The effects of narrow grass hedges on soil and water loss on sloping lands with alfalfa (Medicago sativa L.) in Northern China

Xiao, Bo; Wang, Qinghai; Wang, Hui‐Fang; Dai, Quanhou; Wu, Juying

doi:10.1016/j.geoderma.2011.09.010

Cited by 27 publications

(3 citation statements)

References 36 publications

(38 reference statements)

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“…defining the tillers and pseudoculms as stems when characterising the stem density). The stem density is one of the main traits included in hydraulic and soil erosion models such as VFSMOD (Muñoz Carpena and Parsons, 2014) and in studies focusing on the relationship between vegetation and hydraulic roughness or sediment retention (Morgan, 2004;Temple, 1982;Van Dijk et al, 1996;Xiao et al, 2011), which could be improved by considering the effect of other stem traits (e.g., stem diameter). In the trait-based approach, the importance of stem density in the plant-hydraulic roughness relationship lays in its use in the calculation of weighted stem trait values in the vegetation.…”

Section: Effect Of Morphological Traits and Density-weighted Traits Omentioning

confidence: 99%

Plant functional trait effects on runoff to design herbaceous hedges for soil erosion control

Kervroëdan

Armand

Saunier³

et al. 2018

Ecological Engineering

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Vegetation controls concentrated runoff and erosion in the European loess belt by increasing hydraulic roughness and sediment retention. Studies of plant effects on runoff velocity are usually based on a taxonomical characterisation and do not consider the effects of aboveground plant functional traits in attempts to understand soil erosion by water. This trait-based plant study investigates aboveground plant functional trait effects of herbaceous hedges on the hydraulic roughness to understand soil erosion. Eight aboveground functional traits were measured on fourteen indigenous and perennial plant species (caespitose or comprising dry biomass in winter) from northwest Europe with a high morphological variability. For each trait, density-weighted traits were calculated. ACCEPTED VERSION 2 The effects of functional traits and density-weighted traits were examined using a runoff simulator with four discharges. The leaf density and area, as well as density-weighted stem and leaf areas, stem diameter and specific leaf area were positively correlated with the hydraulic roughness. Generalised linear models defined the best combinations of traits and density-weighted traits: (1) leaf density and leaf area, (2) density-weighted leaf area and density-weighted projected stem area, and (3) density-weighted leaf area and densityweighted stem diameter. Moreover, the effects of leaf density, leaf area and densityweighted specific leaf area, varied depending on the discharge. This study is one of the first characterisation of aboveground trait effects on hydraulic roughness and highlights that vegetation with important stem density, diameter and leaf area plays a significant role in minimising soil erosion. The selection of plant species can derive from these plant trait effects to design reconstructed herbaceous hedges to minimise soil erosion.

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Section: Effect Of Morphological Traits and Density-weighted Traits Omentioning

confidence: 99%

Plant functional trait effects on runoff to design herbaceous hedges for soil erosion control

Kervroëdan

Armand

Saunier³

et al. 2018

Ecological Engineering

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“…The objectives of this study were to (1) provide a better understanding of sediment deposition and flow hydraulics as the runoff passes through simulated VFS under a great range of sediment concentrations, (2) analyse the quantitative relationship between sediment deposition and overland flow hydraulics within VFS and (3) explore the impact of flow regimes on sediment deposition. To ensure the reproducibility of results and accuracy of measurements and previous studies also demonstrated that VFS trapped sediment mainly through vegetation stems (Pan et al ., ; Xiao et al ., ), model resistive elements consisting of beds of cylinders of various diameters were used to simulate the hydraulic resistance offered by VFS prior to using real vegetation to test the findings.…”

Section: Introductionmentioning

confidence: 99%

Sediment deposition and overland flow hydraulics in simulated vegetative filter strips under varying vegetation covers

et al. 2015

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Vegetative filter strips (VFSs) can effectively trap sediment in overland flow, but little information is available on its performance in controlling high‐concentration sediment and the runoff hydraulics in VFS. Flume experiments were conducted to investigate the sediment deposition, hydraulics of overland flow and their relationships in simulating VFS under a great range of sediment concentrations with four levels of vegetation cover (bare slope and 4%, 11% and 17%) and two flow rates (15 and 30 L min−1). Sediment concentrations varied from 30 to 400 kg m−3 and slope gradient was 9°. Both the deposited sediment load and deposition efficiency in VFS increased as the vegetation cover increased. Sediment concentration had a positive effect on the deposited load but no effect on deposition efficiency. A lower flow rate corresponded to greater deposition efficiency but had little effect on deposited load. Flow velocities decreased as vegetation cover increased. Sediment concentration had a negative effect on the mean velocity but no effect on surface velocity. Hydraulic resistance increased as the vegetation cover and sediment concentration increased. Sediment deposition efficiency had a much more pronounced relationship with overland flow hydraulics compared with deposited load, especially with the mean flow velocity, and there was a power relationship between them. Flow regime also affected the sediment deposition efficiency, and the efficiency was much higher under subcritical than supercritical flow. The results will be useful for the design of VFS and the control of sediment flowing into rivers in areas with serious soil erosion. Copyright © 2015 John Wiley & Sons, Ltd.

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“…The aesthetic value is defined by its beauty and the value the garden adds to the scenery. In addition, the usability is the durability of a given field to sports or reduction in the erosion effects (McElroy and Martins, 2013), due its unique characteristics such as fast growth, deep and penetrating root system, and high tolerance to adverse conditions (Xiao et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Selectivity and efficiency of herbicides in warm season turfgrass varieties

Silva¹,

Cesarin²,

Martins³

et al. 2016

Afr. J. Agric. Res.

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Weed infestations and the few post-emergent control alternatives available are some of the main problems in the management of ornamental and sports lawns. Given the exposed, the study aims to evaluate the selectivity of five herbicides to four grass varieties: Paspalum notatum (bahia grass), Cynodon dactylon (bahama grass-ITG6), Zoysia japonica (japanese lawn grass) and Zoysia japonica (imperial -ITG5), as well as the control efficiency of those upon nutsedge (Cyperus rotundus) and sudan grass (Urochloa decumbens). The following herbicides were applied in the recommended doses: sulfentrazone + diuron, isoxaflutole, triclopyr, 2,4-D and halosulfuron. Visual phytotoxicity symptoms in turfgrass and weed control were performed at 7, 14, 21, 28, 35 and 42 days after herbicide application and, at the end of the evaluations, was quantified the dry weight. The herbicides sulfentrazone + diuron and isoxaflutole were not selective to any turfgrass, although sulfentrazone + diuron controlled C. rotundus and U. decumbens species and isoxaflutole controlled only U. decumbens. However, halosulfuron and 2,4-D herbicides were selective to all of grasses and promoted weed species control. The herbicide triclopyr was selective to P. notatum, Z. japonica and Z. japonica-ITG5, and it can be used to control C. rotundus and U. decumbens.

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The effects of narrow grass hedges on soil and water loss on sloping lands with alfalfa (Medicago sativa L.) in Northern China

Cited by 27 publications

References 36 publications

Plant functional trait effects on runoff to design herbaceous hedges for soil erosion control

Plant functional trait effects on runoff to design herbaceous hedges for soil erosion control

Sediment deposition and overland flow hydraulics in simulated vegetative filter strips under varying vegetation covers

Selectivity and efficiency of herbicides in warm season turfgrass varieties

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