Assessment of Fire Effects on Surface Cover Changes and Forage Production (Case Study: Delfan County, Lorestan Province, Iran)

Document Type: Research and Full Length Article


1 Ph.D. Student of Range Management, Faculty of Agricultural Technology and Natural Resources, University of Mohagegh Ardabili, Ardabil, Iran

2 Assistant Professor, Faculty of Agricultural Technology and Natural Resources, University of Mohagegh Ardabili, Ardabil, Iran

3 Assistant Professor, Rangeland Research Division, Research Institute of Forests and Rangelands, Tehran, Iran


The aim of this study was to assess the regional effects of fire on the surface cover and forage production of mountainous rangelands of Delfan County, Lorestan province, Iran. The fire took placed in June 2007 with significant effects on the vegetation characteristics in the study area. Four fire affected sites were selected for sampling and a close area without fire was considered as control. Sampling was carried out using a random systematic method and the size of plots was determined using the minimal area framework. The number of plots was determined using a statistical method. Totally, the data of eight sites including four fire affected sites and four control sites were measured during four consecutive years in early July of each year after fire. In each site, four transects of 50m length were selected in the direction of slope as well as perpendicular to the slope and five plots were established along each transect. The characteristics of canopy cover percent, litter percent, bare soil, density and forage production were recorded and compared to the fire affected and control sites. One-way analysis of variance and Duncan multiple range test were used to compare the mentioned characteristics over years in each region separately. According to the results, forage production, canopy cover percent, the density of grasses and forbs and litter cover percent increased significantly while the density and canopy cover percent of shrub species on the fire affected area has decreased significantly. On the other hand, fire had decreased bare soil cover percent significantly but it had no significant effects on the canopy cover of annual grasses.


Baghestani Meybodi, N. and Zare, M. T., 2008. Fire behavior on rangeland plants yield and its application for improvement of steppic rangelands of Yazd province. Jour. Rangeland, 4: 327-341. (In Persian).

Brooks, M., Antonio, D. C., Richardson D. M., Grace, J. B., Keeley, J. E., Ditomaso, J. M., Hobbs, R., Pellant, M. and Pyke, D., 2004. Effects of invasive alien plants on fire regimes. Bioscience, 54: 677-688.

Bruhjell, D. and Tegart, G., 2001. Fire effect on soil. Ministry of Agriculture, Food and Fisheries. 108pp.

Cain, S. A., 1934. Studies of virgin hardwood forest. II. A comparison of quadrate sizes in a quantitative phytosociological study of Nash’s Woods, Posey County, Indiana. American Midland Naturalist, 15: 529–566.

Carleton, S. W. and Loftin, S. R., 2000. Response of 2 semiarid grasslands to cool-season prescribed fire. Jour. Range Managemant, 53: 52-61.

Cassie, L., Hebel, J., Smith, E. and Cromack, K., 2009. Invasive plant species and soil microbial response to wildfire burn severity in the Cascade Range of Oregon. Applied Soil Ecology, 42:150-159.

Certini, G., 2005. Effects of fire on properties of forest soils: a review. Oecologia, 143: 1-10.

Cook, J. G., 1994. Vegetation response to burning on Wyoming mountain-shrub big game ranges. Jour. Range Management, 47: 296-302.

Dale, G., Brockway, A., Gatewood, R. G. and Paris, R. B., 2002. Restoring fire as an ecological process in short grass prairie ecosystems: initial effects of prescribed burning during the dormant and growing seasons. Jour. Environmental Management, 65: 135-152.

Debano, L. F., Neary, D. G. and Folliott, P. F., 1998. Phosphorus dynamics of pinyon-juniper soils following simulated burning. Soil Science Society of America Journal, 52: 271-277.

Decastro, E. A. and Kauffman, J. B., 1998. A vegetation gradient of above ground biomass, root and consumption by fire. Jour. Tropical Ecology, 14(3): 263-283.

Fattahi, B. and Tahmasebi, A., 2010. Fire influence on vegetation changes of Zagros mountainous rangelands (Case study: Hamadan province). Rangeland, 4(2): 228-239. (In Persian).

Ghahreman, A., 1978-2008. Flora of Iran. Vol: 1-21, Research Institute of Forests and Rangelands Pub, Tehran, Iran. (In Persian).

Ghermandi, L., Guthmann, N. and Bran, D., 2004. Early post-fire succession in northwestern Patagonia grasslands. Jour. Vegetation Science, 15: 67-76.

Guevara, J. C., Stasi, C. R., Wuilloud, C. F. and Estevez, O. R., 1999. Effects of fire on rangeland vegetation in south-western Mendoza plains Argentina: composition, frequency, biomass, productivity and carrying capacity. Jour. Arid Environments 41: 27-35.

Harrod, R. J. and Reichard, S., 2001. Fire and invasive species within the temperate and boreal coniferous forests of western North America. In Galley, K.E.M., Wilson, T.P. (Eds.), The Role of Fire in the Control and Spread of Invasive Species: proceedings of the Invasive Species Workshop (pp: 95-101). Fire Conference 2000: the First National Congress of Fire Ecology, Prevention, and Management. Misc. Publication No. 11.Tall Timbers Research Station, Tallahassee, FL.

Haubensak, K., Antonio, C. D. and Wixon, D., 2009. Effect of fire and environmental variables and composition in grazed salt desert shrub lands of the Great Basin (USA). Jour. Arid Environments, 73: 643-650.

Javadi, S. A. and Mamoon, Z., 2011.Natural Burning Effects on Some Vegetation and Soil Characteristics of Rangeland (Case Study: PirGolSorkh Behbahan Rangeland). Jour. Renewable Natural Resources Research, 2(2): 45-54. (In Persian).

Korb, J. E., Johnson, N. C. and Covington, W. W., 2004.Slash pile burning effects on soil biotic and chemical properties and plant establishment: recommendations for amelioration. Restoration Ecology, 12: 52-62.

Kristofor, R. B., 2006. Soil physiochemical changes following 12 years of annual burning in humid-subtropical tall grass prairie. A hypothesis. Acta Ecologica, 30: 407-413.

Mesdaghi, M., 2004. Range Management in Iran. Astane Ghods Razavi Pub., 215pp. Mashad, Iran. (In Persian).

Moghadam, M. R., 2004. Ecology of Terrestrial Plants. Tehran University Pub., 700pp. (In Persian).

Morgan, J. W. and Lunt, I. D., 1999. Effects of time-since-fire on the tussock dynamics of a dominant grass in temperate Australian grassland. Jour. Biological Conservation, 88: 379-386.

Mozafarian, V. A., 1996. A dictionary of Iranian plants name. Farhang Maser Pub., 765pp. (In Persian).

Ortman, J. and Beran, D. D., 2008. Grassland management with prescribed Fire. Nebraska cooperative extension, EC., 148: 122-132.

Parks, C. G., Radosevich, S. R., Endress, B. A., Naylora, B. J., Anzinger, D., Rew, L. J., Maxwell, B. D. and Dwire, K. A., 2005.Natural and land use history of the Northwest Mountainous Ecoregions (USA) in relation to patterns of plant invasions. Plant Ecology, 7: 137-158.

Planning Deputy Governor of Lorestan, 2008. Province's land use planning, the first phase: Analysis of the existing structure, Vol.2, 217pp. (In Persian).

Provencher, L., Forbis, T. A., Frid, L. and Medlyn, G., 2007. Comparing alternative management strategies of fire, grazing and weed control using spatial modeling. Jour. Ecological Modeling, 209: 249-263.

Richard, F. R. and Hoffman, M. T., 2012. The historical ecology of Namibian rangelands: Vegetation change since 1876 in response to local and global drivers, Science of the Total Environment, 416: 276–288.

Sharifi, J. and Emani, A., 1999. Fire effect on vegetation and species composition. Iranian Jour. Natural Recourse ,59: 517-525. (In Persian).

Shokri, M., Safaian, N. and Atrakchali, A., 2002. Investigation of the effects of fire on vegetation variations in Takhti Yeylagh-Golestan national park. Iranian Jour. Natural Recourse, 55(2): 273- 281. (In Persian).

Snyman, H. A., 2004. Estimating the short-term impact of fire on rangeland productivity in a semi-arid climate of South Africa. Jour. arid environments 59: 685-697.

Takhtajan, A., 1986. Floristic regions of the world. University of California Press, Berkley.

Valentine, J. F., 1989. Range development and improvement, Academic Press, INC., New York, 457pp.