레질리언스 지표를 이용한 저수지 수혜구역의 전작농지 용수공급 안정성 평가
Evaluation of Water Supply Stability for Upland Crop in Reservoir Irrigation Districts
1
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
As the agricultural land use shifts from paddy to upland, ensuring reservoir water supply stability for upland crop irrigation becomes essential. The objectives of this study were to estimate the irrigation water requirements considering the upland irrigation scenario and to evaluate the reliability of the water supply from the agricultural reservoir using resilience indexes. Two study sites, Sinheung and Hwajeong, were selected, and soybean and red peppers, the most water-intensive crops, were selected as study crops, respectively. For the irrigation scenario, two irrigation methods of traditional scheduling (which irrigates all sites at once) and rotational scheduling (which distributes irrigation by districts), along with the upland conversion rate, were considered. The net irrigation requirement was estimated through a water balance analysis. The stability of the reservoir was evaluated using resilience indexes based on the simulated 10-years reservoir water levels and drought criterion. Overall, the water supply of the reservoir was evaluated as stable during the simulated 10 years, except for the one year. Compared to the two irrigation methods, rotational scheduling resulted in lower irrigation water usage in both sites, with reductions of 1.6%, and 0.3%, respectively. As the upland conversion rate increases, the water deficit could be intensified in Hwajeong with a conversion rate exceeding 50%, showing the number of deficit(ND) over the one and a rapid increase in the deficit ratio(DR). It was confirmed that the reservoir operation criteria can be enhanced by incorporating resilience indicators along with crop growth information, thus, this will be a further study.
Abstract
As the agricultural land use shifts from paddy to upland, ensuring reservoir water supply stability for upland crop irrigation becomes essential. The objectives of this study were to estimate the irrigation water requirements considering the upland irrigation scenario and to evaluate the reliability of the water supply from the agricultural reservoir using resilience indexes. Two study sites, Sinheung and Hwajeong, were selected, and soybean and red peppers, the most water-intensive crops, were selected as study crops, respectively. For the irrigation scenario, two irrigation methods of traditional scheduling (which irrigates all sites at once) and rotational scheduling (which distributes irrigation by districts), along with the upland conversion rate, were considered. The net irrigation requirement was estimated through a water balance analysis. The stability of the reservoir was evaluated using resilience indexes based on the simulated 10-years reservoir water levels and drought criterion. Overall, the water supply of the reservoir was evaluated as stable during the simulated 10 years, except for the one year. Compared to the two irrigation methods, rotational scheduling resulted in lower irrigation water usage in both sites, with reductions of 1.6%, and 0.3%, respectively. As the upland conversion rate increases, the water deficit could be intensified in Hwajeong with a conversion rate exceeding 50%, showing the number of deficit(ND) over the one and a rapid increase in the deficit ratio(DR). It was confirmed that the reservoir operation criteria can be enhanced by incorporating resilience indicators along with crop growth information, thus, this will be a further study.
참고문헌 (33)
- Crop evapotranspiration : guidelines for computing crop water requirements, "Allen, R. G.", United Nations Food and Agriculture Organization, ~, pp.Irrigation and Drainage Paper 56 (1998)
- Research on agricultural damage measurement caused by drought, "Chae, G.", Korea Rural Economic Institute, 1~78 (2016)
- Chung, H., "Irrigation and Drainage Engineering" (1999), Dongmyungsa
- Hashimoto, T., "Reliability, resiliency, and vulnerability criteria for water resource system performance evaluation", Water Resources Research, 18(1), pp.14~20 (1982)[DOI]
- Holling, C. S., "Resilience and stability of ecological systems", Annual Review of Ecology and Systematics, 4(1), pp.1~23 (1973)[DOI]
- Hong, S., "Estimation of SCS runoff curve number and hydrograph by using highly detailed soil map(1 : 5, 000)in a small watershed, Sosu-myeon, Goesan-gun", Korean Journal of Soil Science and Fertilizer, 43(3), pp.363~373 (2010)
- Han, C., "Seasonal variation and storage period of rainwater quality in Changwon", Journal of Korean Society of Environmental Engineers, 32(5), pp.461~468 (2010)
- Hong, R., "Optimization of storage tank installation locations for pipeline water supply using genetic algorithm", Journal of the Korean Society of Agricultural Engineers, 64(6), pp.43~53 (2022)[DOI]
- Hsu, S. K., "Shortage indices for water-resources planning in Taiwan", Journal of Water Resources Planning and Management, 121(2), pp.119~131 (1995)
- Hwang, S., "Development of a framework for evaluating water quality in estuarine reservoir based on a resilience analysis method", Journal of the Korean Society of Agricultural Engineers, 62(5), pp.105~119 (2020)[DOI]
- Jang, S., "Economic Analysis of Upland Crop Irrigation Between Individual and Collective Well Water Supply", Journal of the Korean Association of Geographic Information Studies, 23(3), pp.192~207 (2020)[DOI]
- KOSTAT(Statistics Korea), "Survey of agricultural area", ~ (2019)
- Food Grain Consumption Survey Report in 2021, "KOSTAT(Statistics Korea)", ~ (2021)
- Cultivated area survey results in 2021, "KOSTAT(Statistics Korea)", ~ (2021)
- Kim, M., "A study on the risk assessment of small reservoirs using reliability analysis methods", Journal of Korea Water Resources Association, 33(1), pp.15~30 (2000)
- Kim, S., "Securement of upland irrigation water in small dams through periodical management of storage level", Journal of the Korean Society of Agricultural Engineers, 47(2), pp.3~12 (2005)
- Kim S., "Analysis of effects fro water quality improvement considering volume of stroage facilities and LID techniques", Journal of Korean Society of Environmental Technology, 18(3), pp.210~221 (2017)
- Kwon, H., "An irrigation reliability assessment of agricultural reservoir to establish response plan of future climate change adaptation", Journal of the Korean Society of Agricultural Engineers, 62(2), pp.111~120 (2020)[DOI]
- Kwon, C., "Analysis of land cover change from paddy to upland for the reservoir irrigation districts", Journal of the Korean Society of Agricultural Engineers, 63(6), pp.27~37 (2021)[DOI]
- Lee, H., "A new alternative to the ｢Paddy and Other Crop Cultivation Support Project｣: Focusing on the Generalization of Paddy Fields for the Multilateral Use of Paddy Fields", Magazine of the Korean Society of Agricultural Engineers, 60(4), pp.7~15 (2018)
- McMahon, T. A., "Understanding performance measures of reservoirs", Journal of Hydrology, 324, pp.359~382 (2006)[DOI]
- National drought information statistics in 2019, "MOIS(Ministry of the Interior and Safety)", ~ (2021)
- Moon, G., "Comparing calculation techniques for effective rainfalls using NRCS-CN method : focused on introducing weighted average and slope-based CN", Journal of the Korean Society of Civil Engineers, 34(4), pp.1171~1180 (2014)[DOI]
- Nam, W. H., "Development of an irrigation vulnerability assessment model in agricultural reservoirs utilizing probability theory and reliability analysis", Agricultural Water Management, 142, pp.115~126 (2014)[DOI]
- Nam, W., "Projection of consumptive use and irrigation water for major upland crops using soil moisture model under climate change", Journal of the Korean Society of Agricultural Engineers, 56(5), pp.77~87 (2014)[DOI]
- National Institute of Agricultural Sciences(NAAS), "Estimation of crop factor and standard evapotranspiration calculation method for field crops", ~ (2017)
- National Institute of Agricultural Sciences(NAAS), "Technology for field crop irrigation (according to soil, crop, and region)", ~ (2018)
- Parsons, L. R., "Reclaimed water as an alternative water source for crop irrigation", HortScience, 45(11), pp.1626~1629 (2010)
- Park, J. Y., "Development of operating rule curve for multipurpose water supply in heightened agricultural reservoir", Journal of the Korean Society of Civil Engineers, 33(4), pp.1389~1400 (2013)[DOI]
- Park, K., "A study of reliability index correlation analysis in reservoir water-supply", Journal of the Environmental Sciences, 14(3), pp.289~296 (2005)
- SCS(Soil Conservation Service), "National engineering handbook, Section 4, Hydrology", US 444Department of Agriculture, US Government Printing Office, ~ (1972)
- Simonovic, S. P., "Comparison of static and dynamic resilience for a multipurpose reservoir operation", Water Resources Research, 52(11), pp.8630~8649 (2016)[DOI]
- Zhang, Y., "Study on the standards of proper effective rooting depth for upland crops", Korean Journal of Soil Science and Fertilizer, 50(1), pp.21~30 (2017)[DOI]