The success of recent land management efforts to reduce soil erosion in northern France

Frankl, Amaury; Prêtre, Vincent; Nyssen, Jan; Salvador, Pierre‐Gil

doi:10.1016/j.geomorph.2017.11.018

Cited by 30 publications

(28 citation statements)

References 32 publications

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“…Accelerated soil erosion has been an enduring problem since agriculture began, and is considered one of the major threats to soil ecosystem services [1,2]. Soil erosion is a serious problem in a variety of climatic areas, but especially in the semi-arid and semi-humid areas of the world [3], such as Europe [4], central Asia [5], and China [6]. Soil and water loss degrades the soil, causing serious problems for sustainable agriculture and the environment due to regional deposition outside the source site [7,8], which directly affects sustainable land use.…”

Section: Introductionmentioning

confidence: 99%

“…Human factors also have a greater impact on soil erosion. Artificially reclaimed land destroys soil stability, and improper human activities, such as deforestation, steep slopes, overgrazing, and inappropriate farming practices, severely weaken soil erosion resistance, causing the rapid development of destructive erosion [4,23]. Tillage erosion is one of the more common types of erosion on farmland, of which soil erosion on sloping farmland is more common and serious [24,25].…”

Section: Introductionmentioning

confidence: 99%

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Effects of Soil and Water Conservation Measures on Runoff and Sediment Yield in Red Soil Slope Farmland under Natural Rainfall

et al. 2020

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This paper analyzes the relationship between runoff, soil erosion, sediment particles, and natural rainfall characteristics on sloping farmland in the red soil region of southern China. The surface runoff and soil loss data were measured on runoff plots during 66 natural rainfall events from 2015 to 2018 in Jiangxi Province. The results show that the maximum 30-min rainfall intensity (I 30 ) is positively related to the runoff depth, soil erosion modulus, and sediment mean weight diameter (MWD). With the increase in I 30 during rainfall, the coarse sand content increases, and the fine sand content decreases. The average annual runoff of slope tillage, hedgerows with slope tillage, straw mulching with conventional tillage, and contour tillage decreased by 32.56%, 65.87%, 83.99%, and 87.30%, respectively, compared with that of bare land. Soil and water conservation measures can significantly reduce slope runoff. The flow-reduction effect of contour tillage and straw mulching with conventional tillage increases as I 30 increases, and the flow-reduction effect of hedgerows with slope tillage first increases and then decreases as I 30 increases. The coefficients of variation and standard deviations of the flow-reduction effects of different soil and water conservation measures decrease with increasing I 30 . The average annual soil erosion moduli of slope tillage, hedgerows with slope tillage, contour tillage, and straw mulching with conventional tillage decreased by 59.33%, 91.29%, 97.17%, and 98.45%, respectively, compared with that of bare land. Soil and water conservation measures can significantly reduce the sediment yield on slopes. The flow-reduction effects of hedgerows with slope tillage, contour tillage, and straw mulching with conventional tillage all increase with I 30 , and their coefficients of variation and standard deviations decrease with I 30 . The average single rainfall erosion sediment MWD of decreased by 5.91%, 8.33%, 9.69%, and 13.32%, respectively, compared with that of bare land. Straw mulching with conventional tillage can significantly reduce the MWD of erosion sediment, effectively reduce the content of coarse sand, and increase the content of fine sand. Straw mulching with conventional tillage is a very good soil and water conservation measure for sloping farmland. It not only has the best effect on reducing flow and sediment, but also can effectively intercept coarse sand and reduce the MWD of erosion sediment.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of Soil and Water Conservation Measures on Runoff and Sediment Yield in Red Soil Slope Farmland under Natural Rainfall

et al. 2020

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“…Among the most common types of erosional processes, we can distinguish erosion by water [2], wind erosion [3], and harvest erosion [4]. At a European level, significant research is conducted to assess [5] and reduce [6] the negative effects of soil erosion. One of the most erosive processes acknowledged for water erosion is gullying [7].…”

Section: Introductionmentioning

confidence: 99%

Is Overgrazing Really Influencing Soil Erosion?

Nicu

2018

Water

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Soil erosion is a serious problem spread over a variety of climatic areas around the world. The main purpose of this paper is to produce gully erosion susceptibility maps using different statistical models, such as frequency ratio (FR) and information value (IV), in a catchment from the northeastern part of Romania, covering a surface of 550 km 2 . In order to do so, a total number of 677 gullies were identified and randomly divided into training (80%) and validation (20%) datasets. In total, 10 conditioning factors were used to assess the gully susceptibility index (GSI); namely, elevation, precipitations, slope angle, curvature, lithology, drainage density, topographic wetness index, landforms, aspect, and distance from rivers. As a novelty, overgrazing was added as a conditioning factor. The final GSI maps were classified into four susceptibility classes: low, medium, high, and very high. In order to evaluate the two models prediction rate, the AUC (area under the curve) method was used. It has been observed that adding overgrazing as a contributing factor in calculating GSI does not considerably change the final output. Better predictability (0.87) and success rate (0.89) curves were obtained with the IV method, which proved to be more robust, unlike FR method, with 0.79 value for both predictability and success rate curves. When using sheepfolds, the value decreases by 0.01 in the case of the FR method, and by 0.02 in the case of the success rate curve for the IV method. However, this does not prove the fact that overgrazing is not influencing or accelerating soil erosion. A multi-temporal analysis of soil erosion is needed; this represents a future working hypothesis.

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“…Recent work in northern France suggests that vegetation barriers ‘fascines’ effectively interrupt flow along depressions in the arable landscape and encourage sediment deposition. These are particularly relevant where field boundaries allow through‐flow (Frankl, Pretre, Nyssen, & Salvador, ), as in the Rother catchment (Figure ). Where connectivity is high, as in the catchment monitored in Norfolk, the problems of reducing flow either over the surface or through field drains are significant.…”

Section: Mitigationmentioning

confidence: 99%

Off‐site impacts of soil erosion and runoff: Why connectivity is more important than erosion rates

Boardman

Vandaele

Evans

et al. 2019

Soil Use and Management

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Off-site impacts of soil erosion are of greater social and economic concern in Western Europe than on-site impacts. They fall into two related categories: muddy flooding of properties and ecological impacts on watercourses because of excessive sedimentation and associated pollutants. Critical to these impacts is the connectedness of the runoff and sediment system between agricultural fields and the river system. We argue that well-connected systems causing off-site damage are not necessarily related to areas of high erosion rates; emphasis should therefore be on the way in which connections occur. In temperate, arable systems, important elements of connectivity are anthropogenic in origin: roads, tracks, sunken lanes, field drains, ditches, culverts and permeable field boundaries. Mapping these features allows us to understand how they affect runoff and modify its impacts, to design appropriate mitigation measures and to better validate model predictions. Published maps (digital and paper) do not, by themselves, give sufficient information. Field mapping and observation, aided by remote sensing, are also necessary. K E Y W O R D Sconnectivity, field mapping, off-site impacts, runoff and sediment flux, soil erosion

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The success of recent land management efforts to reduce soil erosion in northern France

Cited by 30 publications

References 32 publications

Effects of Soil and Water Conservation Measures on Runoff and Sediment Yield in Red Soil Slope Farmland under Natural Rainfall

Effects of Soil and Water Conservation Measures on Runoff and Sediment Yield in Red Soil Slope Farmland under Natural Rainfall

Is Overgrazing Really Influencing Soil Erosion?

Off‐site impacts of soil erosion and runoff: Why connectivity is more important than erosion rates

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