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Impacts of prescribed fire on soil loss and soil quality: An assessment based on an experimentally-burned catchment in central Portugal

Richard A Shakesby, Célia P.M Bento, Carla S.S Ferreira, António J.D Ferreira, Cathelijne R Stoof, Emilia Urbanek Orcid Logo, Rory Walsh, Rick Shakesby

CATENA, Volume: Forthcoming, Start page: n/a

Swansea University Authors: Emilia Urbanek Orcid Logo, Rory Walsh, Rick Shakesby

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DOI (Published version): 10.1016/j.catena.2013.03.012

Abstract

Hillslope-scale losses of soil, organic matter and selected nutrients pre- and post-prescribed fire in the shrub-vegetated Vale Torto catchment with thin stony soil in central Portugal. The soil erosion results are compared with measurements: (1) on a nearby hillslope burned by wildfire and monitore...

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Published in: CATENA
ISSN: 0341-8162
Published: 2013
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URI: https://cronfa.swan.ac.uk/Record/cronfa14507
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spelling 2013-11-05T15:25:35.7907196 v2 14507 2013-04-01 Impacts of prescribed fire on soil loss and soil quality: An assessment based on an experimentally-burned catchment in central Portugal 6d7e46bd913e12897d7f222ca78a718f 0000-0002-7748-4416 Emilia Urbanek Emilia Urbanek true false f3633408adc4dc477955b2eca4c4c9af Rory Walsh Rory Walsh true false e446d5dc2dad5add13364081e45c090c Rick Shakesby Rick Shakesby true false 2013-04-01 SGE Hillslope-scale losses of soil, organic matter and selected nutrients pre- and post-prescribed fire in the shrub-vegetated Vale Torto catchment with thin stony soil in central Portugal. The soil erosion results are compared with measurements: (1) on a nearby hillslope burned by wildfire and monitored at the hillslope scale; and (2) on long-unburned terrain at small-plot, hillslope- and catchment-scales. Hillslope-scale pre- and post-fire soil erosion was recorded over periods of 6 weeks to 5 months for (1) 9.5 months pre-fire and 27 months post-fire in the prescribed fire catchment, and (2) c. 3 years post-fire at the wildfire site. Organic matter content, pH and selected nutrients were measured in the eroded sediment and in pre- and post-prescribed fire surface soil. It is concluded that: (1) both types of fire (prescribed fire and wildfire) caused increased erosion compared with unburned terrain; and (2) the hillslope-scale post-prescribed fire soil losses were higher than many reported smaller-scale post-prescribed fire and post-wildfire erosion rates in the Mediterranean. By comparison, post-fire erosion for both fire types was less than that caused by some other types of common soil disturbance (e.g. types of tillage) and even that on undisturbed scrub in low rainfall areas of the Mediterranean. Total estimated post-prescribed fire particulate losses of organic matter and nutrients represent only 0.2-2.9% of the content in the upper 2 cm of soil, suggesting only a relatively small fire impact on soil quality, although few high-magnitude rainstorms following the fire may be a factor. The longer-term implications for soil conservation of repeated prescribed fire in the Mediterranean are explored and future research needs discussed. Journal Article CATENA Forthcoming n/a 0341-8162 Prescribed fire, wildfire, soil erosion, soil degradation, central Portugal 31 12 2013 2013-12-31 10.1016/j.catena.2013.03.012 in press (corrected proof published online 21 April 2013) COLLEGE NANME Geography COLLEGE CODE SGE Swansea University 2013-11-05T15:25:35.7907196 2013-04-01T20:09:08.7817525 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Geography Richard A Shakesby 1 Célia P.M Bento 2 Carla S.S Ferreira 3 António J.D Ferreira 4 Cathelijne R Stoof 5 Emilia Urbanek 0000-0002-7748-4416 6 Rory Walsh 7 Rick Shakesby 8
title Impacts of prescribed fire on soil loss and soil quality: An assessment based on an experimentally-burned catchment in central Portugal
spellingShingle Impacts of prescribed fire on soil loss and soil quality: An assessment based on an experimentally-burned catchment in central Portugal
Emilia Urbanek
Rory Walsh
Rick Shakesby
title_short Impacts of prescribed fire on soil loss and soil quality: An assessment based on an experimentally-burned catchment in central Portugal
title_full Impacts of prescribed fire on soil loss and soil quality: An assessment based on an experimentally-burned catchment in central Portugal
title_fullStr Impacts of prescribed fire on soil loss and soil quality: An assessment based on an experimentally-burned catchment in central Portugal
title_full_unstemmed Impacts of prescribed fire on soil loss and soil quality: An assessment based on an experimentally-burned catchment in central Portugal
title_sort Impacts of prescribed fire on soil loss and soil quality: An assessment based on an experimentally-burned catchment in central Portugal
author_id_str_mv 6d7e46bd913e12897d7f222ca78a718f
f3633408adc4dc477955b2eca4c4c9af
e446d5dc2dad5add13364081e45c090c
author_id_fullname_str_mv 6d7e46bd913e12897d7f222ca78a718f_***_Emilia Urbanek
f3633408adc4dc477955b2eca4c4c9af_***_Rory Walsh
e446d5dc2dad5add13364081e45c090c_***_Rick Shakesby
author Emilia Urbanek
Rory Walsh
Rick Shakesby
author2 Richard A Shakesby
Célia P.M Bento
Carla S.S Ferreira
António J.D Ferreira
Cathelijne R Stoof
Emilia Urbanek
Rory Walsh
Rick Shakesby
format Journal article
container_title CATENA
container_volume Forthcoming
container_start_page n/a
publishDate 2013
institution Swansea University
issn 0341-8162
doi_str_mv 10.1016/j.catena.2013.03.012
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Geography{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Geography
document_store_str 0
active_str 0
description Hillslope-scale losses of soil, organic matter and selected nutrients pre- and post-prescribed fire in the shrub-vegetated Vale Torto catchment with thin stony soil in central Portugal. The soil erosion results are compared with measurements: (1) on a nearby hillslope burned by wildfire and monitored at the hillslope scale; and (2) on long-unburned terrain at small-plot, hillslope- and catchment-scales. Hillslope-scale pre- and post-fire soil erosion was recorded over periods of 6 weeks to 5 months for (1) 9.5 months pre-fire and 27 months post-fire in the prescribed fire catchment, and (2) c. 3 years post-fire at the wildfire site. Organic matter content, pH and selected nutrients were measured in the eroded sediment and in pre- and post-prescribed fire surface soil. It is concluded that: (1) both types of fire (prescribed fire and wildfire) caused increased erosion compared with unburned terrain; and (2) the hillslope-scale post-prescribed fire soil losses were higher than many reported smaller-scale post-prescribed fire and post-wildfire erosion rates in the Mediterranean. By comparison, post-fire erosion for both fire types was less than that caused by some other types of common soil disturbance (e.g. types of tillage) and even that on undisturbed scrub in low rainfall areas of the Mediterranean. Total estimated post-prescribed fire particulate losses of organic matter and nutrients represent only 0.2-2.9% of the content in the upper 2 cm of soil, suggesting only a relatively small fire impact on soil quality, although few high-magnitude rainstorms following the fire may be a factor. The longer-term implications for soil conservation of repeated prescribed fire in the Mediterranean are explored and future research needs discussed.
published_date 2013-12-31T03:16:36Z
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score 11.012678

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