Effectiveness of vegetation barriers for marly sediment trapping

Rey, Freddy

doi:10.1002/esp.1108

Cited by 58 publications

(47 citation statements)

References 21 publications

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“…These heterogeneous patterns are very important in controlling water runoff and soil loss (Rey, 2004), and some research (Valentin et al, 1999;Martínez Raya et al, 2006) documented the banded or stripped pattern of vegetation would reduce much more water runoff and increase productivity. Thus we should pay attention on the vegetation pattern design for vegetation restoration (Ma et al, 2004b;Li et al, 2006c).…”

Section: Discussionmentioning

confidence: 99%

Influence of three plant species with different morphologies on water runoff and soil loss in a dry-warm river valley, SW China

et al. 2008

Forest Ecology and Management

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Section: Discussionmentioning

confidence: 99%

Influence of three plant species with different morphologies on water runoff and soil loss in a dry-warm river valley, SW China

et al. 2008

Forest Ecology and Management

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“…With a longer flow path to the sinks, there is a higher probability that sediment will be trapped by impedances (Kirkby, 2001;Kirkby et al, 2002;Blanco-Canqui et al, 2004;Rey, 2004) and, therefore, the SEAs close to sinks contribute more sediment. As illustrated by the distribution of SW (Fig.…”

Section: Catchment Connectivitymentioning

confidence: 99%

Assessing sedimentological connectivity using WATEM/SEDEM model in a hilly and gully watershed of the Loess Plateau, China

Liu

2016

Ecological Indicators

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a b s t r a c tSedimentological connectivity is an important issue in soil erosion and sediment transport. Landscape patterns, in combination with the rainfall regime, are known to shape such sedimentological connectivity. The quantification of sedimentological connectivity provides a link between sediment delivery and landscape pattern. There are two categories of connectivity: structural connectivity, which describes the physical coupling of landscape units, and functional connectivity, which delineates the linkage among landscape elements maintained by material transport. To quantify sedimentological connectivity, both the physical coupling of, and material transfer between, the various landscape components need to be assessed. This study quantifies the sedimentological connectivity of a headwater catchment in the Loess Plateau of China using the soil erosion and sediment delivery model (WATEM/SEDEM). Based on the model, two indicators of connectivity were developed: the area of sedimentologically effective catchment area (SEA) that contributes sediment to the sinks, and the minimum sediment output of locations on the flow path that link sources and sinks. This approach effectively represents the annual status of catchment-scale sedimentological connectivity and, furthermore, the simple structure and readily available input data make it highly practicable. However, for larger river systems in which sediment transport between sources and sinks occur over longer time scales and larger spatial scales, we suggest different techniques for quantifying the sediment flux and parameters delineating the physical coupling of landscape units.

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“…There is runoff generation and sediment export from vegetation patches, although it is rather low compared to that of bare soil. In addition, the position of source areas is an important factor in the hydrological process (Rey, 2004;Bracken and Croke, 2007). Serious soil erosion will occur in the source areas with a larger runoff supply area in the upper slope.…”

Section: Cover Pattern Measurementmentioning

confidence: 99%

“…Moved soil particles also have more opportunity to deposit or be trapped by vegetation barriers (Wilcox et al, 2003;Cammeraat, 2004). It was reported that vegetation with a given area positioned near the bottom of a slope is more effective in retaining sediment and runoff at the plot and hillslope scale (Rey, 2004;Li et al, 2008;Ding et al, 2010). These lead to the limited utility of these indices.…”

Section: Efficiency Of Indicesmentioning

confidence: 99%

Linking vegetation cover patterns to hydrological responses using two process-based pattern indices at the plot scale

Liu

Lü

et al. 2013

Sci. China Earth Sci.

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Vegetation cover pattern is one of the factors controlling hydrological processes. Spatially distributed models are the primary tools previously applied to document the effect of vegetation cover patterns on runoff and soil erosion. Models provide precise estimations of runoff and sediment yields for a given vegetation cover pattern. However, difficulties in parameterization and the problematic explanation of the causes of runoff and sedimentation rates variation weaken prediction capability of these models. Landscape pattern analysis employing pattern indices based on runoff and soil erosion mechanism provides new tools for finding a solution. In this study, the vegetation cover pattern was linked with runoff and soil erosion by two previously developed pattern indices, which were modified in this study, the Directional Leakiness Index (DLI) and Flowlength. Although they use different formats, both indices involve connectivity of sources areas (interpatch bare areas). The indices were revised by bringing in the functional heterogeneity of the plant cover types and the landscape position. Using both artificial and field verified vegetation cover maps, observed runoff and sediment production on experiment plots, we tested the indices' efficiency and compared the indices with their antecedents. The results illustrate that the modified indices are more effective in indicating runoff at the plot/hillslope scale than their antecedents. However, sediment export levels are not provided by the modified indices. This can be attributed to multi-factor interaction on the hydrological process, the feedback mechanism between the hydrological function of cover patterns and threshold phenomena in hydrological processes.

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Effectiveness of vegetation barriers for marly sediment trapping

Cited by 58 publications

References 21 publications

Influence of three plant species with different morphologies on water runoff and soil loss in a dry-warm river valley, SW China

Influence of three plant species with different morphologies on water runoff and soil loss in a dry-warm river valley, SW China

Assessing sedimentological connectivity using WATEM/SEDEM model in a hilly and gully watershed of the Loess Plateau, China

Linking vegetation cover patterns to hydrological responses using two process-based pattern indices at the plot scale

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