Effects of plant traits and their divergence on runoff and sediment retention in herbaceous vegetation

Kervroëdan, Léa; Armand, Romain; Saunier, Mathieu; Faucon, Michel‐Pierre

doi:10.1007/s11104-019-04142-6

Cited by 24 publications

(18 citation statements)

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“…This hypothesis is consistent with results showing that the presence of functional types with larger stem diameters would influence the water path within a vegetation and, thus, displayed no effect of community functional diversity [15]. These findings are also coherent with primary results obtained on herbaceous vegetation, showing the negative influence of plants with low stem density, large diameters, and low leaf density, by reducing the hydraulic roughness and sediment retention within multi-specific communities [16]. The perspective is to study a gradient of functional structure, using a variation of abundances of large stem diameters, to confirm and show the idiosyncratic effects of functional diversity on water flow.…”

Section: Non-additive Effect Of the Functional Diversity On Hydraulicsupporting

confidence: 91%

“…The results emphasized the effects of the community-weighted trait of F. arundinacea on hydraulic roughness being the only species that was significantly different from the other communities, which would be led by the different CW leaf densities (0-20 cm and 0-10 cm), which is a major trait that is known to positively impact hydraulic roughness [26]. While similar effects of the dominance of community-weighted traits on soil retention have been observed in mixtures of different functional types [15] and herbaceous vegetation [16], additive effects of functional diversity on erosion rates were also shown [14]. These opposing effects of functional diversity on the hydraulic roughness and erosion rates could be explained by the idiosyncratic effects, which represent the contrasting effects of functional diversity affected by species and trait interactions, and soil-plant interactions.…”

Section: Non-additive Effect Of the Functional Diversity On Hydraulicmentioning

confidence: 86%

“…The effect of plant functional diversity on soil erosion processes have recently appealed to the interest of the scientific community that studies plant-soil erosion processes, although the results of the functional diversity effects are contentious [14][15][16]. However, these studies focused on the effects of of 12 functional diversity of root traits of non-herbaceous communities, on soil stabilization and resistance in mountainous or semi-arid vegetation, which are community structures selected under the erosion processes, specific to these soil and climatic contexts [14,17,18].…”

Section: Introductionmentioning

confidence: 99%

“…Nonetheless, these results emphasized the effects of negatively correlated trait combinations (i.e., leaf density and area) involved in hydraulic roughness increase, which suggested that communities with a high functional diversity would reach the best trade-off to maximize the vegetation effects on hydraulic roughness. A primary analysis was undertaken on the effects of aboveground functional trait divergence in herbaceous vegetation on the hydraulic roughness and sediment retention for processes occurring in loamy agricultural soils, emphasizing a dominant effect of the community-weighted traits in vegetation [16]. However, these results highlighted the need to deepen the understanding of the effects of functional diversity on runoff and linear soil erosion processes, by integrating a functional diversity gradient within the tested conditions.…”

Section: Introductionmentioning

confidence: 99%

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Functional Diversity Effects of Vegetation on Runoff to Design Herbaceous Hedges for Sediment Retention

Kervroëdan¹,

Armand²,

Saunier³

et al. 2020

Diversity

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Background: Functional diversity effects on ecosystem processes, like on soil erosion, are not fully understood. Runoff and soil erosion in agricultural landscapes are reduced by the hydraulic roughness (HR) of vegetation patches, which furthers sediment retention. Vegetation with important stem density, diameters, leaf areas, and density impact the HR. A functional structure composed of these negatively correlated traits involved in the increase of the HR would constitute a positive effect of the functional diversity. Methods: Runoff simulations were undertaken on four mono-specific and two multi-specific communities, using herbaceous plant species from North-West Europe, presenting six contrasting aboveground functional traits involved in the HR increase. Results: An effect of dominant traits in the community was found on the HR, identified as the community-weighted leaf density. The non-additive effect of functional diversity on the HR could be explained by the presence of species presenting large stems in the communities with high functional diversity. Conclusion: We argued that functional diversity effect on the HR could change due to idiosyncratic effects of the plant traits, which would be influenced by soil properties, phylogeny diversity, and plant species interactions. These findings constitute an advancement in the understanding of plant trait assemblage on runoff and soil erosion processes.

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Section: Non-additive Effect Of the Functional Diversity On Hydraulicsupporting

confidence: 91%

Section: Non-additive Effect Of the Functional Diversity On Hydraulicmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Functional Diversity Effects of Vegetation on Runoff to Design Herbaceous Hedges for Sediment Retention

Kervroëdan¹,

Armand²,

Saunier³

et al. 2020

Diversity

Self Cite

View full text Add to dashboard Cite

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“…The options for wood plants include teak [47,48], mahogany, and Indonesian rosewood, while the fruit crops include mangosteen, dog fruit, stink bean, jackfruit, lanzones/duku, and durian [49]. Besides, the intercrops that can be cultivated are coffee as a medium height plant [50][51][52] and herbs as root crops [53].…”

Section: Discussionmentioning

confidence: 99%

Trees and Crops Arrangement in the Agroforestry System Based on Slope Units to Control Landslide Reactivation on Volcanic Foot Slopes in Java, Indonesia

Purwaningsih

Sartohadi

Setiawan

2020

Land

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Agroforestry, as the dominant land use at the volcanic foot slope in Java Island, is prone to landslide due to a combination of rough relief and thick soil layer. However, evaluations of specific vegetation patterns against landslide reactivation due to soil erosion, which relays on the existing slope units and geomorphological processes, are still limited. The research data were collected through aerial photo interpretation by delineating morphological units of old landslides, slope units, and the existing land use. This was followed by field surveys for two consecutive purposes, i.e., (1) verification of aerial photo interpretation and (2) identification and intensity assessment of existing geomorphological processes. The data were tabulated according to slope units, as a basis for tree and crop arrangement in controlling erosion and landslide, by considering economic, social, and ecological functions. The agroforestry would control the landslides reactivation if the tree and crop arrangement was based on the morphological units formed by the previous landslide. The slope units are classified into residual zones at the highest elevations with flat slopes, erosion zones with the steepest slope, and sedimentation zones at the lowest elevations with gentle slopes. Trees and crops at those three units of the former landslide have different functions in controlling processes of rill erosion, gully erosion, and soil creep.

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Comprehensive evaluation of throughfall erosion in the banana plantation

Omar

Zhang

et al. 2022

Earth Surf Processes Landf

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Banana is an important cash crop in tropical and subtropical areas; however, the development of banana farming has caused thorny ecological problems, such as water and soil loss. There are few studies on the runoff response to rainfall in banana land to date. In this study, several evaluation indexes, rainfall redistribution, throughfall erosivity, splash kinetic energy, soil splash loss and runoff, respectively, were used to clarify the mechanism of soil erosion in banana land. Results showed that the atmospheric rainfall was significantly redistributed by the banana canopy, with about 81.2% throughfall, 8.3% stemflow and the rest canopy interception.Although the throughfall erosivity evaluated by the model was slightly lower than that of open rainfall, the throughfall kinetic energy and the soil particle splash loss reached 1.5 times and 5 times higher than that of open rainfall, respectively.Consequently, throughfall has an obvious splash erosion effect on the surface soil. In addition, influenced by throughfall and stemflow, surface runoff during the rainy season (May-September) accounts for the annual 91.7%, July and August in particular having the highest incidence of soil erosion in banana land. The above results suggest that the convergence effect of the banana canopy on rainwater is the main inducement for the increase in throughfall volume and surface runoff volume. Therefore, it is necessary to implement soil and water conservation measures on banana fields during the rainy season, such as planting low vegetation under the banana canopy to mitigate splash effects.

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Effects of plant traits and their divergence on runoff and sediment retention in herbaceous vegetation

Cited by 24 publications

References 50 publications

Functional Diversity Effects of Vegetation on Runoff to Design Herbaceous Hedges for Sediment Retention

Functional Diversity Effects of Vegetation on Runoff to Design Herbaceous Hedges for Sediment Retention

Trees and Crops Arrangement in the Agroforestry System Based on Slope Units to Control Landslide Reactivation on Volcanic Foot Slopes in Java, Indonesia

Comprehensive evaluation of throughfall erosion in the banana plantation

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