Assessment of Soils of Waterlogged Areas in Relation to Salinity and Sodicity in Irrigated Low Land Soils of Raya Valley, Northern Ethiopia

Research areas:

• Volume 6,Issue 2,Mar.,2019

Year:

2019

Type of Publication:

Article

Keywords:

Salt Affected Soil Classes, Soil Properties, Waterlogging, Raya Valley

Authors:

Birhane Hailu; Lemma Wogi; Solomon Tamiru

Journal:

IJRIES

Volume:

6

Number:

2

Pages:

11-19

Month:

March

ISSN:

2394-1375

BibTex:

@article{185, author = "Birhane Hailu and Lemma Wogi and Solomon Tamiru", abstract = "Assessment of waterlogged irrigated areas in relation to soil salinity/sodicity plays a great role for proper management of irrigated fields. Studies on soils of waterlogged command irrigated low land areas in relation to salinity/sodicity were conducted during 2016 at Raya Valley with the objectives to characterize the salinity/sodicity status of soils of waterlogged areas and the causes of waterlogging in Raya Valley. Based on the field reconnaissance survey, sampling points for surface and profile soils were identified. Accordingly, waterlogged surface and profile soils were collected using systematic sampling technique. Samples were analyzed for their selected physico-chemical properties and salinity/sodicity parameters. The soil textural class was dominated by sandy loam and clay loam in surface soils of Tumuga and Gerjale sites, respectively. The first two layers (0-30 and 30-60 cm) of Tumuga site were grouped into silt clay loam, while, the second two layers (60-100 and 100-130 cm) were grouped into silt loam. All layers of Gerjale site were dominated by loam. Silt was the dominant fraction in both sites. The mean pHe value in both sites indicated alkalinity reaction. The magnitude of the exchangeable cations in all sites were in the order of Ca{\&}gt; Mg{\&}gt; Na {\&}gt; K. All sites were within the range of moderate to very high and very high with respect to PBS. The probable cause of water logging could be the shallow ground water depth. Continuous assessment and monitoring to avoid occurrence of soil salinity/ sodicity, and surface and subsurface drainage systems should be installed in both sites of the waterlogged areas", issn = "23941375", journal = "IJRIES", keywords = "Salt Affected Soil Classes, Soil Properties, Waterlogging, Raya Valley", month = "March", number = "2", pages = "11-19", title = "{A}ssessment of {S}oils of {W}aterlogged {A}reas in {R}elation to {S}alinity and {S}odicity in {I}rrigated {L}ow {L}and {S}oils of {R}aya {V}alley, {N}orthern {E}thiopia", volume = "6", year = "2019", }

Abstract:

Assessment of waterlogged irrigated areas in relation to soil salinity/sodicity plays a great role for proper management of irrigated fields. Studies on soils of waterlogged command irrigated low land areas in relation to salinity/sodicity were conducted during 2016 at Raya Valley with the objectives to characterize the salinity/sodicity status of soils of waterlogged areas and the causes of waterlogging in Raya Valley. Based on the field reconnaissance survey, sampling points for surface and profile soils were identified. Accordingly, waterlogged surface and profile soils were collected using systematic sampling technique. Samples were analyzed for their selected physico-chemical properties and salinity/sodicity parameters. The soil textural class was dominated by sandy loam and clay loam in surface soils of Tumuga and Gerjale sites, respectively. The first two layers (0-30 and 30-60 cm) of Tumuga site were grouped into silt clay loam, while, the second two layers (60-100 and 100-130 cm) were grouped into silt loam. All layers of Gerjale site were dominated by loam. Silt was the dominant fraction in both sites. The mean pHe value in both sites indicated alkalinity reaction. The magnitude of the exchangeable cations in all sites were in the order of Ca> Mg> Na > K. All sites were within the range of moderate to very high and very high with respect to PBS. The probable cause of water logging could be the shallow ground water depth. Continuous assessment and monitoring to avoid occurrence of soil salinity/ sodicity, and surface and subsurface drainage systems should be installed in both sites of the waterlogged areas

Full text: IJRIES_185_FINAL.pdf Online version