Soil erosion modelling using GIS and revised universal soil loss equation approach: a case study of Guna-Tana landscape, Northern Ethiopia

被引：19

作者：

Teshome, Asirat ^{[1
]}

Halefom, Afera ^{[1
]}

Teshome, Menberu ^{[2
]}

Ahmad, Imran ^{[1
]}

Taddele, Yihun ^{[3
]}

Dananto, Mihret ^{[4
]}

Demisse, Solomon ^{[5
]}

Szucs, Peter ^{[6
]}

机构：

[1] Debre Tabor Univ, Fac Technol, Dept Hydraul & Water Resources Engn, Debre Tabor, Ethiopia

[2] Debre Tabor Univ, Dept Geog & Environm Studies, Debre Tabor, Ethiopia

[3] Texas A&M Univ, Dept Ecosyst Sci & Management, Spatial Sci Lab, 534 John Kimbrough Blvd,Room 305, College Stn, TX 77843 USA

[4] Hawassa Univ, Dept Biosyst & Environm Engn, Hawassa, Ethiopia

[5] Dilla Univ, Dept Hydraul & Water Resources Engn, Dilla, Ethiopia

[6] Univ Miskolc, Inst Environm Management, Dept Hydrogeol & Engn Geol, H-3515 Egyetemvaros, Miskolc, Hungary

来源：

MODELING EARTH SYSTEMS AND ENVIRONMENT | 2021年 / 7卷 / 01期

关键词：

GIS; RUSLE; Soil erosion; Guna-Tana landscape; Ethiopia; WATER CONSERVATION; DEPOSITION; ADOPTION;

D O I：

10.1007/s40808-020-00864-0

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

An attempt has been made in this study to quantify the soil loss rate in Guna-Tana Landscape, Ethiopia. A Digital Elevation Model (12 m by 12 m spatial resolution), rainfall data over 10 years, soil, and land cover/land use extracted were used as an input to calculate soil loss rates. GIS-based RUSLE factors were integrated and analyzed in the ArcGIS 10.3 plate form. The results showed that 12-monthly loss of soil in the study area ranges from zero in the lower, middle, upper, and steeper slope parts of the watershed to 4735 t/ha/year with a mean annual soil loss of 3627.5 t/ha/year. The overall annual soil loss in the study area is 14,335,517.8 tonnes. Approximately 681.21 ha of the area is within the extreme and very extreme erosion clusters which demand immediate controlling measures.

引用

页码：125 / 134

页数：10

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