Influence of tree size, reduced competition, and climate on the growth response of Pinus nigra Arn. salzmannii after fire
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After wildfire, surviving trees are of major ecological importance as they can help in the post-fire regeneration process. Although these trees may be damaged, they may also benefit from reduced fuel hazard and competition. However, little is known about the long-term growth response of surviving trees.
This study aims to explain short- to long-term variations in the postfire growth of surviving black pines in an area burnt in 1994, focusing on levels of fire severity and tree sizes.
Relative basal area increments were used to detect time-course variations in postfire radial tree growth depending on fire severity. Linear mixed-effects models were used to describe the factors affecting postfire ring growth.
In the short term, fire caused stronger reduction in growth in small trees with increasing bole char height. However, as time since fire increased, a positive effect of fire on growth due to reduced competition counteracted the short-term fire impacts. Indeed, small surviving trees demonstrated a surge in growth 15 years after the fire.
It was concluded that reduced competition might offset the short-term negative effects of fire in surviving black pines.
KeywordsPostfire growth Black pine Low-intensity fire Surface fire Dendrochronology Fire effects Long-term growth
We thank Dr. Miquel de Cáceres and Dr. J.J Camarero for their useful comments and Mario Beltrán for producing some of the figures. We are also grateful to Asier Larrañaga and the GRAF team for their help in identifying the study zone, and Martín Muller and Marta Vegas who assisted in the field work. This study was funded by the Spanish Ministry of Economy and Competitiveness under the framework of the ForBurn project (AGL2012-40098-C03-01). José-Ramón González-Olabarria also acknowledges the Ramon y Cajal program of the Spanish Ministry for Economy for providing financial support.
- Botelho HS, Fernandes P, Loureiro C (1998) Growth response of maritime pine (Pinus pinaster) trees to high-intensity prescribed fires. In: Viegas DX (ed) Proceedings of the 3rd International Conference on Forest Fire Research & 14th Fire and Forest Meteorology Conference ADAI. University of Coimbra, pp 1863–1873Google Scholar
- Busse MD, Simon SA, Riegel GM (2000) Tree-growth and understory responses to low-severity prescribed burning in thinned Pinus ponderosa forests of central Oregon. For Sci 46:258–268Google Scholar
- Cook ER, Holmes RL (1984) Users manual for program ARSTAN. Laboratory of Tree-Ring Research, TucsonGoogle Scholar
- Fritts HC (1976) Tree rings and climate. Academic, LondonGoogle Scholar
- Gonzalez-Olabarria JR, Palahi M, Pukkala T, Trasobares A (2008) Optimising the management of Pinus nigra Arn. stands under endogenous risk of fire in Catalonia. Inv Agrar Sist Recur For 17:10–17Google Scholar
- Gonzalez-Rosales A, Rodriguez-Trejo DA (2004) Effect of crown scorch on diameter growth of Pinus hartwegii Lindl. at the Distrito Federal, Mexico. Agrociencia 38:537–544Google Scholar
- Holmes RL (1983) Computer-assisted quality control in tree ring dating and measurement. Tree-Ring Bull 43:69–75Google Scholar
- Keyser TL, Smith FW, Shepperd WD (2010) Growth response of Pinus ponderosa following a mixed-severity wildfire in the Black Hills, South Dakota. West J Appl For 25:49–54Google Scholar
- Lilieholm RJ, Hu SC (1987) Effect of crown scorch on mortality and diameter growth of 19-year-old loblolly pine. South J Appl For 11:209–211Google Scholar
- Mutch LS, Swetnam TW (1995) Effects of fire severity and climate on ring-width growth of giant sequoia after burning. In: Brown JK, Murch RW, Spoon CW, Wakimoto RH (eds) Proceedings: Symposium on Fire in Wilderness and Park Management. USDA Forest Service Intermountain Research Station, Missoula, pp 241–246Google Scholar
- Reinhardt ED, Ryan KC (1988) Eight-year tree growth following prescribed under-burning in a western Montana Douglas-fir/western larch stand. Research Note - USDA Forest Service Intermountain Research StationGoogle Scholar
- Retana J, Espelta JM, Habrouk A, Ordonez JL, de Sola-Morales F (2002) Regeneration patterns of three Mediterranean pines and forest changes after a large wildfire in northeastern Spain. Ecoscience 9:89–97Google Scholar
- Rinn F (1996) TSAP-reference manual. Version 4.67. Rinntech, HeidelbergGoogle Scholar
- Stokes MA, Smiley TL (1968) An introduction to tree-ring dating. University of Chicago Press, ChicagoGoogle Scholar
- Sumner GN, Romero R, Homar V, Ramis C, Alonso S, Zorita E (2003) An estimate of the effects of climate change on the rainfall of Mediterranean Spain by the late twenty first century. Clim Dyn 20:789–805Google Scholar
- Waldrop TA, Van Lear D (1984) Effect of crown scorch on survival and growth of young loblolly pine. South J Appl For 8:35–40Google Scholar