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  • 1
    Online Resource
    Online Resource
    Heating effects on water repellency in Australian eucalypt forest soils and their value in estimating wildfire soil temperatures
    CSIRO Publishing ; 2004
    In:  International Journal of Wildland Fire Vol. 13, No. 2 ( 2004), p. 157-
    Details
    In: International Journal of Wildland Fire, CSIRO Publishing, Vol. 13, No. 2 ( 2004), p. 157-
    Abstract: Wildfires can induce or enhance soil water repellency under a range of vegetation communities. According to mainly USA-based laboratory studies, repellency is eliminated at a maximum soil temperature (T) of 280–400°C. Knowledge of T reached during a wildfire is important in evaluating post-fire soil physical properties, fertility and seedbed status. T is, however, notoriously difficult to ascertain retrospectively and often based on indicative observations with a large potential error. Soils under fire-prone Australian eucalypt forests tend to be water repellent when dry or moderately moist even if long unburnt. This study aims to quantify the temperature of water repellency destruction for Australian topsoil material sampled under three sites with contrasting eucalypt cover (Eucalyptus sieberi, E. ovata and E. baxteri). Soil water repellency was present prior to heating in all samples, increased during heating, but was abruptly eliminated at a specific T between 260 and 340°C. Elimination temperature varied somewhat between samples, but was found to be dependent on heating duration, with longest duration resulting in lowest elimination temperature. Results suggest that post-fire water repellency may be used as an aid in hindcasting soil temperature reached during the passage of a fire within repellency-prone environments.
    Type of Medium: Online Resource
    ISSN: 1049-8001
    URL: Article
    DOI: 10.1071/WF03051
    Language: English
    Publisher: CSIRO Publishing
    Publication Date: 2004
    SSG: 12
    SSG: 23
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  • 2
    Online Resource
    Online Resource
    Structural characteristics and behavior of fire-modified soil aggregates
    American Geophysical Union (AGU) ; 2007
    In:  Journal of Geophysical Research Vol. 112, No. F2 ( 2007-05-23)
    Details
    In: Journal of Geophysical Research, American Geophysical Union (AGU), Vol. 112, No. F2 ( 2007-05-23)
    Type of Medium: Online Resource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/2006JF000660
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 2007
    detail.hit.zdb_id: 2033040-6
    detail.hit.zdb_id: 3094104-0
    detail.hit.zdb_id: 2130824-X
    detail.hit.zdb_id: 2016813-5
    detail.hit.zdb_id: 2016810-X
    detail.hit.zdb_id: 2403298-0
    detail.hit.zdb_id: 2016800-7
    detail.hit.zdb_id: 161666-3
    detail.hit.zdb_id: 161667-5
    detail.hit.zdb_id: 2969341-X
    detail.hit.zdb_id: 161665-1
    detail.hit.zdb_id: 3094268-8
    detail.hit.zdb_id: 710256-2
    detail.hit.zdb_id: 2016804-4
    detail.hit.zdb_id: 3094181-7
    detail.hit.zdb_id: 3094219-6
    detail.hit.zdb_id: 3094167-2
    detail.hit.zdb_id: 2220777-6
    detail.hit.zdb_id: 3094197-0
    SSG: 16,13
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    Online Resource
  • 3
    Online Resource
    Online Resource
    The temporal evolution of wildfire ash and implications for post-fire infiltration
    CSIRO Publishing ; 2014
    In:  International Journal of Wildland Fire Vol. 23, No. 5 ( 2014), p. 733-
    Details
    In: International Journal of Wildland Fire, CSIRO Publishing, Vol. 23, No. 5 ( 2014), p. 733-
    Abstract: Changes in the properties of an ash layer with time may affect the amount of post-fire runoff, particularly by the formation of ash surface crusts. The formation of depositional crusts by ash have been observed at the pore and plot scales, but the causes and temporal evolution of ash layers and associated crusts have not yet been thoroughly investigated. In the long term, ash crusting effects will decrease as the ash layer is removed by wind and water erosion, but in the short term ash crusting could contribute to the observed changes in post-fire runoff. This research addresses these topics by studying the evolution over time of highly combusted ash layers from two high-severity wildfires that occurred in Montana in 2011. More specifically, this research was designed to assess the potential for ash crusts to form and thereby contribute to the observed decreases in infiltration after forest fires. Results indicate that high-combustion ash can evolve due to post-fire rainfall. Plots that exhibited a visible ash crust also displayed a significant decrease in effective porosity and hydraulic conductivity. These decreases in ash layer characteristics were attributed to raindrop compaction and ash hydration resulting in the formation of carbonate crystals, which decreased effective porosity and flow within the ash layer. During this same time period, inorganic carbon content more than doubled from 11 to 26% and bulk density significantly increased from 0.22 to 0.39gcm–3 on crusted plots. Although raindrop impact increased the robustness of the ash crust, mineralogical transformations must occur to produce a hydrologically relevant ash crust. These results indicate that post-fire rainfall is an important control on the properties of the ash layer after burning and on crust formation. The observed temporal changes indicate that the timing of ash sampling can alter the predictions as to whether the ash layer is effecting post-fire infiltration and runoff. Despite the reduction in infiltration capacity, the formation of post-fire ash crusts could prove beneficial to post-fire hazard mitigation by stabilising the ash layer, and reducing aeolian mixing and erosion.
    Type of Medium: Online Resource
    ISSN: 1049-8001
    URL: Article
    DOI: 10.1071/WF13159
    Language: English
    Publisher: CSIRO Publishing
    Publication Date: 2014
    SSG: 12
    SSG: 23
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  • 4
    Online Resource
    Online Resource
    The influence of wildfire on water quality and watershed processes: new insights and remaining challenges
    CSIRO Publishing ; 2019
    In:  International Journal of Wildland Fire Vol. 28, No. 10 ( 2019), p. 721-
    Details
    In: International Journal of Wildland Fire, CSIRO Publishing, Vol. 28, No. 10 ( 2019), p. 721-
    Abstract: This short paper provides the framework and introduction to this special issue of International Journal of Wildland Fire. Its eight papers were selected from those presented at two consecutive conferences held in 2018 in Europe and the USA that focussed on the impacts of wildfire on factors that regulate streamflow, water quality, sediment transport, and aquatic habitats. Despite decades of watershed research, our understanding of the effects of wildfires on the processes that regulate clean water supply remains limited. Here, we summarise the key challenges and research needs in this interdisciplinary field and evaluate the contributions the eight special issue papers make to improved understanding of wildfire impacts on watershed processes. We also outline research priorities aimed at improving our ability to predict and, where necessary, mitigate wildfire impacts on watersheds. Achieving these advances is all the more pressing given the increasing extent and severity of wildfires in many areas that are the source of clean water for major population centres.
    Type of Medium: Online Resource
    ISSN: 1049-8001
    URL: Article
    DOI: 10.1071/WFv28n10_FO
    Language: English
    Publisher: CSIRO Publishing
    Publication Date: 2019
    SSG: 12
    SSG: 23
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    Online Resource
  • 5
    Online Resource
    Online Resource
    Global and Regional Trends and Drivers of Fire Under Climate Change
    American Geophysical Union (AGU) ; 2022
    In:  Reviews of Geophysics Vol. 60, No. 3 ( 2022-09)
    Details
    In: Reviews of Geophysics, American Geophysical Union (AGU), Vol. 60, No. 3 ( 2022-09)
    Abstract: The frequency and severity of fire weather has increased in recent decades and is projected to escalate with each added increment of warming Fire weather is one of the major controls on fire activity, and is the dominant control on variability in burned area (BA) in many mesic forest ecoregions Various human and bioclimatic factors also control fire, modulating the relationship between BA and fire weather in many regions
    Type of Medium: Online Resource
    ISSN: 8755-1209 , 1944-9208
    URL: Article
    DOI: 10.1029/2020RG000726
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 2022
    detail.hit.zdb_id: 2035391-1
    detail.hit.zdb_id: 209852-0
    detail.hit.zdb_id: 209853-2
    SSG: 16,13
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  • 6
    Online Resource
    Online Resource
    The role of fire in UK peatland and moorland management: the need for informed, unbiased debate
    The Royal Society ; 2016
    In:  Philosophical Transactions of the Royal Society B: Biological Sciences Vol. 371, No. 1696 ( 2016-06-05), p. 20150342-
    Details
    In: Philosophical Transactions of the Royal Society B: Biological Sciences, The Royal Society, Vol. 371, No. 1696 ( 2016-06-05), p. 20150342-
    Abstract: Fire has been used for centuries to generate and manage some of the UK's cultural landscapes. Despite its complex role in the ecology of UK peatlands and moorlands, there has been a trend of simplifying the narrative around burning to present it as an only ecologically damaging practice. That fire modifies peatland characteristics at a range of scales is clearly understood. Whether these changes are perceived as positive or negative depends upon how trade-offs are made between ecosystem services and the spatial and temporal scales of concern. Here we explore the complex interactions and trade-offs in peatland fire management, evaluating the benefits and costs of managed fire as they are currently understood. We highlight the need for (i) distinguishing between the impacts of fires occurring with differing severity and frequency, and (ii) improved characterization of ecosystem health that incorporates the response and recovery of peatlands to fire. We also explore how recent research has been contextualized within both scientific publications and the wider media and how this can influence non-specialist perceptions. We emphasize the need for an informed, unbiased debate on fire as an ecological management tool that is separated from other aspects of moorland management and from political and economic opinions. This article is part of the themed issue ‘The interaction of fire and mankind’.
    Type of Medium: Online Resource
    ISSN: 0962-8436 , 1471-2970
    URL: Article
    DOI: 10.1098/rstb.2015.0342
    RVK:
    WA 15000
    Language: English
    Publisher: The Royal Society
    Publication Date: 2016
    detail.hit.zdb_id: 1462620-2
    SSG: 12
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    Online Resource
  • 7
    Online Resource
    Online Resource
    Fire effects on soils: the human dimension
    The Royal Society ; 2016
    In:  Philosophical Transactions of the Royal Society B: Biological Sciences Vol. 371, No. 1696 ( 2016-06-05), p. 20150171-
    Details
    In: Philosophical Transactions of the Royal Society B: Biological Sciences, The Royal Society, Vol. 371, No. 1696 ( 2016-06-05), p. 20150171-
    Abstract: Soils are among the most valuable non-renewable resources on the Earth. They support natural vegetation and human agro-ecosystems, represent the largest terrestrial organic carbon stock, and act as stores and filters for water. Mankind has impacted on soils from its early days in many different ways, with burning being the first human perturbation at landscape scales. Fire has long been used as a tool to fertilize soils and control plant growth, but it can also substantially change vegetation, enhance soil erosion and even cause desertification of previously productive areas. Indeed fire is now regarded by some as the seventh soil-forming factor. Here we explore the effects of fire on soils as influenced by human interference. Human-induced fires have shaped our landscape for thousands of years and they are currently the most common fires in many parts of the world. We first give an overview of fire effect on soils and then focus specifically on (i) how traditional land-use practices involving fire, such as slash-and-burn or vegetation clearing, have affected and still are affecting soils; (ii) the effects of more modern uses of fire, such as fuel reduction or ecological burns, on soils; and (iii) the ongoing and potential future effects on soils of the complex interactions between human-induced land cover changes, climate warming and fire dynamics. This article is part of the themed issue ‘The interaction of fire and mankind’.
    Type of Medium: Online Resource
    ISSN: 0962-8436 , 1471-2970
    URL: Article
    DOI: 10.1098/rstb.2015.0171
    RVK:
    WA 15000
    Language: English
    Publisher: The Royal Society
    Publication Date: 2016
    detail.hit.zdb_id: 1462620-2
    SSG: 12
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  • 8
    Online Resource
    Online Resource
    Prescribed fire and its impacts on ecosystem services in the UK
    Elsevier BV ; 2018
    In:  Science of The Total Environment Vol. 624 ( 2018-05), p. 691-703
    Details
    In: Science of The Total Environment, Elsevier BV, Vol. 624 ( 2018-05), p. 691-703
    Type of Medium: Online Resource
    ISSN: 0048-9697
    URL: Article
    DOI: 10.1016/j.scitotenv.2017.12.161
    RVK:
    AR 10100
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2018
    detail.hit.zdb_id: 1498726-0
    detail.hit.zdb_id: 121506-1
    SSG: 12
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    Online Resource
  • 9
    Online Resource
    Online Resource
    The effect of ash and needle cover on surface runoff and erosion in the immediate post-fire period
    Elsevier BV ; 2008
    In:  CATENA Vol. 74, No. 3 ( 2008-8), p. 256-263
    Details
    In: CATENA, Elsevier BV, Vol. 74, No. 3 ( 2008-8), p. 256-263
    Type of Medium: Online Resource
    ISSN: 0341-8162
    URL: Article
    DOI: 10.1016/j.catena.2008.03.010
    RVK:
    RA 1595
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2008
    detail.hit.zdb_id: 1492500-X
    detail.hit.zdb_id: 519608-5
    SSG: 13
    SSG: 14
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  • 10
    Online Resource
    Online Resource
    Hot-water-soluble Carbon and Surface Properties of Water Repellent Soils
    Horizon Research Publishing Co., Ltd. ; 2015
    In:  Universal Journal of Agricultural Research Vol. 3, No. 5 ( 2015-09), p. 165-171
    Details
    In: Universal Journal of Agricultural Research, Horizon Research Publishing Co., Ltd., Vol. 3, No. 5 ( 2015-09), p. 165-171
    Type of Medium: Online Resource
    ISSN: 2332-2268 , 2332-2284
    URL: Article
    DOI: 10.13189/ujar.2015.030504
    Language: English
    Publisher: Horizon Research Publishing Co., Ltd.
    Publication Date: 2015
    detail.hit.zdb_id: 2791284-X
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