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Shallow Water Table-induced Soil Degradation of a Lacustrine Cultivated Soil

Article

Last updated: 01 Jan 2025

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Tags

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Abstract

Land degradation is a world challenge for sustainable agricultural production and food security. This study aimed at evaluating the impact of shallow water table conditions on the soil degradation rate of Abis Experimental Research Station, Alexandria governorate, Egypt. Soil salinization, sodication and water logging conditions were assessed through collecting surface (0-30 cm) and subsurface (30-60 cm) soil samples and water table samples in 2016. The data obtained were compared with a previous survey study in 2007 and the salinization, sodication and water logging index rates were calculated. Generally, mean values of EC (dS m-1) and ESP (%) increased and water table depth decreased with high spatial variability and more areas suffered from salinity and sodicity in 2016 compared to 2007. Within a period of nine years, 46% and 47% of the cropland area were converted from “non to slightly saline" to “moderately to highly saline" soil in the surface and subsurface layers, respectively. About 45% and 46% of the area were deteriorated and turned into sodic soils in the surface and subsurface layers, respectively. The water-table intruded much more to the soil surface where 95% of the cropland area had water-table depth of 50-100 cm. The salinization rate index was < 2 dS m-1/year (Non to slight) for the all observations. 35% of the area showed moderate sodication rate (1-2 increase in ESP/year) and only 4% with high sodication rate (2-3 increase in ESP/year). A moderate (1-3 cm decrease/year) and high (3-5 cm decrease/year) water logging rates were observed in 46% and 28% of the area, respectively, which were mostly found in the Eastern part of Abis farm.

DOI

10.21608/ejss.2019.6138.1217

Keywords

soil degradation, water logging, Soil salinization and sodication

Authors

First Name

Osama

Last Name

Abd El-kawy

MiddleName

-

Affiliation

Soil and Water Dept., Faculty of Agriculture, Alexandria University

Email

osa_rm@yahoo.com

City

-

Orcid

-

First Name

Ramzy

Last Name

Hedia

MiddleName

-

Affiliation

Soil and water science, Alexandria University

Email

ramzyhedia@yahoo.com

City

Alexandria

Orcid

-

Volume

58

Article Issue

4

Related Issue

4959

Issue Date

2018-12-01

Receive Date

2018-11-11

Publish Date

2018-12-01

Page Start

463

Page End

473

Print ISSN

0302-6701

Online ISSN

2357-0369

Link

https://ejss.journals.ekb.eg/article_26223.html

Detail API

https://ejss.journals.ekb.eg/service?article_code=26223

Order

10

Type

Original Article

Type Code

19

Publication Type

Journal

Publication Title

Egyptian Journal of Soil Science

Publication Link

https://ejss.journals.ekb.eg/

MainTitle

Shallow Water Table-induced Soil Degradation of a Lacustrine Cultivated Soil

Details

Type

Article

Created At

22 Jan 2023