Influence of Brackish Water Drip Irrigation on Soil Salt and Alkali in Manasi River Basin

SHAO Jianrong; ZHANG Fenghua

doi:10.13961/j.cnki.stbctb.2015.04.032

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Influence of Brackish Water Drip Irrigation on Soil Salt and Alkali in Manasi River Basin

- Influence of Brackish Water Drip Irrigation on Soil Salt and Alkali in Manasi River Basin
- Bulletin of Soiland Water Conservation Vol. 35, Issue 4, Pages: 163-167(2015)
- 作者机构：
  
  石河子大学农学院,新疆,石河子,832003
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2015.04.032
  CLC：
- Published：2015
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SHAO Jianrong, ZHANG Fenghua. Influence of Brackish Water Drip Irrigation on Soil Salt and Alkali in Manasi River Basin[J]. Bulletin of Soiland Water Conservation, 2015, 35(4): 163-167.
DOI：

SHAO Jianrong, ZHANG Fenghua. Influence of Brackish Water Drip Irrigation on Soil Salt and Alkali in Manasi River Basin[J]. Bulletin of Soiland Water Conservation, 2015, 35(4): 163-167. DOI： 10.13961/j.cnki.stbctb.2015.04.032.

摘要

[目的] 探究玛纳斯河流域微咸水滴灌对土壤盐碱性的影响

为新疆干旱区科学利用微咸水以及盐碱地治理提供理论依据。[方法] 在新疆玛纳斯河流域进行定点试验

分析强蒸散条件下微咸水灌溉后土壤盐分的迁移规律及对土壤碱性环境的影响。[结果] 滴灌降低了上层(0-30 cm)土壤盐分

导致土壤盐分的底聚分布;土壤盐分的周期性变化显著(盐分变异系数在48.2%~82.7%之间)

上层(0-30 cm)土壤存在返盐风险;土壤pH值变化与盐分运移呈负相关

滴灌后土壤pH值呈波动上升趋势。[结论] 耕层土壤盐分降低的同时存在碱度(pH值)升高的风险。

Abstract

[Objective] The influence of brackish water drip irrigation on soil salt and alkali in Manasi River Basin was investigated in order to provide theoretical basis for the scientific utilization of brackish water and saline-alkali land management in arid areas of Xinjiang area. [Methods] The experiment was conducted in Manasi River Basin in Xinjiang area

and the influence of brackish water irrigation on soil salt movement regularity and soil pH value were analyzed under the condition of strong evapotranspiration. [Results] Drip irrigation reduced the salt in top layer(0-30 cm) soil

leading to soil salt cluster distribution at the bottom; periodical change of soil salt was significant with the variation coefficient ranging from 48.2% to 48.2%

therefore

the top layer soil(0-30 cm) have the risk of salt accumulation on the surface soil; pH value was negatively correlated with salt movement

soil pH value showed the trend of fluctuation rise after irrigation.[Conclusion] Plough layer soil salt reduced

while the risk of basicity(pH value) rise occurred at the same time.

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