Journal of Northern Agriculture ›› 2017, Vol. 45 ›› Issue (4): 85-85.

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Study on the characteristics of crop water requirement and consumption in arid zone

  

  • Online:2017-08-20 Published:2017-08-20

Abstract: Based on the data of crop planting area and precipitation between 2003 and 2012,the different crop(corn,wheat,cotton and sugar beet)water demand and water consumption were analyzed.The results showed that:The total amount of water of cotton in the 4 crops was the largest,followed by wheat and corn,and the total amount of water in sugar beet was the minimum.The annual water demand of economic crops was significantly higher than that of grain crops.Total annual water demand of crops showed an increasing trend between 2003 and 2012.For many years the average crop water requirement was 1.87×108 m3,and it was the lowest in 2007,it reached the maximum in 2012,which was 2.75×108 m3.In consistent with crop water demand,the total annual water consumption cotton in the 4 crops was the largest,followed by wheat and corn,and the total water consumption of sugar beet was the smallest.The total annual water consumption of crops showed an increasing trend between 2003 and 2012,and the average crop water consumption was 2.07×108 m3.Among them,crop water consumption was the lowest in 2003,and reached the maximum in 2010.The crop water consumption in the study area was consistent with the crop water requirement,which can meet the needs of crop growth,but crop water consumption was different in different regions of the same latitude.

CLC Number: 

  • S718.5