A Methodological Approach for Assessing Soil Salinity Hazard in Irrigated Areas. Case Study: The rut Irrigation District, Colombia

Echeverri-Sánchez, Andrés; Pérez, Cristo Facundo; Rojas, Paola Andrea Angulo; Cobo, Norberto Urrutia

doi:10.22395/rium.v15n29a1

Cited by 3 publications

(6 citation statements)

References 3 publications

(3 reference statements)

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“…The model generated allows the identification and zoning of categories of soil vulnerability to soluble phase salinity in irrigated areas and complements the model for identifying the soil salinization hazard by water quality proposed by [26].…”

Section: Discussionmentioning

confidence: 99%

“…Recently [18] presented figures of medium to high susceptibility in the geographic valley of the Cauca River. On the other hand, [26] found medium levels of soil salinization hazard in the soluble phase due to the quality of the irrigation water.…”

Section: Application In Case Studymentioning

confidence: 99%

“…Irrigation methods such as sprinkler and micro-sprinkler, distribute with greater uniformity the water applied, and also the salts contained in the irrigation water, representing low vulnerability from this analysis parameter. Finally, surface irrigation methods generate salt concentration in larger areas than those of drip irrigation, which is why it is classified as medium vulnerability [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35].…”

Section: Distribution Pattern Of Irrigation Water In the Soilmentioning

confidence: 99%

“…In accordance with the provisions of Law 1523 of 2012, which established risk management as the basis for planning in Colombia, and with the Sustainable Soil Management Policy [25], which has a specific strategic line for "Strengthening instruments for environmental and sectoral planning", the objective of this paper was to propose a tool for assessing the vulnerability of soils to salinization in irrigation districts in Colombia, as a complement to the tool for assessing the hazard of soil salinization proposed by [26], which focuses on irrigation water quality.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Methodological Proposal to Assess the Vulnerability of Soils to Salinization in Flat Area Irrigation Districts

Echeverri-Sánchez

2022

rev.ing.univ.Medellin

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Soil salinization is one of the main constraints for food production. These processes occur mainly in irrigated areas, due to natural conditions and inadequate fertilization and irrigation practices. The objective of this article was to generate a model to identify and spatialize the levels of vulnerability to soluble phase salinization in the irrigation districts of Colombia as a complementary tool for the management of soil salinization risk. Two tools were integrated to achieve the objective. On the one hand, the multi-criteriaanalysis method called Analytic Hierarchy Process (AHP) was applied to assign weights to the analysis parameters and build the Soil Vulnerability to Salinization Index (SVSS), and on the other hand, geographic information systems (GIS) were applied to spatialize the analysis parameters and the SVSS, as well as to define the homogeneous vulnerability zones. Finally, the model was applied to a case study. The resulting model considered vulnerability parameters. The most important are Aridity Index, Soil Texture and Fertilization Practices. On a second level are Drainage Infrastructure and Depth of the Water Level. Other factors considered were Slope of the land, Irrigation Water Application Efficiency and Irrigation Water Distribution Pattern. In the case study it was found that 71.8 % of the territory presents Medium Vulnerability and 27.9 % High Vulnerability. The determining parameters of these results were the low efficiencies of irrigation water application, inadequate fertilization practices, clayey textures and lack of subsurface drainage systems.

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Section: Discussionmentioning

confidence: 99%

Section: Application In Case Studymentioning

confidence: 99%

Section: Distribution Pattern Of Irrigation Water In the Soilmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Methodological Proposal to Assess the Vulnerability of Soils to Salinization in Flat Area Irrigation Districts

Echeverri-Sánchez

2022

rev.ing.univ.Medellin

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“…Salinization and sodification are major processes of soil degradation threatening land productivity and global food security [1]. Salt-induced land degradation is common in arid and semi-arid regions, models, aiming to extend their prediction capabilities (for e.g., [15,[26][27][28]). According to Zhou et al [29], the use of risk indices or frameworks for soil salinity assessment may facilitate communication among scientists, policymakers, and practitioners by providing a basis for evaluating the environmental impact of agricultural practices and also government programs and policies.…”

Section: Introductionmentioning

confidence: 99%

Risk Assessment of Irrigation-Related Soil Salinization and Sodification in Mediterranean Areas

Tomaz

Palma

Fialho

et al. 2020

Water

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Salinization and sodification are important processes of soil degradation affecting irrigated lands. A large proportion of the global irrigated area is affected by some degree of soil salinity or sodicity caused by the intensification of irrigation. The increase of the frequency of adverse climatic conditions, like high temperatures and variations in precipitation patterns caused by climate change, will potentially amplify these processes in arid, semi-arid, and Mediterranean areas. The use of integrated approaches for the spatial and temporal prediction of the risk of salinization and sodification in irrigated areas is of great value, helping in the decision-making regarding land uses and choice of more suitable agricultural practices. In this study, based on key criteria for the assessment of irrigation-related salinization processes (e.g., climate, topography, soil drainage, water quality for irrigation, and crop irrigation method), we developed a methodology for the prediction of soil salinity and sodicity risk in irrigated lands, using two composite indices, the Salinization Risk (RSA) index and the Sodification Risk (RSO) index. The application of these indices to a real scenario (a Mediterranean area in Southern Portugal) showed that 67% of the potentially irrigated area presented a low risk of salinity development, 68% had a moderate risk of sodification, and 16% was of high risk of sodicity development. Areas under moderate risk of salinization (26%) were mostly characterized by low slopes and fine-textured soils, like Luvisols and Vertisols, with limited drainage conditions. Areas with high risk of soil sodification presented a large incidence of low slope terrain, moderate-to-restricted soil drainage, in high clay content Luvisols, Vertisols and Cambisols, and land use dominated by annual crops irrigated with surface or sprinkler systems. These risk prediction tools have the potential to be used for resource use planning by policymakers and on-farm management decision by farmers, contributing to the sustainability of irrigated agriculture in Mediterranean regions.

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Analysis of Soil Salinization as an Environmental Issue in Latin America

Calderon Pincay,

Pincay Cantos

2024

J. Ecol. Eng.

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A systematic review was conducted in this study with the aim of analyzing soil salinization in Latin America. Manuscripts published in the region over the past ten years in both English and Spanish that had undergone blind peer review in journals indexed in the databases of Copernicus Publications, Nature, Science Direct, Scielo, and Redalyc were taken into consideration. Soil salinity was discovered to be a growing environmental limitation in at least 9 of the 32 countries that make up the Latin American region. Secondary salinization spreads as a result of changes in land use brought on by the expansion of the agricultural frontier, poor irrigation management using low-quality water, and excessive use of chemical fertilizers, among other things.

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A Methodological Approach for Assessing Soil Salinity Hazard in Irrigated Areas. Case Study: The rut Irrigation District, Colombia

Cited by 3 publications

References 3 publications

Methodological Proposal to Assess the Vulnerability of Soils to Salinization in Flat Area Irrigation Districts

Methodological Proposal to Assess the Vulnerability of Soils to Salinization in Flat Area Irrigation Districts

Risk Assessment of Irrigation-Related Soil Salinization and Sodification in Mediterranean Areas

Analysis of Soil Salinization as an Environmental Issue in Latin America

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