Synergistic Regulation of Soil Water–Salt Transport by Irrigation Quality, Quota, and Texture
Source abstract
Abstract
This study establishes a synergistic Texture–Quota–Salinity (T–Q–S) model to optimize soil water–salt dynamics in arid agricultural systems. Key findings reveal a sand content threshold (S0 = 45.2%) governing salt transport efficiency: (1) Sandy soils (S > 50%) exhibit high leaching capacity, enabling the use of saline water (4 g·L−1) with a 270 mm quota to achieve >75% desalination. (2) Threshold soils (S ≈ 45.2%) balance leaching and retention, maximizing nutrient conservation under brackish water (2 g·L−1) and 260 mm irrigation. (3) Clayey soils (S < 30%) require freshwater (≤2 g·L−1) and reduced quotas (≤230 mm) to mitigate surface salinization. The S0 threshold enables precise irrigation strategies: deep leaching in sandy soils, balanced management in threshold soils, and salt-suppression in clayey soils, enhancing water efficiency by 25% while controlling root zone salinity.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Soil and Unsaturated Flow · Soil and Water Nutrient Dynamics · Soil Carbon and Nitrogen Dynamics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Geology and Mining Engineering, Xinjiang University, Urumqi 830046, China
Xinjiang Key Laboratory of Geodynamic Processes and Metallogenic Prediction of the Central Asian Orogenic Belt, Xinjiang University, Urumqi 830052, China
Funding
Tianshan Talent Training Program
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Show source-provided references
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