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Forests 2017, 8(6), 185; doi:10.3390/f8060185

Seed Origin and Protection Are Important Factors Affecting Post-Fire Initial Recruitment in Pine Forest Areas

1
Higher Technical School of Agricultural and Forestry Engineering, Castilla-La Mancha University, Campus Universitario s/n, 02071 Albacete, Spain
2
Departmento de Ciencias del Medio Natural, Universidad Pública de Navarra, Campus de Arrosadía s/n, 31006 Pamplona, Spain
3
Research Institute for Nature and Forest (INBO), Kliniekstraat 25, 1070 Brussels, Belgium
4
Northern Arizona University, School of Forestry, Flagstaff, 86011 AZ, USA
5
Centro de Capacitación y Experimentación Forestal, C/Vadillo-Castril s/n, Cazorla, 23470 Jaén, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Timothy A. Martin
Received: 23 April 2017 / Revised: 23 May 2017 / Accepted: 24 May 2017 / Published: 27 May 2017
(This article belongs to the Special Issue Effects of Post-Fire Management Activities on Forests)
View Full-Text   |   Download PDF [2795 KB, uploaded 27 May 2017]   |  

Abstract

Initial seedling recruitment is one of the most critical stages for plants in the Mediterranean basin. Moreover, wildfires and post-fire environmental conditions might deteriorate regeneration success, which can lead to problems for sustainable forest restoration and forest persistence. On this context, different seed origins and pine species may be better adapted to new environmental conditions remaining after forest fires and seed protection might modulate seedling initial recruitment. This study evaluates the effects of seed origin (Pinus nigra Arn. subsp. salzmannii Dunal (Franco) from lowland, midland and upland distribution areas), pine species (Pinus pinaster Aiton, Pinus sylvestris L. and Pinus nigra Arn. subsp. salzmannii Dunal (Franco)) and seed protection on seed emergence and early seedling survival after forest fires in the Cuenca Mountains. In addition, a greenhouse experiment was set up under controlled conditions to test seedling performance and to compare initial seedling growth of different P. nigra seed origins growing in field and greenhouse conditions. Results showed that wetter spring seasons and P. nigra seed origins from midland and upland distribution growing in their natural habitat distribution perform better that P. sylvestris and P. pinaster. Seed protection is an important factor modulating the above-mentioned trend. P. nigra seeds growing at the greenhouse experiment showed differences in growth for extreme (upland or lowland) P. nigra distribution. View Full-Text
Keywords: seed emergence; seedling survival; seedling growth; greenhouse experiment; Mediterranean pine species seed emergence; seedling survival; seedling growth; greenhouse experiment; Mediterranean pine species
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Lucas-Borja, M.E.; Candel-Pérez, D.; Onkelinx, T.; Fule, P.Z.; Moya, D.; de las Heras, J.; Tíscar, P.A. Seed Origin and Protection Are Important Factors Affecting Post-Fire Initial Recruitment in Pine Forest Areas. Forests 2017, 8, 185.

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