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- W2389948381 abstract "Based on the last 50 years meteorological data from 10 stations( including five stations for winter wheat and five for spring wheat) in Hedong region of Gansu Province,and by using FAO-recommended Penman-Monteith model,the water requirement and water deficiency of winter wheat and spring wheat in the study region were calculated. Meanwhile,by using Mann-Kendall method to analyze the variation trends of the water requirement and water deficiency,the major meteorological factors affecting the variations of wheat water requirement were obtained by correlation analysis. The future trends of the wheat water requirement were forecasted by the method of rescaled range analysis. In the study region,the water requirement of winter wheat in Huanxian had a slight decrease,while that in Kongdong,Tianshui,Wudou,and Xifeng presented an increasing trend. The water requirement of spring wheat in Jingtai decreased,while that in Lintao,Linxia,Minxian,and Yuzhong exhibited an increasing trend. The water deficiency of winter wheat in the study region all showed an increasing trend,with a rate of 7. 32- 25. 19 mm·10a- 1. The water deficiency of spring wheat in Jingtai showed a decreasing trend,with a rate of20. 81 mm·10 a- 1,while that in Lintao,Linxia,Minxian,and Yuzhong showed an increasing trend,with a rate 0. 42- 20. 4 mm·10 a- 1. The major meteorological factors affecting the water requirement of winter wheat were the mean daily air temperature and wind speed,while those affecting the water requirement of spring wheat were the mean daily temperature,relative humidity,and wind speed." @default.
- W2389948381 created "2016-06-24" @default.
- W2389948381 creator A5055558851 @default.
- W2389948381 date "2013-01-01" @default.
- W2389948381 modified "2023-09-26" @default.
- W2389948381 title "Change trend of wheat water requirement and related affecting factors in Hedong region of Gansu Province,Northwest China in recent 50 Years" @default.
- W2389948381 hasPublicationYear "2013" @default.
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