Testing the effects of straw mulching and herb seeding on soil erosion after fire in a gorse shrubland

Vega, José A.; Fernández, Cristina; Fontúrbel, Teresa; González-Prieto, S.J.; Jiménez, Enrique

doi:10.1016/j.geoderma.2014.01.014

Cited by 66 publications

(45 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

Section: Sediment Lossesmentioning

confidence: 90%

“…The mulch reduced the overland flow and sediment losses by 52% and 93%, respectively, relative to the un-mulched treatment [55]. Moreover, the sediment loss could be reduced by up to 89% due to the mulch effect [56]. Mulch significantly (α = 0.05) reduced (81% to 100%) the sediment losses relative to the un-mulched control (Figure 4b), because unprotected purple soil is more vulnerable to erosion compared to other soil types.…”

Section: Sediment Lossesmentioning

confidence: 94%

See 1 more Smart Citation

Effect of Slope, Rainfall Intensity and Mulch on Erosion and Infiltration under Simulated Rain on Purple Soil of South-Western Sichuan Province, China

Khan

Gong

Ting-xing

et al. 2016

Water

View full text Add to dashboard Cite

Purple soil is widely distributed in the hilly areas of the Sichuan basin, southwest China, and is highly susceptible to water erosion. The triggering of this process is related to slope, rainfall intensity and surface cover. Therefore, this study assesses the effects of different simulated rainfall intensities with different slopes on hydrological and erosional processes in un-mulched and mulched purple soils. Results show that the sediment and water losses increased with an increase of rainfall intensity and slope steepness. Generally, the slope contribution (Sc) on water and sediment losses decreased with increasing rainfall intensity and slope steepness under both un-mulched and mulched soil. In un-mulched conditions, water losses were independent of slope steepness (Sc < 50%) during the highest rainfall intensity. However, in mulched soil, the higher contributions of slope (Sc) and rainfall (Rc) were found for water and sediment losses, respectively, i.e., >50%, except during the increase in slope steepness from 15 • to 25 • under the highest rainfall intensity (120 mm·h −1 ). The effectiveness of mulch was more pronounced in reducing sediment losses (81%-100%) compared with water losses (14%-100%). The conservation effectiveness of mulch both decreased and increased with slope steepness for water and sediment losses, respectively, under higher rainfall intensities. Water infiltration and recharge coefficient (RC) decreased with an increase of slope steepness, while with an increase in rainfall intensity, the water infiltration and RC were increased and decreased, respectively, in both un-mulched and mulched soil. On the other hand, mulched soil maintained a significantly (α = 0.05) higher infiltration capacity and RC compared to that of the un-mulched soil.

show abstract

Section: Sediment Lossesmentioning

confidence: 90%

Section: Sediment Lossesmentioning

confidence: 94%

Effect of Slope, Rainfall Intensity and Mulch on Erosion and Infiltration under Simulated Rain on Purple Soil of South-Western Sichuan Province, China

Khan

Gong

Ting-xing

et al. 2016

Water

View full text Add to dashboard Cite

show abstract

“…One of the most useful BAER techniques is mulching, usually with straw, that greatly reduces soil losses (Bautista et al 2009;Díaz-Raviña et al 2012;Fernandez et al 2011;Groen and Woods 2008;Vega et al 2014), but the available information on their effects on burned soil quality and fertility is still scarce Fontúrbel et al 2012;. Although it is wellknown that mulching modifies the environmental conditions and the organic matter dynamics in soils, including gross N transformations (Cheng et al 2012;Huang et al 2008), there are no studies dealing with the effects of post-fire mulching treatments on N dynamics.…”

mentioning

confidence: 99%

Soil gross N transformation rates after a wildfire and straw mulch application for burned soil emergency stabilisation

Gómez-Rey

González-Prieto

2015

Biol Fertil Soils

View full text Add to dashboard Cite

Effects of fire and post-fire mulching for soil protection on N transformations were evaluated in the laboratory 4, 8 and 12 months after a wildfire in the 0-2-cm layer of a burned soil without (BS) or with straw mulch (BSM) and an unburned soil (US). The relationships between the gross N rates calculated with the FLUAZ model (Mary et al. 1998) and 19 soil characteristics were also explored. The gross N mineralisation (m) and NH 4 + immobilisation rates (ia) were similar and significantly correlated (p<0.001) and decreased during the incubation. Both m and ia were higher in burned than in unburned soils and, despite a reduction with time, differences were still 3-fold at t=12 months. Treatment explained half the variation of gross nitrification (kn), which was always low in US and nil in burned soils. Nitrate immobilisation (in) was the only gross rate that was (a) higher in unburned than in burned soils, (b) higher after 12 months than in previous samplings and (c) negatively affected by mulching. Both m and ia were positively correlated with soil pH, initial inorganic-N pools and extractable-Mn (p<0.05 to p<0.001) and negatively correlated with soil water-holding capacity and contents of total C, total N, extractable Cu and extractable Zn (p<0.05 to p<0.001). Both kn and in were negatively correlated with soil characteristics. Despite the strong correlations of pH and total C and N with the gross N transformations, the former variables were never included in the best multiple linear models for the latter. Besides the initial NH 4 + -N or NO 3 − -N contents, all but one best multiple regressions for m and ia included one or two available nutrients, in particular Cu, K, P and Mn. Multiple regressions of kn were only found for US and they included two nutrients (Ca and K, or K, Zn and electrical conductivity). Considering all samples and incubation intervals together, two thirds of in variance was explained by a model with the initial NO 3 − -N, the available Cu and P content. Mulching of burned soil gave a shortlived stimulation of m and ia and a sustained reduction of in.

show abstract

“…However, alternative studies showed the importance of monitoring the short-term effects immediately after the fire event. Vega (et al, 2014) proved that concentrated precipitation accumulated in one or two consecutive days and antecedent soil moisture were the variables most strongly associated with soil losses and related sediment yield in the untreated burned and seeded soils. The spatial analysis of fire patterns allows us to identify the factors driving trends and interactions in the spatial/temporal distribution and determine the observation scales of possible spatial relationships.…”

Section: Introductionmentioning

confidence: 97%

Remote Sensing Techniques to Assess Post-Fire Effects at the Hillslope and Sub-Basin Scales via Multi-Scale Model

Brook

Polinova

Kopel

et al. 2017

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

View full text Add to dashboard Cite

ABSTRACT:Post-fire environmental footprint is expected at varying scales in space and in time and demands development of multi-scale monitoring approaches. In this paper, a spatially and temporally explicit multi-scale model that reveals the physical and morphological indicators affecting hillslope susceptibility at varying scales, is explained and demonstrated. The qualitative and quantitative suitability classification procedures are adapted to translate the large-scale space-borne data supplied by satellite systems (Landsat OLS8 and Sentinel 2 and 3) to local scale produced by a regional airborne survey performed by unmanned aerial vehicle (UAV). At the smallest spatial and temporal resolution, a daily airborne imagery collection by UAV is linked to micro-topography model, using statistical and mathematical approaches.

show abstract

Testing the effects of straw mulching and herb seeding on soil erosion after fire in a gorse shrubland

Cited by 66 publications

References 41 publications

Effect of Slope, Rainfall Intensity and Mulch on Erosion and Infiltration under Simulated Rain on Purple Soil of South-Western Sichuan Province, China

Effect of Slope, Rainfall Intensity and Mulch on Erosion and Infiltration under Simulated Rain on Purple Soil of South-Western Sichuan Province, China

Soil gross N transformation rates after a wildfire and straw mulch application for burned soil emergency stabilisation

Remote Sensing Techniques to Assess Post-Fire Effects at the Hillslope and Sub-Basin Scales via Multi-Scale Model

Contact Info

Product

Resources

About