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华北地区咸水灌溉土壤水盐运移规律及对小麦产量的影响研究

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王哲, 王丽娟, 李猛兴. 2023. 华北地区咸水灌溉土壤水盐运移规律及对小麦产量的影响研究[J]. 华北地质, 46(3): 76-81. doi: 10.19948/j.12-1471/P.2023.03.10
引用本文: 王哲, 王丽娟, 李猛兴. 2023. 华北地区咸水灌溉土壤水盐运移规律及对小麦产量的影响研究[J]. 华北地质, 46(3): 76-81. doi: 10.19948/j.12-1471/P.2023.03.10
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WANG Zhe, WANG Lijuan, LI Mengxing. 2023. Study on soil water and salt movement and its effect on wheat production under saline water irrigation in North China Plain. North China Geology, 46(3): 76-81. doi: 10.19948/j.12-1471/P.2023.03.10
Citation: WANG Zhe, WANG Lijuan, LI Mengxing. 2023. Study on soil water and salt movement and its effect on wheat production under saline water irrigation in North China Plain. North China Geology, 46(3): 76-81. doi: 10.19948/j.12-1471/P.2023.03.10
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华北地区咸水灌溉土壤水盐运移规律及对小麦产量的影响研究

  • 1. 中国地质科学院水文地质环境地质研究所, 石家庄 050061;

  • 2. 山西省地质调查院有限公司, 太原 030006

  • 基金项目:

    自然资源部项目“我国典型地区大气水-地表水-地下水资源综合评估与水平衡研究—以滹滏平原为例（B201905）”

详细信息
    作者简介: 王哲(1982-),男,博士,高级工程师,主要从事地下水资源与环境研究,E-mail:972636980@qq.com;
    通讯作者: 王丽娟(1982-),女,博士,高级工程师,主要从事地下水资源与环境研究,E-mail:32737195@qq.com

  • 中图分类号: S512.1

Study on soil water and salt movement and its effect on wheat production under saline water irrigation in North China Plain

  • 1. The Institute of Hydrogeology and Environment Geology, CAGS, Shijiazhuang 050061 China;

  • 2. Shanxi Institute of Geological Survey Co., ltd, Taiyuan 030006, China

More Information
    Corresponding author: WANG Lijuan

    摘要
  • 为了探究华北地区地下咸水资源科学、合理的利用方式，本文通过开展冬小麦咸水灌溉的田间试验，采用地下咸水和淡水灌溉两种方式，研究了咸水灌溉对土壤水盐运移及小麦产量的影响。结果表明，同一灌溉量下，淡水灌溉水分运移深度较咸水灌溉深，且同一深度淡水灌溉土壤含水率明显高于咸水，咸水灌溉在一度程度上会影响土壤入渗和持水能力；咸水灌溉随着持续灌溉，土壤表层（0~0.2 m）和深层（0.6~1.2 m）盐分开始积聚，整个播种收获期，土壤剖面含盐量产生不同程度累积，埋深0.4 m 盐分累积量达到峰值1.6 g/kg。淡水灌溉对土壤含盐量影响较小，但会将表层土壤盐分淋洗至深层累积；当灌溉水矿化度为8.69 g/L，冬小麦产量减少达37.65%。因此，在开展咸水灌溉时，应合理控制灌溉水的矿化度，实行咸淡混合灌溉，在小麦不减产情况下最大限度利用咸水资源。
    In order to explore a scientific and rational utilization way of the saline groundwater resources in North China, the effects of saline groundwater irrigation on soil water-salt movement and wheat production was studied by the field experiments of saline water irrigation for winter wheat, with both saline water and fresh water irrigation.The results showed that the water movement depth of fresh water irrigation side was deeper than that of salt water irrigation side, and the soil water content of fresh water irrigation side was higher than that of salt water irrigation side at the same depth. It can be inferred that salt water irrigation affects soil infiltration and soil water holding capacity to a certain extent. With the continuous irrigation, salt accumulated in the surface layer(0~0.2 m)and the deep layer (0.6 m~1.2 m) of the saline water irrigation side.The salt content accumulated differently at different depth of the soil profile in the whole growth period, and it reached a peak value of 1.6 g/kg at the depth 0.4 m.The effect of fresh water irrigation on salt accumulation was relatively weak, but it would leach salt from surface to deep layer. When the salinity of irrigation water reached 8.69 g/l, the yield of winter wheat reduced by 37.65%. Therefore, when saline water irrigation is carried out, the mineralization degree of irrigation water should be reasonably controlled.
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收稿日期:  2023-03-03

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