A new methodology for producing of risk maps of soil salinity, case study: Payab Basin, Iran

Masoudi, Masoud; Patwardhan, Anil; Gore, Sonal

doi:10.4314/jasem.v10i3.17312

Cited by 17 publications

(22 citation statements)

References 1 publication

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“…Therefore, identification of salt-affected areas is essential for sustainable agricultural management (Mahmoud, Shabbir, and Yasser 2009;Masoud, Patwardhan, and Gore 2006). The traditional approach to soil salinity mapping is based on rigid information classes with crisp boundaries, using soil reaction (pH) and electrical conductivity (EC) ranges as established by Farifteh et al (2008) and Shrestha (2006).…”

Section: Introductionmentioning

confidence: 99%

Study of How Salt Types Greatly Shape Soil Reflectance Spectra versus Salt Concentrations

Wang

Maina

et al. 2013

Communications in Soil Science and Plant Analysis

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In this study, a controlled experiment was designed to determine the potential impacts that salt types impose on soil reflectance spectra. Base soil from a typical inland river basin in China and 99% pure salts of three representive salt types as well as their combinations in different proportions were used to create composite soil samples. Seven levels of salt concentration were assigned for each saline soil treatment. The results revealed that salt concentration did not affect pattern parameters significantly (P > 0.5), where varying the salt concentrations only led to changes in the confined range that corresponded to salt types. Statistical parameter R mean was sensitive to salt types but was limited to single-type salts. Therefore, salt types largely determined the overall shapes of soil reflectance spectra rather than salt concentrations. It is therefore necessary to identify salt type before retrival of salt concentration in saline soils by use of remote sensing data.

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Section: Introductionmentioning

confidence: 99%

Study of How Salt Types Greatly Shape Soil Reflectance Spectra versus Salt Concentrations

Wang

Maina

et al. 2013

Communications in Soil Science and Plant Analysis

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“…The GWT classes were compiled following the FAO/UNEP () guidelines adopted by Masoudi et al . () and Dinka ().…”

Section: Methodsmentioning

confidence: 99%

“…The soil salinity and GW salinity classifications were done as per the FAO standard quality guidelines (Ayers and Westcot, 1994). The GWT classes were compiled following the FAO/UNEP (1984) guidelines adopted by Masoudi et al (2006) and Dinka (2010).…”

Section: Field Data Collectionmentioning

confidence: 99%

Lake Basaka Expansion: Challenges for the Sustainability of the Matahara Irrigation Scheme, Awash River Basin (Ethiopia)

Dinka

2017

Irrigation and Drainage

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The Matahara Sugar Estate (MSE), after nearly 60 years of irrigation, is experiencing the effects of waterlogging and salinization in some fields. The problem is believed to be the result of the expansion of (saline and alkaline) Lake Basaka towards the plantation fields. The objective of this study was to determine the geometry of the lake (area and shape) in roughly the past half‐ century (1957–2015) from both Landsat images and local information and then assess its negative effects on MSE's soil and water quality. Monthly groundwater (GW) depth was monitored using piezometer tubes. Water and soil samples were collected from each of the piezometer locations and analysed for important physico‐chemical parameters. The results indicate that the lake expanded approximately 47.3 km2 in the past half‐century. The soil quality was found to be very poor in plantation sections with very shallow GW depth and severe salinity conditions. The lake, as revealed by the results, is intruding into the groundwater system of MSE on the Abadir side. Assuming continuation of the past trends, the lake is expected to inundate parts of MSE in the next few years and, hence, challenge the production and productivity of MSE significantly. The lake has the potential to join the Awash River, thereby impacting all downstream irrigation developments in the basin and the livelihood of the people depending on the water resources. As the area is situated in the uppermost part of Main Ethiopian Rift Valley, other factors are expected to exacerbate its expansion even in the future. Overall, the study results present the potential damage caused by the lake to MSE and provides valuable information for the reclamation measures to be taken for the sustainability of MSE. Copyright © 2017 John Wiley & Sons, Ltd.

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“…The water samples were collected by garb and composite sampling method based on the standard guidelines (UNESCO/WHO/UNEP, 1996 and APHA, 1998) as described in (Masoudi et al, 2006). The widely accepted threshold values for classifying the suitability of water for irrigation (FAO, 1989) were used.…”

Section: Data Sources and Analysismentioning

confidence: 99%

Assessment of Irrigation Water Quality and Suitability for Irrigation in the Fincha’a Valley Sugar Estate, Nile Basin of Western Ethiopia

Kitila¹,

Gebrekidan²,

Alamrew³

2014

Sci. Technol. Arts Res. J.

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Article InformationA number of factors like geology, soil, effluents, sewage disposal and other environmental conditions in which the water stays or moves and interacts are among the factors that affect the quality of irrigation water. This study was conducted to determine t he quality and suitability of different water sources for irrigation purpose in Fincha'a Valley Sugar Estate (FVSE), within the Nile Basin of Western Ethiopia. A total of 80 water samples were collected from different sources viz., reservoir, rivers, diversion weir, canals, pump stations, drains, and groundwater of the study area. Physico-chemical properties including electrical conductivity (EC), hydrogen ion concentration (pH), total dissolved solids (TDS), major cations (Ca, Mg, K, Na) and anions (HCO3 and Cl) were analyzed in the laboratory and sodium adsorption ratio (SAR), residual sodium carbonate (RSC) and permeability Index (PI) were calculated from the major cations and anions studied for the criteria of irrigation water quality and suitability for irrigation. The study revealed that the values of EC, pH and TDS, and the amount of Cl -, HCO3, Na + , K + , Ca 2+ and Mg 2+ varied from 100 to 730 μS cm -1 , 6.6 to 7.3, 64 to 467.20 mg l -1 ,and 2.8 to 6.8, 2.04 to 5.6,3.8 to 7.8, 0.05 to 0.26, 8.4 to 19.9, 1.4 to 3.7 mmol l -1 and SAR, RSC, the PI values varied from 0.4 to 3. 9, -13 to -6.4 and 26.34 to 49. 9 %, respectively. The cationic and anionic constituents and SAR values of the samples increased from the upstream to the downstream. This is clear indication of the impacts of agricultural activities of the upstream and long-term irrigation in the downstream on the quality and suitability of water for irrigation purpose. If this trend continues, the gate for secondary salinization becomes significant. This necessitates the undertaking of certain management measures in the area for sustainability and productivity of the irrigation system in the FVSE.

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A new methodology for producing of risk maps of soil salinity, case study: Payab Basin, Iran

Cited by 17 publications

References 1 publication

Study of How Salt Types Greatly Shape Soil Reflectance Spectra versus Salt Concentrations

Study of How Salt Types Greatly Shape Soil Reflectance Spectra versus Salt Concentrations

Lake Basaka Expansion: Challenges for the Sustainability of the Matahara Irrigation Scheme, Awash River Basin (Ethiopia)

Assessment of Irrigation Water Quality and Suitability for Irrigation in the Fincha’a Valley Sugar Estate, Nile Basin of Western Ethiopia

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