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이 논문의 연구 히스토리 (3)
2017
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Climate change causes changes in rainfall patterns, temperature and drought frequency. Climate change impact influences on water management andcrop production. It is critical issue in agricultural industry. Rice is a staple cereal crop in South Korea and Korea uses a ponding system for its paddy fieldswhich requires a significant amount of water. In addition, water supply has inter-relationship with crop production which indicates water productivity.
Therefore, it is important to assess overall impacts of climate change on water resource and crop production. A water footprint concept is an indicatorwhich shows relationship between water use and crop yield. In addition, it generally composed of three components depending on water resources: green,blue, grey water. This study analyzed the change trend of water footprint of paddy rice under the climate change. The downscaled climate data fromHadGEM3-RA based on RCP 8.5 scenario was applied as future periods (2020s, 2050s, 2080s), and historical climate data was set to base line (1990s).
Depending on agro-climatic zones, Suwon and Jeonju were selected for study area. A yield of paddy rice was simulated by using FAO-AquaCrop 5.0,which is a water-driven crop model. Model was calibrated by adjusting parameters and was validated by Mann-Whitney U test statistically. The meansof water footprint were projected increase by 55 % (2020s), 51 % (2050s) and 48 % (2080s), respectively, from the baseline value of 767 m2/ton inSuwon. In case of Jeonju, total water footprint was projected to increase by 46 % (2020s), 45 % (2050s), 12 % (2080s), respectively, from the baselinevalue of 765 m2/ton. The results are expected to be useful for paddy water management and operation of water supply system and apply in establishinglong-term policies for agricultural water resources.
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참고문헌 (27)
참고문헌 신청
Abedinpour, M. / 2012 / Performance evaluation of AquaCrop model for maize crop in a semi-arid environment / Agricultural Water Management 110 : 55 ~ 56
Allen, J. A. / 1998 / Virtual water: a strategic resource, global solutions to regional deficits / Groundwater 36 (4) : 545 ~ 546
Chapagain, A. K. / 2010 / The green, blue and grey water footprint of rice from both a production and consumption perspective / UNESCO-IHE
Choi, D. H. / 1989 / Agroclimatic zone and characters of the area subject to climatic disaster in Korea / Journal of Korean Society of Crop Science 34 (2) : 13 ~ 33
Doorenbos, J. / 1979 / Yield response to water, 193
Allen, J. A. / 1998 / Virtual water: a strategic resource, global solutions to regional deficits / Groundwater 36 (4) : 545 ~ 546
Chapagain, A. K. / 2010 / The green, blue and grey water footprint of rice from both a production and consumption perspective / UNESCO-IHE
Choi, D. H. / 1989 / Agroclimatic zone and characters of the area subject to climatic disaster in Korea / Journal of Korean Society of Crop Science 34 (2) : 13 ~ 33
Doorenbos, J. / 1979 / Yield response to water, 193
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