservoirs. We investigated characteristics of mean annual turnover rate and unit storage capacity for agricultural reservoirs with storage capacity of over $\small{1million\;m^3}$. The curve of agricultural water supply potential represents change in mean annul turnover rate according to change in unit storage capacity. The mean annual turnover rate and unit storage capacity in the reservoirs with high minimum storage ratio are significantly higher than those in the reservoirs with low minimum storage ratio. Most of unstable water supply reservoirs showed low mean annual turnover rate or low unit storage capacity, indicating that mean annual turnover rate may be an index of stability degree for agricultural water use. The reservoirs with mean annual turnover rate of over 2 and unit storage capacity of over 0.8 m may be estimated as the stable water supply zone for 10 frequency dry year. The reservoirs with high agricultural water supply potential can belong to the wide range of stable water supply zone. The results suggest that relation between mean annual turnover rate and unit storage capacity may be used in evaluating stability degree for agricultural water supply in the reservoirs.
Keywords
Agricultural reservoir;Mean annual turnover rate;Unit storage capacity;Agricultural water supply potential;
Language
Korean
Cited by
References
1.
ESRI (Environmental Systems Research Institute), 2006. ArcGIS, Ver. 9.2, Redlands, California.

2.
Jeon, K. S., 2016. Water balance analysis for water demand and supply assessment of administrative districts. M.S. diss., Cheongju: Chungbuk National University (in Korean).

3.
KMA (Korea Meteorological Administrative), Http://www.kma.go.kr/weather/climate/average-south-jsp. Accessed 10 Dec. 2015 (in Korean).

4.
KRC (Korea Rural Community Cooperation), 2007. Manual on repair and renovation of irrigation facilities, Reservoir, 24 (in Korean).

5.
Lee, S. Y., 2008. Estimation of environmentally friendly flow of Donghwa dam. M. S. diss., Seoul: Konkuk University (in Korean)

6.
Lee, S., T. Kim, and M. Satoh, 2010. Participatory irrigation management under the public system in Korea, INWEPF-PAWEES Joint Symposium and Steering Meeting, 51-53. Jeju.

7.
Lee, T. H., 2011. Introduction of HOMWRS, Water and Future 44(7): 88-91 (in Korean).

8.
Ministry of Agriculture, 1998. Irrigation in design standard for agricultural infrastructure project, 165 (in Korean).

9.
Ministry of Education, 1998. Irrigation and drainage, 229 (in Japanese).

10.
Mitsch, W. J., and J. G. Gosselink, 2007. Wetlands, Fourth eds., Wiley, New York.

11.
Noh, J. K., 2011. Securing inflows to reservoir with low ratio of watershed to paddy field areas by operating outside diversion weir. Journal of the Korean Society of Agricultural Engineers 53(1): 17-28 (in Korean).

12.
RIMS (Rural Infrastructure Management System), Http://rims.ekr.or.kr/index.aspx. Accessed 10 Dec. 2015 (in Korean).