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단일저수지 농업가뭄평가모형의 개발

Development of A Single Reservoir Agricultural Drought Evaluation Model for Paddy

  • 발행 : 2004.05.30

초록

This study aimed to develop an agricultural drought assessment methodology for irrigated paddy field districts from a single reservoir. Agricultural drought was defined as the reservoir storage shortage state that cannot satisfy water requirement from the paddy fields. The suggested model, SRADEMP (a Single Reservoir Agricultural Drought Evaluation Model for Paddy), was composed of 4 submodels: PWBM (Paddy Water Balance Model), RWBM (Reservoir Water Balance Model), FA (Frequency and probability Analysis model), and DCI (Drought Classification and Indexing model). Two indices, PDF (Paddy Drought Frequency) and PDI (Paddy Drought Index) were also introduced to classify agricultural drought severity Both values were divided into 4 steps, i.e. normal, moderate drought, severe drought, and extreme drought. Each step of PDI was ranged from +4.2 to -1.39, from -1.39 to -3.33, from -3.33 to -4.0 and less than -4.0, respectively. SRADEMP was applied to Jangheung reservoir irrigation district, and the results showed good relationships between simulated results and the observed data including historical drought records showing that SRADEMP explains better the drought conditions in irrigated paddy districts than PDSI.

키워드

참고문헌

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피인용 문헌

  1. Development of Operation Rules in Agricultural Reservoirs using Real-Time Water Level and Irrigation Vulnerability Index vol.55, pp.6, 2013, https://doi.org/10.5389/KSAE.2013.55.6.077
  2. Agricultural Drought Risk Assessment using Reservoir Drought Index vol.55, pp.3, 2013, https://doi.org/10.5389/KSAE.2013.55.3.041
  3. Potential Release of Environmental Flow through Irrigation Reservoir vol.53, pp.6, 2011, https://doi.org/10.5389/KSAE.2011.53.6.101
  4. Probabilistic Analysis of Vertical Drains using Hasofer-Lind Reliability Index vol.53, pp.6, 2011, https://doi.org/10.5389/KSAE.2011.53.6.001
  5. Developing Model of Drought Climate Scenarios for Agricultural Drought Mitigation vol.54, pp.2, 2012, https://doi.org/10.5389/KSAE.2012.54.2.067
  6. Assessment of Anti-Drought Capacity for Agricultural Reservoirs using RCP Scenarios vol.55, pp.3, 2013, https://doi.org/10.5389/KSAE.2013.55.3.013
  7. Evaluation of Irrigation Vulnerability Characteristic Curves in Agricultural Reservoir vol.54, pp.6, 2012, https://doi.org/10.5389/KSAE.2012.54.6.039