Effects of Irrigating with Saline Water on Soil Salinization (Eastern Tunisia)

Louati, Doulira; Majdoub, Rajouene; Rigane, Hafedh; Abida, Habib

doi:10.1007/s13369-018-3215-1

Cited by 22 publications

(8 citation statements)

References 24 publications

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“…If the underground water level is too high, the salt in high-salinity groundwater moves upward with water flow under evaporation and transpiration, finally leading to salinization when salts are concentrated in soils by the evaporation. If the underground water level is to low, the groundwater resource is unavailable in full utilization, which may cause an increase of irrigation, while saline water irrigation is widely adopted (Li 2018;Louati et al 2018;Ma et al 2010), and this will raise the salinity of the soil and even the groundwater, which just has a role in the occurrence of high-salinity groundwater; and this may meanwhile also lift the water level, ultimately becoming a vicious circle.…”

Section: Effects Of Salts On Groundwater Evaporationmentioning

confidence: 99%

Groundwater Evaporation for Salt-Affected Soil Under Plastic Film-Covered Cultivation Condition: a Review

Gong

Xing

2020

J Soil Sci Plant Nutr

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Groundwater is a main type of natural resource, and groundwater evaporation is an important part of the cropland water cycle. Under recent years of poor land management, soil salinization is becoming a serious environmental issue, especially in the arid regions having strong evaporation and shallow groundwater table. Plastic mulching has therefore emerged gradually, becoming a globally applied agricultural practice for its benefits such as salt cumulation control, soil environment regulation, and crop yield improvement. However, knowledge of groundwater evaporation under plastic film-covered cultivation pattern remains vague in terms of action mechanism. This review critically discusses how plastic mulch, salt, and crop cultivation/plant by-products affect groundwater evaporation and further reveals their action mechanisms. For salt-affected cultivated soils, specifically, salt precipitation, crystallization, and capillary force are the non-negligible actions affecting water movement and evaporation. Besides, the physical and chemical effects of formed salt crust at plastic film holes cannot be ignored under plastic mulch underlying condition. Furthermore, the effect of changed canopy cover during growing period should be taken into consideration under crop cultivation underlying condition; meanwhile, the variation of water flow and evaporation induced by crop residues or direct straw return in farmland can be quantified through determining the amount of the hydrophilic oxygen-containing functional groups and the change of soil pore-size distribution. Based on the current research deficiency, future studies should focus on the groundwater contribution to crop, the diurnal variation of groundwater evaporation, the determination of suitable and ecological groundwater table, and the capillary rise models; and future interdisciplinary (e.g., physics and chemistry) research should be put into the interactive of salt and water in order to reveal the mechanisms of fresh and saliferous groundwater flow and evaporation; moreover, the issue on plastic pollution induced by plastic mulch should also be brought to the forefront. A clear understanding of groundwater evaporation under plastic film-covered cultivation on salt-affected soil benefits environmental protection in the saline regions.

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Section: Effects Of Salts On Groundwater Evaporationmentioning

confidence: 99%

Groundwater Evaporation for Salt-Affected Soil Under Plastic Film-Covered Cultivation Condition: a Review

Gong

Xing

2020

J Soil Sci Plant Nutr

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“…It can completely deteriorate the ecosystem's functions and services of the soil, and can impede the possibility of food production in the long run. Applying large amounts of water for leaching, as part of soil salinization mitigation, has been practiced on many salt-affected irrigated lands [31,32], but the amount of water required to impede soil salinization and maintain the production function of the soil is far above the water needed for crop growth. This additional water need must be considered when analyzing the WEF nexus for irrigated agriculture in the context of sustainable development.…”

Section: The Water-energy-food Nexus In the Context Of Irrigated Agri...mentioning

confidence: 99%

Sustainability Considerations in Water–Energy–Food Nexus Research in Irrigated Agriculture

Hamidov

Helming

2020

Sustainability

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Irrigated agriculture is essential to satisfying the globally increasing demand for food and bio-based products. Yet, in water scarce regions, water-use for irrigation aggravates the competition for the use of water for other purposes, such as energy production, drinking water and sanitation. Solutions for sustainable food production through irrigated agriculture require a systemic approach to assess benefits and trade-offs across sectors. Here, the water–energy–food (WEF) nexus has become an important concept in natural resource management. It has been conceptualized to analyze linkages and trade-offs between the three sectors, across temporal and spatial scales. However, the concept has so far mainly been conceptual, with little empirical evidence or proof of concept in real world cases. The objective of this paper was to take stock of the rapidly advancing literature on the WEF nexus in irrigated agriculture, and to analyze how the concept was actually implemented in research studies, and how the nexus between water, food and energy was actually dealt with. The study period ranges from 2011 to 2019, and includes 194 articles. Results showed that the WEF nexus is indeed very relevant in irrigated agriculture, and the respective literature makes up one third of all WEF nexus papers. Modeling and empirical research have caught up with conceptual synthesis studies during the last four years, thereby indicating that the WEF nexus concept is indeed increasingly operationalized. However, most studies addressed the WEF nexus from a perspective of either socioeconomic, technological or environmental categories, and they place one of the dimensions of water, food or energy into the foreground. To address sustainable development, there is a need to fully integrate across research disciplines and thematic dimensions. Such studies are only starting to emerge. These findings are an important evidence-base for future WEF nexus research on irrigated agriculture, in support of sustainable solutions for water scarce regions, especially in settings undergoing transformations.

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“…In Africa, regions affected by soil salinization cover about 69.5 Mha, and it is estimated that global soil salinization will continue spreading at a rate of up to 2 Mha yr −1 (Pereira, Lopes, Abrantes, Sousa, & Chelinho, 2019). In Tunisia, about 50% of irrigated areas are at risk of salinization due to the use of saline water (SW; Louati, Majdoub, Rigane, & Abida, 2018). Allocation of SW to successfully grow crops becomes the main challenge of the agricultural sector.…”

Section: Introductionmentioning

confidence: 99%

Physiological and antioxidative responses in potato under saline irrigation

Akrimi

Hajlaoui²,

El‐Gharbi

et al. 2021

Crop Science

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Salinity continues to challenge crop cultivation under current water precarity conditions. In this study, we aimed to evaluate the influence of electromagnetic treatment of saline water on agrophysiological and antioxidative responses of potato (Solanum tuberosum L.). Three potato varieties (Spunta, Bellini, and Alaska) were subjected, over two growing seasons, to three drip irrigation treatments: saline water (SW), electromagnetic saline water (MSW), and groundwater (control). Phenology, agrophysiological, and biochemical traits were evaluated along the growth cycle. Results showed that, phenological response was similar under SW and MSW. The MSW treatment enhanced the yield, photosynthesis, and chlorophyll fluorescence. Plants irrigated with SW showed higher membrane lipid peroxidation (malondialdehyde [MDA]), antioxidant enzymes, and soluble sugar content in their leaves. Alaska was less responsive to salinity, as it exhibits delayed implementation of antioxidative enzymes and lower MDA and H2O2 contents. It was concluded that MSW might be beneficial for potato cultivation under saline conditions.

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Effects of Irrigating with Saline Water on Soil Salinization (Eastern Tunisia)

Cited by 22 publications

References 24 publications

Groundwater Evaporation for Salt-Affected Soil Under Plastic Film-Covered Cultivation Condition: a Review

Groundwater Evaporation for Salt-Affected Soil Under Plastic Film-Covered Cultivation Condition: a Review

Sustainability Considerations in Water–Energy–Food Nexus Research in Irrigated Agriculture

Physiological and antioxidative responses in potato under saline irrigation

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