Spatial variability of exchangeable sodium, electrical conductivity, soil pH and boron content in salt- and sodium-affected areas of the Igdir plain (Turkey)

Ardahanlioglu, Osman; Öztaş, Taşkın; Evren, Salih; Yilmaz, Hasbi; Yildirim, Zeynep N

doi:10.1006/jare.2002.1073

Cited by 43 publications

(23 citation statements)

References 8 publications

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“…The scholars have noticed the heterogeneous distribution of soil salinity-sodicity under microtopography and carried out a lot of studies, such as soil moisture transform and distribution characteristics of soil salt under microtopography [10,15] and analysis of spatial variation of soil salinity-sodicity [16][17][18]. It is shown that the spatial variation of soil salinity is mainly affected by the environmental factors (the topography, hydrological process and climate conditions).…”

Section: Introductionmentioning

confidence: 99%

Variations on Soil Salinity and Sodicity and Its Driving Factors Analysis under Microtopography in Different Hydrological Conditions

Yang

et al. 2016

Water

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Abstract:Over three million hectares of salt-affected soils characterized with high salinity and sodicity caused serious land degradation in Songnen Plain, northeast China. Soil salinity-sodicity heterogeneous distribution under microtopography is usually influenced by several environmental factors. The side direction movement of soil water driven by water from depression is the key factor that aggravates the soil salinization under microtopography in dry condition. In this study, the differences in surface soil salinity-sodicity (0-10 cm) between dry year and wet year were compared, and the relationship between soil salinity-sodicity and environment factors such as ground elevation, surface ponding time, surface ponding depth, and soil moisture at four soil layers (0-10, 10-30, 30-60, and 60-100 cm) were analyzed using redundancy analysis (RDA) and simple correlation analysis (Pearson analysis) for two different hydrological years. Analyzed soil salinity-sodicity parameters include soluble ions (Na + , K + , Ca 2+ , Mg 2+ , CO 3 2´, HCO 3´, Cl´and SO 4 2´) , salt content (SC), electrical conductivity (EC), sodium adsorption ratio (SAR), and pH. Results showed that values of SAR, Cl´, and SO 4 2´w ere significantly higher in dry year than in wet year, while Ca 2+ , Mg 2+ , K + , and HCO 3´s howed the opposite results. Values of Na + , CO 3 2´, and EC were significantly higher at higher ground elevation gradient (20-40 cm) in dry year than wet year. Redundancy analysis indicated that spatial distributions and variations of salinity and sodicity in surface soil layer were related with environmental factors of ponding depth, ponding time and ground elevation in wet year, and they were related with ground elevation, ponding depth, ponding time, and soil moisture at 30-60 and 60-100 cm soil layer in dry year. Ponding depth and ground elevation rank first and second as the influential factors of the spatial distribution and variation of soil salinity-sodicity in wet year. However in dry year, primary and secondary influential factors are ground elevation and soil moisture at 60-100 cm soil layer.

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Section: Introductionmentioning

confidence: 99%

Variations on Soil Salinity and Sodicity and Its Driving Factors Analysis under Microtopography in Different Hydrological Conditions

Yang

et al. 2016

Water

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“…Essa inconveniência resulta na inibição do crescimento em altura, diâmetro do caule, área foliar, acúmulo de biomassa e produção das frutíferas, em geral, inclusive do mamoeiro CAVALCANTE, 2006). Uma vez que esses locais são potencialmente tendenciosos a provocar o acúmulo de sais e sódio (ARDAHANLIOGLU et al, 2003), interferindo no crescimento e desenvolvimento das plantas (TAIZ;ZEIGER, 2009) FERREIRA-SILVA et al, 2008).…”

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Crescimento inicial de Carica papaya sob irrigação com águas salinas em solo com biofertilizante bovino

et al. 2012

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“…It covers 68,000 ha of irrigated land and has a mean slope of 0.1%. The mean altitude is 850 m. About 36% of its soils (25,000 ha) suffer from some degree of salinity and/or alkalinity (Ardahanlioglu et al, 2003). The mean annual precipitation, temperature, and relative humidity of the area are 253 mm, 11.7ºC, and 71% respectively (Smith, 1993).…”

Section: Introductionmentioning

confidence: 99%

Short communication. The effect of freeze-thaw cycles on soil aggregate stability in different salinity and sodicity conditions

Şahin

Anapalı

2007

Span. j. agric. res.

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Freezing and thawing affect soil aggregate stability. Understanding the effects of freezing and thawing processes on aggregate stability is necessary for the development of strategies for managing saline-sodic soils. This study was performed to determine the effects of freezing and thawing cycles (two, four, and six) on wet aggregate stability in six soils of different salinity and sodicity (54 dS/m, 11.7%; 49 dS/m, 11.8%; 53 dS/m, 31.7%; 85 dS/m, 39.7%; 59 dS/m, 13.9%; 68 dS/m, 36.8%, respectively) and three different aggregate sizes (< 1, 1-2, and 2-4 mm). The experiments were conducted under laboratory conditions using disturbed and non-cropped soil samples. In soils with a high percentage of exchangeable sodium and high electrical conductivity, the effect of freeze-thaw cycles on the wet aggregate stability was not significant. However, when the electrical conductivity was high and the percentage exchangeable sodium relatively low, wet aggregate stability was significantly reduced by the freeze-thaw cycles. Moreover, for aggregate sizes of 1-2 and 2-4 mm, a significant reduction (P

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Spatial variability of exchangeable sodium, electrical conductivity, soil pH and boron content in salt- and sodium-affected areas of the Igdir plain (Turkey)

Cited by 43 publications

References 8 publications

Variations on Soil Salinity and Sodicity and Its Driving Factors Analysis under Microtopography in Different Hydrological Conditions

Variations on Soil Salinity and Sodicity and Its Driving Factors Analysis under Microtopography in Different Hydrological Conditions

Crescimento inicial de Carica papaya sob irrigação com águas salinas em solo com biofertilizante bovino

Short communication. The effect of freeze-thaw cycles on soil aggregate stability in different salinity and sodicity conditions

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