Land use change effect on erosion prediction results using SWAT model in Lisu watershed, South Sulawesi

Lisu watershed in South Sulawesi Province is included in the second priority watershed with the carrying capacity recovery. To minimize the adverse effect of soil erosion on human society and infrastructure, concerted efforts are required to plan and implement soil and water conservation practices a...

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Bibliographic Details
Main Authors: Ardiansah, Try, Achmad, Mahmud, Barkey, Roland A.
Format: Conference Proceeding
Language:English
Subjects:
Carrying capacity
Erosion rates
Hydrology
Land management
Land use
Regional planning
Soil conservation
Soil erosion
Soil water
Water conservation
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Summary:Lisu watershed in South Sulawesi Province is included in the second priority watershed with the carrying capacity recovery. To minimize the adverse effect of soil erosion on human society and infrastructure, concerted efforts are required to plan and implement soil and water conservation practices at a sub-watershed scale. Using the SWAT model, land use changes on erosion rates in the Lisu watershed will be studied. The land management scenario used in this study is a regional spatial plan scenario (RTRW) to simulate the hydrological condition of the Lisu watershed by the regional planning of the Barru Regency government. The study indicates that the SWAT model had a good performance to simulate flow discharge with R2 and NSE values in the calibration process of 0.72 and 0.5, respectively. The study results showed that spatial plan scenarios could reduce soil loss severity classes very high, 97.66 % from the actual scenario.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0119076