Optimal Vetiver Hedgerow Spacing for Mitigating Sediment and Runoff Erosion on Steep Slopes in Malawi

This study assessed the optimum vetiver hedgerow spacing capable of reducing sediment and runoff erosion on a 17% slope. Three treatments were used: 2-meter vetiver hedgerow spacing, 4-meter vetiver hedgerow spacing, and a control plot without vetiver. Erosion pins were strategically placed on the...

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Main Authors: Judith Francesco Kamoto, Chisomo Mussa, Kondwani Banda, Nicholas Ozor
Format: Article
Language:English
Published: Agricultural Extension Society of Nigeria 2023-10-01
Series:Journal of Agricultural Extension
Subjects:
Online Access:https://www.journal.aesonnigeria.org/index.php/jae/article/view/3894
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author Judith Francesco Kamoto
Chisomo Mussa
Kondwani Banda
Nicholas Ozor
author_facet Judith Francesco Kamoto
Chisomo Mussa
Kondwani Banda
Nicholas Ozor
author_sort Judith Francesco Kamoto
collection DOAJ
description This study assessed the optimum vetiver hedgerow spacing capable of reducing sediment and runoff erosion on a 17% slope. Three treatments were used: 2-meter vetiver hedgerow spacing, 4-meter vetiver hedgerow spacing, and a control plot without vetiver. Erosion pins were strategically placed on the plots and measured periodically over a period of 6 months, accompanied by daily rainfall measurements. The findings revealed the effectiveness of vetiver hedgerows in reducing sediment erosion and runoff from the plots. Notably, the 2-meter vetiver hedgerow spacing proved more efficient in reducing erosion and minimizing soil accumulation within the plot, with an average change in erosional pin height of 1.2 cm, whereas the 4-meter hedgerow spacing exhibited higher erosion rates at 2 cm, which was statistically significant. These results underscore the importance of optimizing vetiver hedgerow spacing to effectively combat soil erosion and runoff on steep slopes.
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spelling doaj.art-b163bd798b8743eb862e7252409852122023-10-21T08:42:21ZengAgricultural Extension Society of NigeriaJournal of Agricultural Extension1119-944X2408-68512023-10-01274Optimal Vetiver Hedgerow Spacing for Mitigating Sediment and Runoff Erosion on Steep Slopes in MalawiJudith Francesco Kamoto0Chisomo Mussa1Kondwani Banda2Nicholas Ozor3Forestry Department, Lilongwe University of Agriculture and Natural Resources, MalawiEnvironment and Natural Resources Management Department, Lilongwe University of Agriculture and Natural Resources Environment and Natural Resources Management Department, Lilongwe University of Agriculture and Natural Resources African Technology Policy Studies, Nairobi, Kenya This study assessed the optimum vetiver hedgerow spacing capable of reducing sediment and runoff erosion on a 17% slope. Three treatments were used: 2-meter vetiver hedgerow spacing, 4-meter vetiver hedgerow spacing, and a control plot without vetiver. Erosion pins were strategically placed on the plots and measured periodically over a period of 6 months, accompanied by daily rainfall measurements. The findings revealed the effectiveness of vetiver hedgerows in reducing sediment erosion and runoff from the plots. Notably, the 2-meter vetiver hedgerow spacing proved more efficient in reducing erosion and minimizing soil accumulation within the plot, with an average change in erosional pin height of 1.2 cm, whereas the 4-meter hedgerow spacing exhibited higher erosion rates at 2 cm, which was statistically significant. These results underscore the importance of optimizing vetiver hedgerow spacing to effectively combat soil erosion and runoff on steep slopes. https://www.journal.aesonnigeria.org/index.php/jae/article/view/3894Vetiver hedgerow, slope, runoff, erosion, soil and water conservation
spellingShingle Judith Francesco Kamoto
Chisomo Mussa
Kondwani Banda
Nicholas Ozor
Optimal Vetiver Hedgerow Spacing for Mitigating Sediment and Runoff Erosion on Steep Slopes in Malawi
Journal of Agricultural Extension
Vetiver hedgerow, slope, runoff, erosion, soil and water conservation
title Optimal Vetiver Hedgerow Spacing for Mitigating Sediment and Runoff Erosion on Steep Slopes in Malawi
title_full Optimal Vetiver Hedgerow Spacing for Mitigating Sediment and Runoff Erosion on Steep Slopes in Malawi
title_fullStr Optimal Vetiver Hedgerow Spacing for Mitigating Sediment and Runoff Erosion on Steep Slopes in Malawi
title_full_unstemmed Optimal Vetiver Hedgerow Spacing for Mitigating Sediment and Runoff Erosion on Steep Slopes in Malawi
title_short Optimal Vetiver Hedgerow Spacing for Mitigating Sediment and Runoff Erosion on Steep Slopes in Malawi
title_sort optimal vetiver hedgerow spacing for mitigating sediment and runoff erosion on steep slopes in malawi
topic Vetiver hedgerow, slope, runoff, erosion, soil and water conservation
url https://www.journal.aesonnigeria.org/index.php/jae/article/view/3894
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AT kondwanibanda optimalvetiverhedgerowspacingformitigatingsedimentandrunofferosiononsteepslopesinmalawi
AT nicholasozor optimalvetiverhedgerowspacingformitigatingsedimentandrunofferosiononsteepslopesinmalawi