Soil and water conservation management on hill slopes in Southwest Ethiopia. I. Effects of soil bunds on surface runoff, erosion and loss of nutrients

Wolka, Kebede; Biazin, Birhanu; Martinsen, Vegard; Mulder, Jan

doi:10.1016/j.scitotenv.2020.142877

Cited by 65 publications

(39 citation statements)

References 68 publications

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“…Due to dense forest, grass, and shrub coverage, no runoff occurred on plot #10 from 2014 to 2020, despite having a steep slope (Table 1). The runoff and SLR reduction efficiencies were comparable to the reported results from the literature [43][44][45]. As expected, high-coverage grass was more efficient in reducing H and SLR than low-coverage grass.…”

Section: Impact Of Soil Conservation Measuressupporting

confidence: 87%

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Responses of Runoff and Soil Loss on Slopes to Land Use Management and Rainfall Characteristics in Northern China

Fang

2021

IJERPH

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Soil conservation measures are widely used to control soil erosion and sediment loss; however, their proper usage relies on a deep understanding of the responses of runoff and sediment loss to land management and rainfall characteristics. In the present study, a long-term (2014–2020) monitored dataset derived from ten runoff plots in the upstream catchment of the Miyun Reservoir in Beijing, China, was used to study runoff and sediment loss responses to land use management and rainfall characteristics. The study results show that plots with no soil conservation measures had the highest runoff depth of 75 mm and suffered the highest sediment loss, at a rate of 3200 t km−2 yr−1. The terraced and vegetated plots generated lower runoff depths, with soil loss rates less than 213.0 t km−2 yr−1. With the exception of the contour tillage plots on steep slopes, the vegetation and engineering measures can efficiently reduce runoff and sediment loss, with both runoff and sediment reduction efficiencies higher than 76%. Statistical analyses indicate that, on the plots of bare soil and cultivation without soil conservation measures, runoff and sediment loss were mainly affected by the maximum 30 min rainfall intensity. However, on the plots with soil conservation measures, they were mainly determined by rainfall amount and duration. The sediment loss rate can be well fitted with the runoff depth using a power function. Based on the analyses, water-saving soil conservation measures are recommended for the study area. In addition, the size of terraces should be reconsidered on gentle slopes, and the coverage of forest, shrubs, and grass on slopes should be reduced, thus allowing for more surface runoff generation to ensure drinking water safety. In general, for the study area, soil conservation measures are required on the bare soil and cultivated slopes.

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Section: Impact Of Soil Conservation Measuressupporting

confidence: 87%

“…This indicates that the vegetation measures are less efficient in intercepting runoff than the engineering measures. The correlation coefficients were much lower for the plots covered with both vegetation and engineering measures [ 45 ].…”

Section: Resultsmentioning

confidence: 99%

Responses of Runoff and Soil Loss on Slopes to Land Use Management and Rainfall Characteristics in Northern China

Fang

2021

IJERPH

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“…Soil erosion severely degrades agricultural lands, through reducing soil depth, soil nutrients, and decreasing agricultural production [1][2][3][4]. Each year, around 36-75 billion top soil was lost in the world, resulting in severe nutrient loss [5], with an annual reduction in crop yields of 0.4-0.8% [6,7].…”

Section: Introductionmentioning

confidence: 99%

Using WaTEM/SEDEM to Configure Catchment Soil Conservation Measures for the Black Soil Region, Northeastern China

Fang

2021

Sustainability

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In recent years, to combat soil erosion, large-scale soil conservation measures have been implemented in the world. Evaluation of the integrated catchment management is urgently required. In the present study, soil erosion and sediment yield under 24 scenarios were predicted, based on the water and tillage erosion model and sediment delivery deposition model (WaTEM/SEDEM). The current catchment management was not ideal, with a catchment soil loss rate (SLR) of 599.88 t km−2 yr−1 and a sediment yield of 240.00 t km−2 yr−1. The catchment management with contour tillage on <3° slopes, hedgerow planting on 3–5° slopes, terracing on 5–8° slopes, and forestation on >8° slopes with trenches along the forest and dams in gullies was the best catchment management to control soil loss, with catchment SLR that was less than the tolerable value of 200 t km−2 yr−1. However, the SLR on the <3° slopes was still higher than the tolerable value. It is not enough to control soil loss by only implementing contour tillage measure on <3° slopes, and other measures should be further implemented on these slopes. In gullies, more measures should be implemented to prevent sediment flowing out of the catchments, in Northeastern China.

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“…Cropping system has a more positive impact on soil health than the perennial vegetation system ( Zeiss, 2000;Keesstra et al, 2016;Yang et al, 2020). The intensity of the soil loss process such as erosion and landslide decreases organic matter content and reduces soil fertility, affecting agricultural production (Maltsev and Yermolaev, 2020;Sadeghi et al, 2020;Wang et al, 2020;Wolka et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Even though coffee plant is planted, soil loss still can occur because the soil loss is also influenced by the soil condition and planting system (Ramos-Scharrón and Figueroa-Sánchez, 2017). Soil which is intensively cultivated will have greater of soil loss than soil with minimum cultivation (Bonfanti et al, 1997;Evrard et al, 2010;Peter et al, 2014;Tang et al, 2019;Meliho et al, 2019;Wolka et al, 2020;Golosov et al, 2021). The intensive of soil loss is affected by the agriculture management system, including the type of vegetation planted in the study area.…”

Section: Introductionmentioning

confidence: 99%

The effectiveness of cover crops on soil loss control in Gede catchment of Malang Regency, Indonesia

Muddarisna

Yuniwati

Masruroh

et al. 2020

J.Degrade.Min.Land Manage.

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Cover crop is an important factor which affects soil loss. The lost of soil potential is affected by plant morphology. The aim of this study was to elaborate on the effectiveness of the type of cover crops to soil loss in the same morphology and characteristic of soil. The study was carried out by applying erosion plots. Soil loss measurements were conducted four times in each demonstration plot. Soil loss for each plot was analyzed in the laboratory. The result showed that the most erodible soil with the highest amount of soil loss was in the pre onion plot and the most effectiveness for soil loss control was carrot plot. The amounts of soil loss for carrot, cabbage, and pre-onion were 0.040991 kg/8 x 10-4ha, 0.069901 kg/8 x 10-4ha, and 0.077800 kg/8 x 10-4ha, respectively. The highest runoff of 60.554 L/8 x 10-4ha, was observed at the pre onion plot. Based on the result, the most effective cover crop for soil control was the carrot. The important parts of cover crops which influenced soil loss were the shape of shade leaves and type of roots.

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Soil and water conservation management on hill slopes in Southwest Ethiopia. I. Effects of soil bunds on surface runoff, erosion and loss of nutrients

Cited by 65 publications

References 68 publications

Responses of Runoff and Soil Loss on Slopes to Land Use Management and Rainfall Characteristics in Northern China

Responses of Runoff and Soil Loss on Slopes to Land Use Management and Rainfall Characteristics in Northern China

Using WaTEM/SEDEM to Configure Catchment Soil Conservation Measures for the Black Soil Region, Northeastern China

The effectiveness of cover crops on soil loss control in Gede catchment of Malang Regency, Indonesia

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