Effects of different irrigation intensities and irrigation methods on soil moisture and soil composition in Yellow River irrigation area

doi:10.14088/j.cnki.issn0439-8114.2021.17.006

Abstract

Abstract: In order to improve the irrigation efficiency of water conservancy projects in the Yellow River irrigation area, the effects of different irrigation intensities and different irrigation methods on soil moisture and composition were discussed in the Yellow River irrigation area of Gansu province. The results showed that the soil water content was low in the Yellow River irrigation area in Gansu province. The highest surface soil water content in 0~10 cm before irrigation was 10.18%, and the water content in 6~10 cm was higher. With the increase of irrigation water, the soil water content in the experimental area increased. Before irrigation, the proportion of sand, silt and clay in 0~2 cm soil was 2.59%, 80.37% and 17.04% respectively. With the increase of irrigation intensity and soil thickness, soil sand and silt in the experimental area increased and decreased. Surge irrigation reduced irrigation water and improved irrigation uniformity and soil moisture content.

Key words: the Yellow River irrigation area, sediment transport, surge flow irrigation, soil moisture content

CLC Number:

TV146

LI Dong-yang. Effects of different irrigation intensities and irrigation methods on soil moisture and soil composition in Yellow River irrigation area[J]. HUBEI AGRICULTURAL SCIENCES, 2021, 60(17): 27-30.

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