Groundwater Irrigation Quality Index (IWQI) for the Collo Plain, Algeria

Thirty groundwater samples from the Collo Plain in northeastern Algeria were analyzed for major physicochemical parameters to compute an Irrigation Water Quality Index (IWQI). The dataset includes IWQI values ranging from 35.5 to 87.9 and spatial distribution maps created using GIS and geostatistical interpolation. It was authored by Faouzi Zahi and last updated in May 2026.

Use Cases

• Assess irrigation water suitability based on calculated IWQI values and physicochemical parameters.
• Map spatial patterns of groundwater quality degradation using geostatistical interpolation.
• Identify drivers of water quality decline, such as agricultural practices and geogenic factors, based on the study's findings.

Strengths

• Includes 30 groundwater samples with measured pH (6.90-7.90) and electrical conductivity (1356-3388 μS/cm).
• Provides a calculated Irrigation Water Quality Index (IWQI) with values from 35.5 to 87.9 and a mean of 56.8.
• Spatial distribution of irrigation water quality is mapped for the Collo Plain.

Limitations

• The dataset is very small at 9.5 KB, indicating limited scope.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

figshare

Collection Method

Hydrochemical analysis of groundwater samples integrated with GIS, remote sensing, and the Analytical Hierarchy Process (AHP).

Freshness

Last updated 2026-05-11 17:26:57; freshness should be verified.

Geography

Collo Plain, northeastern Algeria.