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- W1226966600 abstract "Study on the trend of agricultural water consumption and its influence factors is very important for the future work of saving water in Beijing.In this paper,the trend of the gross agricultural water consumption from 1986 to 2007 was analyzed.Influence factors were selected by using the principal component analysis.The result indicated that area,production and climate were the three major factors which influenced the changing of agricultural water consumption.The three factors covered five indicators including crop sown area,effective irrigation area,planting production,live-stock production and reference evapotranspiration.Through detailed analysis of the three factors,it has been found that the decreasing of agricultural water consumption was mainly caused by the decreasing of crop sown area and effective irrigation area,and the increasing of water-saving irrigation area and the progress of water-saving technologies in the past 20 years.The decreasing of water consumption to per unit crop production is helpful to the reduction of agricultural water consumption,and the reasonable change of the proportion of water used by planting and husbandry is conducive to the development of water-saving agriculture.The increasing of reference evapotranspiration is not conducive to reduce the amount of irrigation water." @default.
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- W1226966600 date "2009-01-01" @default.
- W1226966600 modified "2023-09-24" @default.
- W1226966600 title "Agricultural water consumption trend and its influence factors in Beijing over the past 20 years." @default.
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