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Effect of Subsurface Drainpipe Parameters on Soil Water and Salt Distribution in a Localized Arid Zone: A Field-Scale Study

文献类型： 外文期刊

作者： Wang, Hui 1 ; Zhu, Qianqian 1 ; Pan, Yuzhuo 3 ; Ma, Xiaopeng 1 ; Ding, Feng 1 ; Xu, Wanli 1 ; Fu, Yanbo 2 ; Bian, Qingyong 1 ; Kade, Mushajiang 4 ;

作者机构： 1.Xinjiang Acad Agr Sci, Inst Agr Resources & Environm, Urumqi 830091, Peoples R China

2.Natl Soil Qual Aksu Observat Expt Stn, Aksu 843000, Peoples R China

3.Xinjiang Agr Univ, Coll Water Resources & Civil Engn, Urumqi 830091, Peoples R China

4.Bohu Cty Agr Technol Extens Ctr, Bohu 841400, Peoples R China

关键词： saline soil; subsurface drainpipe parameters; water-salt distribution; arid zone

期刊名称：AGRONOMY-BASEL （ 影响因子：3.4； 五年影响因子：3.8 ）

ISSN：

年卷期： 2025 年 15 卷 3 期

页码：

收录情况： SCI

摘要： The salt distribution characteristics in arid areas are directly related to the sustainable development of agriculture. We study the characteristics of spatial changes of soil water and salt in farmland under the full anniversary of different culvert pipe arrangements and optimize the salt drainage parameters of underground drains suitable for the local area so as to promote the management of saline and alkaline land in Xinjiang. A subsurface drainpipe salinity test was conducted in the Yanqi Basin (Bayingoleng Mongolian Autonomous Prefecture, Xinjiang Uygur Autonomous Region, China) to analyze changes in soil water and salt dynamics before and after irrigation-induced salt flushing, assessing the impact of drainpipe deployment parameters. It was found that at a 1.4 m depth of burial, the maximum desalination rates of soil in different soil layers from the subsurface drainpipes in 20, 30, and 40 m spacing plots were 78.28%, 50.91%, and 54.52%, respectively. At a 1.6 m depth of burial, the maximum desalination rates of soil in different soil layers from the subsurface drainpipes in 20, 30, and 40 m spacing plots were 70.94%, 61.27%, and 44.12%. Reasonable deployment of subsurface drainpipes can effectively reduce soil salinity, increase the desalination rate, and improve soil water salinity condition. This study reveals the influence of the laying parameters of subsurface drainpipes on soil water salinity distribution characteristics in arid zones, which provides theoretical support and practical guidance for the management of soil salinization in arid zones.

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