Hindcasting the effects of climate change on rice yields, irrigation requirements, and water productivity

Luo, Yufeng; Jiang, Yunlu; Peng, Shizhang; Cui, Yuanlai; Khan, Shahbaz; Li, Yalong; Wang, Weiguang

doi:10.1007/s10333-013-0409-8

Cited by 20 publications

(13 citation statements)

References 28 publications

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“…The potential impact of climate change on rice productivity is reported in many recent studies such as Babel et al (2011), Luo et al (2013) and Soora et al (2013). Although climatic variables are uncontrollable, factors such as cultivars, soil, water and nutrients can be managed in order to counteract the adverse effects of climate change (Moradi et al 2013).…”

Section: Introductionmentioning

confidence: 98%

Adaptation Strategies for Rice Cultivation Under Climate Change in Central Vietnam

Shrestha

2014

Climate Change Impacts and Adaptation in Water Resources and Water Use Sectors

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This study investigates the impact of climate change on winter and summer rice (Oryza sativa) yield and evaluates several adaptation measures to overcome the negative impact of climate change on rice production in the Quang Nam province of Vietnam. Future climate change scenarios for time periods in the 2020s, 2050s and 2080s were projected by downscaling the outputs of the General Circulation Model (GCM), Hadley Centre Coupled Model, version 3 (HadCM3) A2 and B2 scenarios. The AquaCrop model was used to simulate the impact of future climates on rice yield. The minimum and maximum temperature of the province is projected to increase by 0.35-1.72°C and 0.93-3.69°C respectively in future. Similarly, the annual precipitation is expected to increase by 9.75 % in the 2080s. Results show that climate change will reduce rice yield from 1.29 to 23.05 % during the winter season for both scenarios and all time periods, whereas an increase in yield by 2.07-6.66 % is expected in the summer season for the 2020s and 2050s; relative to baseline yield. The overall decrease of rice yield in the winter season can be offset, and rice yield in the summer season can be enhanced to potential levels by altering the transplanting dates and by introducing supplementary irrigation. Late transplanting of rice shows an increase of yield by 20-27 % in future. Whereas supplementary irrigation of rice in the winter season shows an increase in yield of up to 42 % in future. Increasing the fertilizer application rate enhances the yield from 0.3 to 29.8 % under future climates. Similarly, changing the number of doses of fertilizer application increased rice yield by 1.8-5.1 %, relative to the current practice of single dose application. Shifting to other heat tolerant varieties also increased the rice production. Based on the findings, changing planting dates, supplementary irrigation, proper nutrient management and adopting to new rice cultivars can be beneficial for the adaptation of rice cultivation under climate change scenarios in central Vietnam.

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Section: Introductionmentioning

confidence: 98%

Adaptation Strategies for Rice Cultivation Under Climate Change in Central Vietnam

Shrestha

2014

Climate Change Impacts and Adaptation in Water Resources and Water Use Sectors

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“…() and Luo et al . () pointed out that adaptation to climate change should be considered as integration of crop growth simulation models. Therefore, it is necessary to study future food security integrated with climate, energy, food, environment and population on account of the uncertain climate (Khan et al ., ).…”

Section: Introductionmentioning

confidence: 99%

“…Kang et al (2009) reviewed climate change impacts on crop yield, crop water productivity and food security, pointing that with the increase of temperature and the fluctuation of precipitation, crop production and water use efficiency may decrease in the future. Reidsma et al (2010) and Luo et al (2015) pointed out that adaptation to climate change should be considered as integration of crop growth simulation models. Therefore, it is necessary to study future food security integrated with climate, energy, food, environment and population on account of the uncertain climate .…”

Section: Introductionmentioning

confidence: 99%

Analysing Climate Change Impacts on Water Productivity of Cropping Systems in the Murray Darling Basin, Australia

Kang

Khan²

2015

Irrigation and Drainage

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Climate change impacts on food production and water use efficiency are becoming more and more important. This paper mainly discusses the climate change effects on water use indices and maize yield under rainfed and irrigated conditions projected by three climate models in the Murray Darling Basin, Australia in 2020, 2050 and 2080 under A2 and B2 scenarios. The climate prediction results show that it is similar to the future precipitation and temperature projected by three climate models for the same time slices. For rainfed and irrigated maize, the crop yield, the potential and actual evapotranspiration will increase by 3–32, 3–12, 30–45 and 32–45, 3–15, 6–15% under both scenarios in the future during the maize growth period compared with the baseline respectively. Water use indices of maize under rainfed conditions will decrease and the variable increment will gradually be larger in the future, including evapotranspiration efficiency, crop water use efficiency and total water use efficiency. However, all the water use indices analysed under irrigated conditions will increase. The variation for evapotranspiration efficiency, ratio of evapotranspiration and irrigation is around 20%, but the variation for the other three indices is more than 30%. The projection results also indicate that the indices under the B2 scenario are smaller than those under A2 although the variable tendency and range are consistent. The conclusions suggest that it is significant to develop irrigated agriculture so as to mitigate climate change effects on crop production in the Murray Darling Basin. Copyright © 2015 John Wiley & Sons, Ltd.

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“…WP can be improved by increasing yield or decreasing infiltration and percolation. Under climate change scenarios, irrigation techniques for saving water, such as alternate wetting and drying, are also efficient measures (Luo et al, ).…”

Section: Introductionmentioning

confidence: 99%

Water Productivity of Rice Genotypes with Irrigation and Drainage

López‐López

Jiménez‐Chong

Hernández‐Aragón

et al. 2018

Irrigation and Drainage

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The aims of this study were: (i) to evaluate the agronomic characteristics of thin-grain rice genotypes with high yield potential under irrigation conditions; (ii) to quantify water productivity (WP) in thin-grain rice genotypes, based on crop evapotranspiration (ET C ) and irrigation and surface drainage control. Eight genotypes were planted: four varieties, two promising lines and hybrid Clearfield XL745 and IRGA. Direct dry seeding was carried out mechanically at a density of 80 kg ha -1 for the varieties and 32 kg ha -1 for the hybrid; drainage was performed every 9.3 m inside of the border. The results indicate that there are significant differences (P > 0.05) among genotypes for grain yield and its components, except for lodging. The varieties and promising rice lines evaluated expressed good productive capacity, but they were surpassed by 19% by the average productivity recorded by the variety IRGA and the hybrid Clearfield. The variation in water demand based on ET C is evident in the optimal irrigation depth applications of 264 mm for the hybrid and 318 mm for the intermediate-cycle genotypes. The border irrigation method with drainage troughs significantly increases water productivity based on the applied irrigation (WP I ), averaging 2.0 kg m -3 .

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Hindcasting the effects of climate change on rice yields, irrigation requirements, and water productivity

Cited by 20 publications

References 28 publications

Adaptation Strategies for Rice Cultivation Under Climate Change in Central Vietnam

Adaptation Strategies for Rice Cultivation Under Climate Change in Central Vietnam

Analysing Climate Change Impacts on Water Productivity of Cropping Systems in the Murray Darling Basin, Australia

Water Productivity of Rice Genotypes with Irrigation and Drainage

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