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International Journal of Wildland Fire International Journal of Wildland Fire Society
Journal of the International Association of Wildland Fire
RESEARCH ARTICLE

Fuel characteristics and fire behaviour in mature Mediterranean gorse shrublands

Martín De Luis A E , Manuel J. Baeza B , José Raventós C and José C. González-Hidalgo D
+ Author Affiliations
- Author Affiliations

A Laboratory of Tree-Ring Research, University of Arizona, Tucson, AZ 85721, USA.

B Fundación CEAM, Parque Tecnológico, C/ Charles Darwin, 14, E-46980 Paterna, Valencia, Spain.

C Departamento de Ecología, Universidad de Alicante, Ap. 99, E-03080, Alicante, Spain.

D Departamento de Geografía y Ordenación del Territorio, Universidad de Zaragoza, Plaza San Francisco, s/n, E-50009, Zaragoza, Spain.

E Corresponding author. Present address: Departamento de Ecología, Universidad de Alicante, Ap. 99, E-03080, Alicante, Spain. Telephone: +34 96 590 3732; email: martin.deluis@ua.es

International Journal of Wildland Fire 13(1) 79-87 https://doi.org/10.1071/WF03005
Submitted: 29 January 2003  Accepted: 30 September 2003   Published: 8 April 2004

Abstract

Since the early 1990s, Mediterranean gorse shrublands have expanded significantly in the Mediterranean regions of Spain mainly as a result of the increase in the frequency and extension of forest fires. Mediterranean gorse (Ulex parviflorus), which has been described as a degradation stage of forest communities after fire, has also been described as a fire-prone community. Thus, its presence increases the risk that new fires might occur. In spite of this evidence, there is little information on both the composition and structural characteristics of these communities or the relationship that might exist between these vegetation characteristics and fire behaviour. In this paper we present the results of a characterization of the vegetative structure (plant density, specific composition, biomass fractions, and horizontal and vertical fuel distribution) in Mediterranean gorse. We also analyse fire behaviour using indicators obtained at different scales. Our results show mature Mediterranean gorse shrublands to be communities with high biomass values (3000–4000 g m−2) and high horizontal and vertical vegetation continuity, in which the proportion of fine dead fuel fractions with low moisture content is around 50% of the total phytomass present. Ulex parviflorus is the dominant species and its degree of dominance is a key element in the behaviour of fire. Both the fire-line intensity values and the fire severity values observed can be considered high with respect to those observed in other Mediterranean communities, thus confirming Mediterranean gorse as a high-risk community.

Additional keywords: Ulex parviflorus; fire-line intensity; fire severity; fuel structure; specific composition.


Acknowledgements

We acknowledge the Conselleria de Medio Ambiente (Regional Ministry of the Environment) and especially Ana Tomás and Jorge Suarez for their technical collaboration. Thanks to J. Scheiding for her linguistic revision. We also thank three anonymous referees for valuable comments on the manuscript. This work was supported by the Ministry of Science and Technology (Projects REN2003-07453 and REN2002-01023) and a Postdoctoral contract to De Luis, M. (Ref: EXT2003-0154).


References


Alexander ME (1982) Calculating and interpreting forest fire intensities. Canadian Journal of Botany  60, 349–357.


Andrews PL, Bevins CD, Carlton DW , Dolack M (2001) BehavePlus. Fire Modelling System Version 1.0.0 (USDA Forest Service: Rocky Mountain Research Station)

Aston AR , Gill AM (1976) Coupled soil moisture, heat and water vapour transfers. Australian Journal of Soil Research  14, 55–66.


Auld TD , O’Connell MA (1991) Predicting patterns of post-fire germination in 35 eastern Australian Fabaceae. Australian Journal of Ecology  16, 53–70.


Baeza MJ (2001). Aspectos ecológicos y técnicas de control de combustible (roza y quema controlada) en matorrales con alto riesgo de incendio dominados por Ulex parviflorus (Pourr.). Ph.D. thesis (Departamento de Ecología, Universidad de Alicante)

Baeza MJ, Raventós J , Escarré A (1998) Structural changes in relation to age in fire-prone Mediterranean shrublands. Proceedings of the International Conference on Forest Fire Research Coimbra.

Baeza MJ, de Luis M, Raventós J , Escarré A (2002) Factors influencing fire behaviour in shrublands of different stand ages and the implications for using prescribed burning to reduce wildfire risk. Journal of Environmental Management  65, 199–208.
Crossref | GoogleScholarGoogle Scholar | PubMed |

Basanta M, Diáz-Vizcaíno E ,  Casal M (1988) Structure of shrubland communities in Galicia (NW Spain). In Diversity and pattern in plant communities (Eds  HJ During, MJ Werger ,  JH Willems )  pp. 25–36. (SPB Academic Publishing: The Hague)

Bessie WC , Johnson EA (1995) The relative importance of fuels and weather on fire behavior in subalpine forests. Ecology  76, 747–762.


Botelho HS, Vega JA, Fernandes P , Rego FMC (1994) Prescribed fire behavior and fuel consumption in northern Portugal and Galicia maritime pine stands. Proceedings of the II International Conference on Forest Fire Research Coimbra.

Bradstock RA, Auld TD, Ellis ME , Cohn JS (1992) Soil temperatures during bushfires in semi-arid, mallee shrublands. Australian Journal of Ecology  17, 433–440.


Bradstock RA , Auld TD (1995) Soil temperatures during experimental bushfires in relation to fire intensity: Consequences for legume germination and fire management in south-eastern Australia. Journal of Applied Ecology  32, 76–84.


Brown JK (1981) Bulk densities of nonuniform surface fuels and their application to fire modelling. Forest Science  27, 667–683.


Burgan RE , Rothermel RC (1984) BEHAVE: fire behavior prediction and fuel modelling system—FUEL subsystem. USDA Forest Service, Intermountain Research Station General Technical Report INT-167 (Ogden, UT) 126 pp.

Burgan RE, Klaver RW , Klaver JM (1998) Fuel models and fire potential from satellite and surface observations. International Journal of Wildland Fire  8, 159–170.


Byram GM (1959) Combustion of forest fuels. In Forest fire: Control and use. (Ed.  KP Davis. )  pp. 61–89. (McGraw-Hill: New York)

Campbell IA (1977) Stream discharge, suspended sediment and erosion rates in the Red River Deer basin, Alberta, Canada. International Association of Hydrological Sciences  122, 244–259.


Canadell J , Fontanillas I (1987) Els efectes del foc sobre el sol i els nutrients de l´ecosistema. Quaderns d´Ecologia Aplicada  10, 145–156.


Carreira JA , Niell FX (1995) Mobilization of nutrients by fire in a semiarid gorse-scrubland ecosystem of southern Spain. Arid Soil Research and Rehabilitation  9, 73–89.


Chandler C,  Cheney P,  Thomas P,  Trabaud L,  Williams D (1983) Fire in forestry. Vol I: Forest fire behavior and effects (John Wiley & Sons: New York)  450 pp.

Cheney NP, Gould JS , Catchpole WR (1993) The influence of fuel, weather and fire shape variables on fire-spread in grasslands. International Journal of Wildland Fire  3, 31–44.


De la Torre A,  Alías L (1996) Suelos y vegetación en el Alto Vinalopó (Servicio de Publicaciones de la Universidad de Alicante: Alicante)  263 pp.

De Luis M, Garcia-Cano MP, Cortina J, Raventós J, Gonzalez-Hidalgo JC , Sanchez JR (2001) Climatic trends, disturbances and short-term vegetation dynamics in a Mediterranean shrubland. Forest Ecology and Management  147, 25–37.
Crossref | GoogleScholarGoogle Scholar |

De Luis M, Gonzalez-Hidalgo JC , Raventós J (2003) Effects of fire and torrential rainfall on erosion in a Mediterranean gorse community. Land Degradation & Development  14, 203–213.
Crossref | GoogleScholarGoogle Scholar |

De Luis M, Raventós J, Cortina J , Gonzalez-Hidalgo JC (In press) Sanchez JR Fire and torrential rainfall: effects on the perennial grass Brachypodium retusum. Plant Ecology ,


Debano LF, Dunn PH , Conrad CE (1977) Fire’s effect on physical and chemical properties of chaparral soils. USDA Forest Service General Technical Report WO-3 (Washington, D.C.)

Debano LF , Conrad CE (1978) The effects of burning on chaparral soils. Part I. Ecology  59, 489–497.


Díaz-Fierros F, Benito Rueda E ,  Pertez MR (1990) Solute loss and soil erosion in burned soil from Galicia (NW Spain). In Fire and ecosystems dynamics: Mediterranean and northern perspective (Eds  JG Goldammer ,  MJ Jenkins )  pp. 103–116. (SPB Academic Publishing: The Hague)

Elvira LM,  Hernando C (1989) ‘Inflamabilidad y energía de las especies de sotobosque.’ Colección Monografías INIA, n° 68  

Fernandes PAM (2001) Fire spread prediction in shrub fuels in Portugal. Forest Ecology and Management  144, 67–74.
Crossref | GoogleScholarGoogle Scholar |

Floyd AG (1966) Effect of fire upon weed seeds in the wet sclerophyll forests of northern New South Wales. Australian Journal of Botany  14, 243–256.


Fogarty LG (1996) Two rural/urban interface fires in the Wellington suburb of Karoi: assessment of associated burning conditions and fire control strategies. FRI Bulletin No. 197; Forest and Rural Fire Scientific and Technical Series Report No. 1

Francis CF ,  Thornes JB (1990) Runoff hydrographs from three Mediterranean vegetation cover types. In Vegetation and erosion (Ed.  JB Thornes )  pp. 364–384. (John Wiley & Sons: Chichester)

Gill AM (1981) Adaptative responses of Australian vascular plant species to fires. In Fire and the Australian biota (Eds  AM Gill, RH Groves ,  IR Noble )  pp. 243–271. (Australian Academy of Science: Canberra)

González-Hidalgo JC (1992). Procesos de erosión del suelo en el semiárido aragonés. Exposición topográfica y cubierta vegetal factores de erosión. Ph.D. thesis, Departamento de Geografía (Universidad de Zaragoza: Spain)

Gounot M (1969) ‘Méthodes d'étude quantitative de la vegetation.’ (Masson: Paris)  314 pp.

Gray JT (1982) Community structure and productivity in Ceanothus chaparral and coastal sage scrub of southern California. Ecological Monographs  52, 415–435.


Heim G (1974) L´utilité du concept de valeur énergétique en écologie: une étude basée sur des mesures effectuées sur des plantes méditerranéennes. Oecologia Plantarum  9, 281–286.


Hobbs RJ , Gimingham CH (1984) Studies on fire in Scottish heathland communities. I. Fire characteristics. Journal of Ecology  72, 223–240.


Johnson EA , Miyanishi K (1995) The need for consideration of fire behavior and effects in prescribed burning. Restoration Ecology  3, 271–278.


Molina MJ ,  Llinares JV (1998) Soil water dynamics in burned areas after a late summer rain. The role of fire intensity, microsite, sampling depth, and time of measurement. In Ecosystems and sustainable development (Eds  JL Usó, H Brebbia ,  H Power )  pp. 581–590. (Computational Mechanics Publication: Southampton, UK)

Molina MJ , Llinares JV (2001) Temperature–time curves at the soil surface in maquis summer fires. International Journal of Wildland Fire  10, 45–52.
Crossref | GoogleScholarGoogle Scholar |

Moreno JM , Oechel WC (1991a) Fire intensity and herbivory effects on post-fire resprouting of Adenostoma fasciculatum in southern Californa chaparral. Oecologia  85, 429–433.


Moreno JM , Oechel WC (1991b) Fire intensity effects on germination of shrubs and herbs in southern California chaparral. Ecology  72, 1993–2004.


Papió C (1990). Ecologia del foc y regeneració en garrigues y pinedes mediterránies. Ph.D. thesis (Universitat Autónoma de Barcelona) 315 pp.

Papió C , Trabaud L (1991) Comparative study of aerial structure of five shrubs of Mediterranean shrublands. Forest Science  37, 146–159.


Pérez B , Moreno JM (1998) Methods for quantifying fire severity in shrubland-fires. Plant Ecology  139, 91–101.
Crossref | GoogleScholarGoogle Scholar |

Piñol J, Filella I, Ogaya R , Peñuelas J (1998) Ground-based spectroradiometric estimation of live fine fuel moisture of Mediterranean plants. Agricultural and Forest Meteorology  90, 173–186.
Crossref | GoogleScholarGoogle Scholar |

Riggan PJ, Goode S, Jacks PM , Lockwood RN (1988) Interaction of fire and community development in chaparral of southern California. Ecological Monographs  58, 155–176.


Schimmel J , Granström A (1996) Fire severity and vegetation response in the boreal Swedish forest. Ecology  77, 1436–1450.


Soto B , Díaz-Fierros F (1997) Soil water balance as affected by throughfall in gorse (Ulex europeus L.) shrubland after burning. Journal of Hydrology  195, 218–231.

Crossref |

Soto B, Basanta R , Díaz-Fierros F (1993) Influence of wildland fire on surface runoff from a hillslope. Acta Geológica Hispánica  28, 95–102.


Soto B, Basanta R , Díaz-Fierros F (1997) Effects of burning on nutrient balance in an area of gorse (Ulex europaeus L.) scrub. The Science of the Total Environment  204, 271–281.
Crossref | GoogleScholarGoogle Scholar |

Specht RL (1969) A comparison of the clerophyllous vegetation characteristic of Mediterranean type climates in France, California and southern Australia: II. Dry matter, energy and nutrient accumulation. Australian Journal of Botany  17, 293–308.


Tatoni T (1992). Evolution post-culturale des agrosystémes de terrasses en Provence calcaire. Phytoécologie et impact humain. Ph.D. thesis (Universitè de Provence: Marseilla)

Trabaud L (1979) Etude du comportement du feu dans la Garrigue de Chêne à partir des températures et des vitesses de propagation. Annales des Sciences Forestieres  36, 13–38.


Trabaud L (1980) Impact biologique des feux de vegetation sur l'organisation. La structure et l'evolution de la vegetation des zones garrigues du Bas-Languedoc. Doctorat d‘Etat, Montpellier  

Usó JL, Mateu J, Karjalainen T , Salvador P (1997) Allometric regression equations to determine aerial biomasses of Mediterranean shrubs. Plant Ecology  132, 59–69.
Crossref | GoogleScholarGoogle Scholar |

Valette JC, Gomendy V, Marechal J, Houssard C , Gillon D (1994) Heat transfer in the soil during very low-intensity experimental fires: The role of duff and soil moisture content. International Journal of Wildland Fire  4, 225–237.


Vallejo VR ,  Alloza JA (1998) The restoration of burned lands: The case of eastern Spain. In Large forest fires (Ed.  JM Moreno. )  pp. 91–108. (Backhuys Publishers: Leiden)

Vélez R (2000) Actuación sobre los combustibles forestales. In La defensa contra incendios forestales. Fundamentos y experiencias (Ed.  A García-Brague )  pp. 1–86. (McGraw-Hill: Madrid)

Whelan RJ (1995) The ecology of fire (Cambridge University Press: Cambridge)  346 pp.

Whelan RJ , York J (1998) Post-fire germination of Hakea sericea and Petrophile sessilis after spring burning. Australian Journal of Botany  46, 367–376.