The threat of soil salinity: A European scale review

Daliakopoulos, Ioannis Ν.; Tsanis, Ioannis K.; Koutroulis, Aristeidis; Kourgialas, Nektarios N.; Varouchakis, Emmanouil A.; Karatzas, George P.; Ritsema, C.J.

doi:10.1016/j.scitotenv.2016.08.177

Cited by 593 publications

(332 citation statements)

References 145 publications

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“…Furthermore, an excess of soluble salts in the soil impedes or makes the normal development of crops more difficult (Daliakopoulos et al, 2016). In general, most sensitive crops are exposed to stress with an electrical conductivity above 1 dS m -1 , determined in saturated paste extract (Maas and Grattan, 1999).…”

Section: Effect Of Calcium-based Amendments On Ph and Electrical Condmentioning

confidence: 99%

The effect of four calcium‐based amendments on soil aggregate stability of two sandy topsoils

Vargas

Verdejo

Rivera

et al. 2018

J. Plant Nutr. Soil Sci.

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The structural stability of soil is a physical characteristic that affects soil degradation processes. Calcium‐based amendments, such as calcium carbonate, calcium sulfate, and calcium oxide/hydroxide, have been shown to improve the stability of soil aggregates. This study seeks to determine which calcium‐based soil amendments, and at what concentration, are the most efficient in improving aggregate stability of sandy topsoils derived from granitic and metamorphic parent materials, and to analyze the mechanisms involved. In the pot experiment, soils amended with CaCO3, CaCl2, and CaSO4 did not present significant differences in aggregate stability compared to the control or among each other. In contrast, Ca(OH)2 soil amendment brought the greatest stability to the soil aggregates. A dose of 1% Ca(OH)2 significantly increased the stability of soil aggregates. This effect is due to the reaction of Ca(OH)2 with atmospheric CO2 which leads to the formation of CaCO3, a delayed reaction not showed by the other soil amendments tested. Likewise, the greater solubility of Ca(OH)2 compared to CaCO3 exerts a greater aggregation effect on soil. Thus, the mechanism of action of Ca(OH)2 is related to cementation, rather than flocculation. Future studies should be carried out to demonstrate the effectiveness of Ca(OH)2 under field conditions.

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Section: Effect Of Calcium-based Amendments On Ph and Electrical Condmentioning

confidence: 99%

The effect of four calcium‐based amendments on soil aggregate stability of two sandy topsoils

Vargas

Verdejo

Rivera

et al. 2018

J. Plant Nutr. Soil Sci.

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“…Salinization of soil is a persistent environmental concern in many regions worldwide (e.g., Rengasamy ; Daliakopoulos et al . ; Siemon et al . 2019).…”

Section: Introductionmentioning

confidence: 99%

“…Salinization of soil is a persistent environmental concern in many regions worldwide (e.g., Rengasamy 2006;Daliakopoulos et al 2016;Siemon et al 2019). Throughout northeast Thailand, widespread saline soils have severely degraded the agricultural productivity of the land, causing hardships for local populations (Arunin and Pongwichian 2015).…”

Section: Introductionmentioning

confidence: 99%

Geophysical Mapping of Shallow Rock Salt at Borabue, Northeast Thailand

Sarntima

Arjwech

Everett

2019

Near Surface Geophysics

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In the northeast of Thailand, many swamps and lakes show evidence of rock salt dissolution, with attendant environmental problems due to saline groundwater and soil salinization. The knowledge of the depth and structure of the rock salt would be useful to achieve a better understanding of the impact of its dissolution on the environment and to facilitate effective land management strategies. Geophysical methods can provide key subsurface information. Four seismic refraction profiles and three electrical resistivity tomography profiles were carried out between Nong Bo and Nong Pong reservoirs in the salt‐affected Borabue district of Maha Sarakham province. The seismic results indicate the top of shallow rock salt beneath Nong Bo reservoir as a diagnostic zone of high P‐wave velocity >3400 m/s at depths >20 m. The electrical resistivity tomography investigation shows electrical resistivity values ≳5 Ωm at similar depths, indicative also of shallow rock salt. Zones interpreted to be saline groundwater are electrically conductive, identified by electrical resistivity values ≲5 Ωm in the electrical resistivity tomography images. The combined seismic–electrical resistivity tomography interpretation suggests that shallow rock salt lies beneath the reservoirs and ponds in the Borabue district but does not appear to form a continuous body between the two largest reservoirs.

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“…Saline soils in the central Ebro Basin constitute a significant percentage of agricultural areas (Ayers, Váz-quez, De la Rubia, Blasco, & Samplón, 1960;Daliakopoulos et al, 2016;Herrero & Aragüés, 1988;Toth et al, 2008), requiring mapping and monitoring to avoid environmental and economic damage. Different approaches have been adopted in the region for mapping and monitoring soil salinity by Betrán (1986), Rodríguez-Ochoa, Herrero, and Porta (1989), Díaz and Herrero (1992), and Herrero and Pérez-Coveta (2005), among others.…”

Section: Introductionmentioning

confidence: 99%

Soils of Barbués and Torres de Barbués, Ebro Basin, NE Spain

Álamo

Herrero

Nogues³

2016

Journal of Maps

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Irrigation is needed for profitable agriculture in the central Ebro valley, one of the driest regions in Europe. In this region, aridity and outcrops of saliferous strata induce soil salinity in some irrigated districts. We present a soil map of two municipalities (about 32 km 2 ) coping with soil salinity and currently changing their irrigation from flood to pressurized systems. The 1:25,000 scale map displays 27 Soil Series following the Soil Taxonomy approach and records local pedodiversity for the first time. The scale of the map and its delineation on orthophotographs enables users to locate each agricultural plot (typical size ∼1 ha) and to assign the soil information relevant for irrigation, and then a Soil Phase for salinity. Saline soils occur in irrigated areas totaling 24% of the total surface of the two municipalities studied. The salinity mapping plus other soil features used for map unit definition (texture, stoniness, and available water holding capacity), allow recommendations about the design of irrigation system enhancements. ARTICLE HISTORY

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The threat of soil salinity: A European scale review

Cited by 593 publications

References 145 publications

The effect of four calcium‐based amendments on soil aggregate stability of two sandy topsoils

The effect of four calcium‐based amendments on soil aggregate stability of two sandy topsoils

Geophysical Mapping of Shallow Rock Salt at Borabue, Northeast Thailand

Soils of Barbués and Torres de Barbués, Ebro Basin, NE Spain

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