Gully Erosion Impacts on Soil Loss and Crop Yield in Northwest Ethiopia

The Genbo Wonz Watershed in northwest Ethiopia was studied to quantify gully erosion impacts over three decades. Tsegaye Yazie from the Amhara Agricultural Research Institute used geometrical measurements, field observations, and satellite imagery to assess 22 gullies. The research found these gullies caused a total soil loss of approximately 340,957 tons, converting about 10 hectares of agricultural land to unproductive use.

Use Cases

• Modeling soil loss rates based on gully density and volume measurements.
• Assessing agricultural land competition based on land conversion from productive to unproductive states.
• Estimating crop yield reduction based on reported losses of Teff grain and animal forage.
• Evaluating the impact of road construction and water conservation practices on gully formation.

Strengths

• Provides specific quantitative findings, including a total soil loss of ~340,957 tons and an annual erosion rate of ~62 t ha⁻¹.
• Analysis is based on multiple data sources: geometrical measurements, field observations, and satellite imagery for 22 gullies.
• Quantifies direct agricultural impacts, including the loss of 24 t yr⁻¹ of Teff grain yield and 14 t yr⁻¹ of animal forage.

Limitations

• Row count and column-level documentation are absent; field semantics must be inferred after download.
• The dataset's specific file formats and size are unknown, which may limit immediate usability.
• The data reflects a specific geographic and temporal context, which may limit generalizability.

Provenance

Source

Tsegaye Yazie, Amhara Agricultural Research Institute

Collection Method

Geometrical gully dimension measurements, field observations, and satellite imagery assessment.

Time Range

Three decades (specific years unknown)

Geography

Genbo Wonz Watershed, northwest highlands of Ethiopia