Forest fires produce a major impact on soil, water and vegetation. Despite the amount of research published on this subject, there are two major problems that hamper the fully understanding of on and off-site impacts of forest fires. They include methodological problems steaming from the uniqueness of burned soil properties, easily erodible, by the fast degradation they undergo over a short period of time immediately after fire and by the meaning of the impacts at different scales.
Monitoring attempts to understand processes in burned areas are hindered by limitations of measuring techniques, that prevent the correct quantification of erosion yields and the processes that give rise to peak flows. A further limitation arises from the poor knowledge on how properties and processes at one scale influence degradation processes at larger scales, both on and off site.
This paper presents a reflection about the limitations of some of the methods and techniques more frequently used to assess erosion yields and hydrological responses following fires, and their significance at different scales of analysis.
It also shows the potential of nested approaches in the acquisition of an improved insight in to the problem and in the identification of the relevant processes at each scale and how they influence degradation processes at larger areas. It is shown that soil and land use patterns, play a crucial role in reducing or enhancing the hydrological and sediment yield and transport processes between scales.
The Portuguese experience in managing fire effects
FERREIRA AJD, SILVA JS, COELHO COA, BOULET AK e KEIZER JJ
Stoof, C.R., De Kort, A., Bishop, T.F.A., Moore, D., Wesseling, J.G., Ritsema, C.J. (2010). How rock fragments and soil moisture affect soil temperatures during fire. Soil Science Society of America Journal (accepted).
Stoof, C.R., Wesseling, J.G., Ritsema, C.J. (2010). Effects of fire and ash on soil water retention. Geoderma 159 (3-4), p. 276-285.
Moore, D., Kostka, S.J., Boerth, T.J., Franklin, M., Ritsema, C.J., Dekker, L.W., Oostindie, K., Stoof, C.R., Wesseling, J. (2010), The effect of soil surfactants on soil hydrological behavior, the plant growth environment, irrigation efficiency and water conservation. J Hydrol. Hydromech 58 (3), p 142-148.
Stoof, C.R.; Moore, D.; Ritsema, C.J.; Dekker, L.W. (2011) Natural and fire-induced soil water repellency in a Portugese Shrubland, Soil Science Society of America Journal 75 (6). - p. 2283 - 2295.
Esteves, T.C.J; Kirkby, M.J.; Shakesby, R.A.; Ferreira, A.J.D.; Soares, J.A.A.; Irvine B.J.; Ferreira, C.S.S.; Coelho, C.O.A., Carreiras, M.A. (2011) Mitigating land degradation caused by wildfire: application of the PESERA model to fire-affected sites in central Portugal. Geoderma Special Issue FESP, 2011. In press.
Ferreira, A.J.D.; Prats, S.; Ferreira, C.S.S.; Malvar, M.; Coelho, C.O.A.; Carreiras, M.; Esteves, T.(2009) Los incêndios florestales en Portugal. Aportes para la comprensión del impacto em la degradación de suelos y aguas. In Cátedra Divulgación de la Ciência, Universitat de Valencia: Efectos sobre los incêndios florestales sobre los suelos en España. 2009. ISBN 987-84-370-7653-9
In preparation
Ferreira AJD, Prata-Alegre S, Coelho COA, Ferreira CSS, Bento C, Shakesby RA, Stoof C, Ritsema CJ (in prep) Overview of SWC techniques to mitigate soil degradation following wildfires. Catena, DESIRE special issue
Ferreira AJD, Gonzales-Pelayo O, Rubio JL, Coelho COA, Ferreira CSS, Esteves T, Carreira M, Bento C, Valente S, Palheiro P, Ritsema CJ (in prep) Comparative analysis of policies to deal with wildfire risk Land Degradation and Development, DESIRE special
N. Jones, J. de Graaff, F. Duarte, I. Rodrigo, A. Poortinga (in prep) Farming systems in two less favoured areas in Portugal: their development over the last two decades and their contribution to sustainable land management Land Degradation and Development, DESIRE special issue
Conferences
FERREIRA AJD, COELHO COA, SHAKESBY RA, BOULET AK, ALEGRE SP, STOOF C E KEIZER JJ (2008) Connectivity and thresholds in water and sediment transport in burned areas, Portugal. Final Cost 634 Conference, Aveiro 30th June – 4th July 2008, p. 66.
FERREIRA AJD, BAPTISTA I, TAVARES J, CARREIRAS M, COELHO COA, REIS A, SPENCER J, MENDES JC, GOMES I e RITSEMA CJ (2008) Definição de estratégias de combate à degradação dos solos e à desertificação em Portugal e em Cabo Verde no âmbito do projecto DESIRE. Workshop Internacional sobre Clima e Recursos Naturais nos países de língua portuguesa: Parcerias na Área do Clima e Ambiente. Cabo Verde, Ilha do Sal, 02 a 07 de Março de 2008.
FERREIRA AJD (2007) Spatial and temporal patterns of solute loss following wildfires in central Portugal. Workshop Estratégias e respostas para minimizar o efeito do impacte dos fogos florestais na quantidade e na qualidade da água. LNEC, 12 de Dezembro de 2007.
PRATS SA, AMARAL LP, COELHO COA, FERREIRA AJD, PINHEIRO A, BARRAGÁN F e BOULET AK (2008). Mitigation techniques and strategies to reduce soil and water degradation immediately after forest fires. Final Cost 634 Conference, Aveiro 30th June – 4th July 2008, p106.
PRATS SA, PINHEIRO A, AMARAL L, BOULET AK, COELHO COA, FERREIRA AJD (2008) Comparison of different techniques of soil and water conservation after the fires based on a literature review. Final Cost 634 Conference, Aveiro 30th June – 4th July 2008, p116.
STOOF CR, FERREIRA AJD, FERREIRA C E SHAKESBY RA (2008) Explaining post-fire hydrology and erosion: the value of a nested-scale approach in quantifying the effect of controlled fire. Final Cost 634 Conference, Aveiro 30th June – 4th July 2008, p. 110
FERREIRA AJD (2009) El impacto de los incendios forestales sobre los procesos de degradación del suelo y agua. Implicaciones para mejorar la gestión del paisaje. Foro Luis Vives, Valência, 2 de Abril de 2009.
FERREIRA CSS, SHAKESBY RA, WALSH RPD, FERREIRA AJD, GONZÁLEZ-PELAYO O, URBANEK E, RUBIO JL (2009) Fire impact on soil hydrological properties and soil erosion: the effects of geology, fire type and severity. International Conference on Ecohydrology and Climat Change, Tomar (Portugal), 10-12 Setembro.
FERREIRA CSS; SHAKESBY RA; WALSH RPD; FERREIRA AJD; URBANEK E (2009) Assessment of soil erosion after wildfire at hillslope and small-plot scales, central Portugal. 2nd International Seminar on Small Catchments, Palma de Maiorca (Espanha), 6 - 8 Maio.
FERREIRA CSS; SHAKESBY RA; WALSH RPD; FERREIRA AJD; URBANEK E (2009) Impacte dos incêndios na erosão e perda de nutrientes dos solos: Caso de estudo de Camelo. Encontro Anual da Sociedade Portuguesa da Ciência do Solo, Faro (Portugal), 8-10 Julho.
GONZÁLEZ-PELAYO O; FERREIRA CSS; FERREIRA AJD; ANDREU V; RUBIO JL (2009) Impacte do fogo controlado nas propriedades hidrológicas dos solos calcáricos– Estudo experimental de Podentes Encontro Anual da Sociedade Portuguesa da Ciência do Solo, Faro (Portugal), 8-10 Julho
SHAKESBY RA, FERREIRA CSS, WALSH RPD, FERREIRA AJD, STOOF C, URBANEK E (2009) Prescribed fire impacts on soil erosion, central Portugal. International Geomorphology Conference, Melburn (Australia), 6-11 Julho.
SHAKESBY RA, FERREIRA AJD, FERREIRA CSS, STOOF CR , URBANEK E, AND WALSH RPD (2009). Significant or negligible sediment and nutrient losses after fire? Pre- and post-fire comparisons. European Geosciences Union, General Assembly, Viena (Austria), 19 - 24 Abril.
Stoof, C.R. (2009). Fires, and their effects on soils and hydrology. Fire in Human Evolution, Human History, and Human Society. KNAW Academy Colloquium, Amsterdam (The Netherlands). 15-17 December 2009.
Stoof, C.R., Slingerland, E.C., Mol, W., Van den Berg, J., De Kort, A., Drooger, S., Wesseling, J.G., Ferreira, A.J.D., Ritsema, C.J. (2009). Wildfires vs. prescribed fires in north-central Portugal: impact on soil properties. 7th International Conference on Geomorphology, Melbourne (Australia), 6-11 July 2009.
Shakesby, R.A., Ferreira, C.S.S., Urbanek, E., Ferreira, A.J.D., Stoof, C.R., Walsh, R.P.D. (2009). Plot- to catchment-scale impacts of prescribed fire on soil erosion, central Portugal. 7th International Conference on Geomorphology, Melbourne (Australia), 6-11 July 2009.
WALSH RPD, FERREIRA CSS, LEIGHTON-BOYCE G, URBANEK E, SHAKESBY RA, FERREIRA AJD, STOOF C & DOERR S (2009) Hydrophobicity, overland flow and erosion: Influences of local spatial variability, vertical route ways and switching dynamics. European Geosciences Union, General Assembly, Viena (AUSTRIA), 19 – 24 April.
Shakesby, R.A., Ferreira, C.S.S., Walsh, R.P.D., Ferreira, A.J.D., Urbanek, E., Stoof, C.R., (2010). Is timing of prescribed fire critical for limiting post-fire erosion? Lessons from Portugal. EGU General Assembly, Vienna (Austria), 2-7 May 2010.
WALSH RPD, FERREIRA CSS, URBANEK E, SHAKESBY RA, DOERR SH, FERREIRA AJD, LEIGHTON-BOYCE G, STOOF CR (2009) Timescales and three-dimensional nature of switching between hydrophobic and hydrophilic states in stony Portuguese soils. International Geomorphology Conference, Melburn (Australia), 6-11 Julho.
Stoof, C.R. (2010). Fire effects on soils and hydrology in a small Portuguese mountain catchment. Nederlands Aardkundig Congres (NAC) 10, Veldhoven, The Netherlands. 22-23 April 2010.
Moore, D., Kostka, S., Boerth, T., McMillan, M., Ritsema, C., Dekker, L., Oostindie, K., Stoof, C., Wesseling, J. (2010) Impact of Soil Water Repellency on Hydrological Properties of Soil, the Plant Growing Environment, Irrigation Efficiency and Water Consumption. EGU General Assembly, Vienna (Austria), 2-7 May 2010.
Shakesby, R.A., Stoof, C.R., Ferreira, C.S.S., Walsh, R.P.D., Urbanek, E., A.J.D. Ferreira (2010). Monitoring post-fire erosion from plot- to catchment scale using a nested scale approach. EGU General Assembly, Vienna (Austria), 2-7 May 2010.
Esteves, T.C.J.; Ferreira, A.J.D.; Soares, J.A.A.; Kirkby, M.J.; Shakesby, R.A.; Irvine B.J. Ferreira, C.S.S.; Coelho, C.O.A., Carreiras, M.A. (2010) Using PESERA to manage desertification processes following wildfires in Góis and Mação, Portugal. International Conference on Combating Land Degradation in Agricultural Areas (LANDCON 2010) 11 a 15 October 2010, Xi’an, China
Shakesby, R.A., Ferreira, C.S.S., Walsh, R.P.D., Urbanek, E., Ferreira, A.J.D., Stoof, C.R. (2010). Soil degradational effects of prescribed fire, central Portugal. International Conference on Combating Land Degradation in Agricultural Areas (LANDCON 1010). Xi’an (Shaanxi), China, 11-15 Oct 2010.
Stoof, C.R. (2010). Earth, Water and Fire. Seminar of the Soil and Water Lab, Cornell University, Ithaca (NY), USA. 22 Oct 2010.
Stoof, C.R. (2010). Forest fires and their effects. Seminar ‘Sao Martinho das Mulheres’, Woman International Group Coimbra, Portugal. 21 Nov 2010.
Shakesby, R., Ferreira, C., Walsh, R., Urbanek, E., Ferreira, A., Stoof, C. (2010). Temporal changes in sediment, organic matter and nutrient losses following an experimental fire in Atlantic-Mediterranean heath, central Portugal, In D. X. Viegas, (ed.) VI International Conference on Forest Fire Research, Coimbra, Portugal, 15-18 Nov 2010.
Valente, S.; Coelho, C.; Moreira, J.; Ferreira, A.; Carreiras, M.; Soares, J.; Carvalho, T. (2011) Methodology for participatory SLM appraisal and selection – the Portuguese experience. International Conference on Combating Land Degradation in Agricultural Areas (LANDCON 2010) 11 a 15 October 2010, Xi’an, China
Stoof, C.R.; Fernandes, R.E.S.; Stoorvogel, J.; Esteves, T.; Ferreira, C.S.S.; Ferreira, A.J.D.; Ritsema, C.J. (2010) What you see is not always what you get – above and belowground heating and impact of a catchment-scale experimental fire. In VI International Conference on Forest Fire Research. 2010. Coimbra: 15 a 18 Novembro (Oral Comunication)
Esteves T, Ferreira, A, Soares J, Kirkby M, Shakesby R, Irvine B, Ferreira CS, Coelho C, Carreiras M (2011) Using PESERA to manage desertification processes following wildfires in Góis and Mação, Portugal. FESP III, International Meeting of Fire Effects on Soil Properties, 15-19 March 2011, Guimarães. Portugal.
Esteves, T.; Soares, J.; Ferreira, A.D.; Carreiras, M.; Valente, S.; Coelho, C. (2011) WOCAT Mapping: Uma abordagem SIG para o município de Góis
II Encontro de Sistemas de Informação Geográfica - Aplicações SIG em Recursos Agro-Florestais e Ambientais 19 - 20 May 2011, Castelo Branco, Portugal
Ferreira, AJD, Shakesby, RA, Coelho, C, Ferreira, CS, Bento, C, Esteves, T, Carreiras, M (2011) The impact of fire on the spatial and temporal distribution of hydrologic and geomorphologic processes at slope and catchment scales. Geophysical Research Abstracts, 13, #13583. European Geosciences Union General Assembly 3-8 April 2011, Vienna, Austria
Esteves, T.C.J., Kirkby, M.J., Shakesby, R.A., Ferreira, A.J.D., Soares, J.A.A., Ferreira, C.S.S., Coelho, C.O.A., Bento, C.P.M. and Carreiras, M.A. (2012) PESERA model application in the Portuguese study areas: Góis and Mação. Geophysical Research Abstracts 14, EGU2012-13545.
Bento, C.P.M., Shakesby, R.A., Walsh, R.P.D., Ferreira, C.S.S., Ferreira, A.J.D. and Urbanek, E. (2012) Testing the effectiveness of pine needlecast in reducing post-fire soil erosion using complementary experimental approaches. Geophysical Research Abstracts 14, EGU2012-12510.
Ferreira, A.J.D., Prats-Alegre, S., Coelho, C.O.A., Ferreira, C.S.S.,Bento, C., Shakesby, R.A., Stoof, C.R. and Ritsema, C.J. (2012) Overview of SWC techniques to mitigate soil degradation following wildfires. Geophysical Research Abstracts 14, EGU2012-13418.
Newspaper articles
Stoof, C. (2009). ‘Experimental fire provides knowledge over damage after forest fires.’ www.sciencedaily.com, 26 Feb 2009.
Theses
Stoof, C. 2011. Fire effects on soil and hydrology, 182 p., ISBN 978-90-8585-915-4. PhD Thesis Wageningen University
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