Wildfire and salvage harvesting effects on runoff generation and sediment exports from radiata pine and eucalypt forest catchments, south-eastern Australia

Smith, Hugh G.; Sheridan, Gary; Lane, Patrick; Bren, Leon

doi:10.1016/j.foreco.2010.11.009

Cited by 49 publications

(47 citation statements)

References 43 publications

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“…Research on post-fire management actions reveals that logging and salvage harvesting Fernández et al, 2007;Smith et al, 2011) have a negative effect on erosion potential; while mulching (Prats et al, 2012;Robichaud et al, 2013) creates surface protection thereby reducing the soil erosion potential. However, actual erosion that will occur is a product of different processes.…”

Section: Post-wildfire Impacts On Hydrological Processesmentioning

confidence: 99%

“…In numerous countries, there have been many management strategies tested in relation to management effectiveness. In Pine and Eucalypt forests in Greece and Australia, where salvage logging occurred, it was shown to be ineffective in enhancing re-vegetation rates, especially for herbaceous vegetation (Spanos et al, 2010), and furthermore, the log drag lines served as an extension of the drainage network enhancing runoff and sediment yield by orders of magnitude (Smith et al, 2011). This also had a negative effect on water and sediment delivery from the catchment (Spanos et al, 2005).…”

Section: Insights For Post-fire Management Decisionsmentioning

confidence: 99%

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Effects of controlled fire on hydrology and erosion under simulated rainfall

Keesstra

Maroulis

Argaman

et al. 2014

CIG

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ABSTRACT. Mediterranean forests are frequently subject to wildfires, inducing risks of high runoff and loss of nutrient-rich topsoil. The mechanisms influencing investigamos los efectos post-incendio de un fuego de laboratorio y dos experimentos sucesivos de lluvia simulada para evaluar las consecuencias a corto plazo de un incendio sobre los parámetros hidrológicos y la erodibilidad del suelo, examinando (i) los niveles de repelencia al agua y su distribución, (ii) los rasgos de la cubierta superficial, y (iii) las respuestas de la infiltración, la escorrentía y la erosión frente a la lluvia simulada en una situación no perturbada (con suelo desnudo y cubierto de acículas) y quemada (con y sin cenizas). La repelencia al fuego

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Section: Post-wildfire Impacts On Hydrological Processesmentioning

confidence: 99%

Section: Insights For Post-fire Management Decisionsmentioning

confidence: 99%

Effects of controlled fire on hydrology and erosion under simulated rainfall

Keesstra

Maroulis

Argaman

et al. 2014

CIG

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“…This produced a radial pattern of log drag-lines (furrows) which converged towards the base of subcatchments. Post-harvest, a series of intense summer storm events generated highly elevated peak flows and sediment exports from the burnt and salvage harvested catchment (Clem) compared to the burnt native forest catchments, Ella and Betsy (Smith et al, 2011b). The storms resulted in extensive erosion along the main channel in Clem as well as gully development in one of the subcatchments (Fig.…”

Section: Study Area and Project Backgroundmentioning

confidence: 99%

“…Comparatively few studies specifically examine the effect of wildfire followed by salvage harvesting on sediment and nutrient transfer. Reported impacts on catchment sediment exports ranged from minor change to large increases relative to burnt and unharvested sites (Silins et al, 2009;Smith et al, 2011b).…”

Section: Introductionmentioning

confidence: 99%

“…It is situated in the Cropper Creek research catchments, which are located in south-eastern Australia. Previously, Smith et al (2011b) reported the effect of wildfire and salvage harvesting on runoff generation and sediment exports from the Cropper Creek catchments. The aim of the present study was to determine the combined effect of wildfire and salvage harvesting on nutrient losses from a radiata pine catchment compared to the effect of wildfire only in a native eucalypt forest catchment.…”

Section: Introductionmentioning

confidence: 99%

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Impacts of wildfire and salvage harvesting on water quality and nutrient exports from radiata pine and eucalypt forest catchments in south-eastern Australia

Smith

Hopmans

Sheridan

et al. 2012

Forest Ecology and Management

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Debris‐flow‐dominated sediment transport through a channel network after wildfire

Nyman

Box

Stout

et al. 2020

Earth Surf Processes Landf

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Field studies that investigate sediment transport between debris‐flow‐producing headwaters and rivers are uncommon, particularly in forested settings, where debris flows are infrequent and opportunities for collecting data are limited. This study quantifies the volume and composition of sediment deposited in the arterial channel network of a 14‐km2 catchment (Washington Creek) that connects small, burned and debris‐flow‐producing headwaters (<1 km2) with the Ovens River in SE Australia. We construct a sediment budget by combining new data on deposition with a sediment delivery model for post‐fire debris flows. Data on deposits were plotted alongside the slope–area curve to examine links between processes, catchment morphometry and geomorphic process domains. The results show that large deposits are concentrated in the proximity of three major channel junctions, which correspond to breaks in channel slope. Hyperconcentrated flows are more prominent towards the catchment outlet, where the slope–area curve indicates a transition from debris flow to fluvial domains. This shift corresponds to a change in efficiency of the flow, determined from the ratio of median grain size to channel slope. Our sediment budget suggests a total sediment efflux from Washington Creek catchment of 61 × 103 m3. There are similar contributions from hillslopes (43 ± 14 × 103 m3), first to third stream order channel (35 ± 12 × 103 m3) and the arterial fourth to fifth stream order channel (31 ± 17 × 103 m3) to the total volume of erosion. Deposition (39 ± 17 × 103 m3) within the arterial channel was higher than erosion (31 ± 17 × 103 m3), which means a net sediment gain of about 8 × 103 m3 in the arterial channel. The ratio of total deposition to total erosion was 0.44. For fines <63 μm, this ratio was much smaller (0.11), which means that fines are preferentially exported. This has important implications for suspended sediment and water quality in downstream rivers. © 2019 John Wiley & Sons, Ltd.

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Wildfire and salvage harvesting effects on runoff generation and sediment exports from radiata pine and eucalypt forest catchments, south-eastern Australia

Cited by 49 publications

References 43 publications

Effects of controlled fire on hydrology and erosion under simulated rainfall

Effects of controlled fire on hydrology and erosion under simulated rainfall

Impacts of wildfire and salvage harvesting on water quality and nutrient exports from radiata pine and eucalypt forest catchments in south-eastern Australia

Debris‐flow‐dominated sediment transport through a channel network after wildfire

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