When saline water is used to irrigate crops in arid environments, appropriate irrigation management should be applied to avoid negatively impacting soil characteristics. In this study, the effects of irrigating date palms with saline water (2,24 g l−1) on soil physicochemical characteristics such as the electrical conductivity (ECe), the pH of the saturated soil paste (pHe), the concentrations of soluble cations (Ca2+, Mg2+, Na+), the sodium adsorption ratio (SAR), the saturated soil hydraulic conductivity (Ks), and the volumetric water content of the soil (θv) were evaluated in a Tunisian Saharan cropland, the Dergine Oasis, during a 4-year period (2012–2015).
The effects of three different irrigation treatments of date palms on soil properties were investigated: low treatment (90% of the net irrigation requirement (NIR) of date palms was applied); medium treatment (100% of NIR was applied), and high treatment (110% of NIR was applied). The results showed that the application of saline water for irrigation inevitably has a negative impact on the physicochemical properties of the soil.
Irrigation with saline water was observed to have severe negative impacts on the soil characteristics, especially ECe, Na+, Ks, and θv. However, among the three irrigation treatments applied, statistical analysis (Duncan’s multiple range test) indicated that the high treatment significantly (p < 0.05) minimized the degradation of soil characteristics by the saline water; this treatment decreased ECe, Na+, and SAR and increased the water content, θv, of the studied soil.
Inhaltsverzeichnis (Table of Contents)
- Abstract
- Keywords
- Introduction
- Materials and methods
- The Dergine Oasis
- Experimental design and monitored plots
- Soil sampling
- Chemical analyses of the collected soil samples
- Electrical conductivity of the saturated soil paste (EC)
- pH of the saturated soil paste (pH)
- Soluble cation concentrations (Ca²+, Mg2+, and Na+)
- Sodium adsorption ratio (SAR)
- Physical analyses of the collected soil samples
- Soil hydraulic conductivity (K)
- Volumetric water content (0₁)
- Statistical analysis
- Results and discussion
Zielsetzung und Themenschwerpunkte (Objectives and Key Themes)
This research aims to evaluate the effects of saline irrigation on soil physicochemical characteristics in a Tunisian Saharan oasis. Specifically, the study investigates the impact of different irrigation treatments (low, medium, and high) using saline water on key soil properties.
- Impact of Saline Irrigation on Soil Physicochemical Properties
- Influence of Different Irrigation Treatments on Soil Characteristics
- Evaluation of the Degradation of Soil Quality Due to Saline Water
- Identification of the Optimal Irrigation Treatment for Minimizing Soil Degradation
- Sustainable Agricultural Management in Arid Environments
Zusammenfassung der Kapitel (Chapter Summaries)
The introduction provides a context for the study by highlighting the challenges of using saline water for irrigation in arid regions. It outlines the problem of soil salinization and its negative effects on agricultural productivity.
The "Materials and methods" section details the experimental setup, including the location of the study site (Dergine Oasis), the characteristics of the irrigation water, and the experimental design. The section also describes the soil sampling procedures, chemical and physical analyses conducted on soil samples, and the statistical methods used to analyze the data.
Schlüsselwörter (Keywords)
The primary focus of this research is on the impacts of saline irrigation on soil physicochemical properties in arid environments. Key concepts include soil salinization, irrigation treatments, soil characteristics, electrical conductivity, pH, sodium adsorption ratio, hydraulic conductivity, and sustainable agricultural management.
- Arbeit zitieren
- Zied Haj-Amor (Autor:in), Hossein Hashemi (Autor:in), Salem Bouri (Autor:in), 2018, The consequences of saline irrigation treatments on physicochemical soil characteristics, München, GRIN Verlag, https://www.grin.com/document/428105
