Arid
DOI10.2495/FIVA080291
Aleppo pine regeneration after fire along an aridity gradient
Heras, J. De las1; Moya, D.1; Lopez-Serrano, F. R.1; Eugenio, M.2; Espelta, J. M.2
通讯作者Heras, J. De las
会议名称1st International Conference on Modelling, Monitoring and Management of Forest Fires
会议日期2008
会议地点Toledo, SPAIN
英文摘要

In the Mediterranean Basin, the number of large-scale fires and, consequently, the area of regenerated forests after a fire have been increasing over the last few decades. Mediterranean pine tree stand regeneration shows differences in growth and reproductive characteristics depending on site quality. Aleppo pine (Pinus halepensis Mill.) is an important obligate seeder species occupying a large surface in this area. In order to study growth and reproductive characteristics depending on different climatic conditions, six sites with similar characteristics (edaphic, exposure, slope) burned in the summer of 1994 were selected along a climate gradient. Different precipitation values determined three different ombroclimates: dry-subhumid, dry and semi-arid. Ten years after the fires, data on growth and cone production were collected from these areas in order to study the pattern of growth and reproduction and the influence of site quality (climate) on them.


Results showed significantly higher values for growth and several cone characteristics; furthermore, they were positively related to site quality. Viability and seed germination percentages were higher in sites located in dry-subhumid areas. Serotiny was highest in dry locations (southern sites), and lower percentages were found in low tree density sites. The number of reproductive trees was higher northwards and the reproductive phase was reached in younger stands with lower tree density. In conclusion, results showed a geographical gradient based upon growth and reproductive characteristics, decreasing southwards in contrast to serotiny, which increases in southern sites. Density was found to be a significant factor influencing overall pine stand development.


英文关键词climatic gradient serotiny reproductive characteristics site quality
来源出版物MODELLING, MONITORING AND MANAGEMENT OF FOREST FIRES
ISSN1743-3541
出版年2008
卷号119
页码289-+
ISBN978-1-84564-141-2
出版者WIT PRESS
类型Proceedings Paper
语种英语
国家Spain
收录类别CPCI-S
WOS记录号WOS:000260498200029
WOS关键词POSTFIRE REGENERATION ; CONE PRODUCTION ; HALEPENSIS ; STANDS ; MANAGEMENT ; SEROTINY ; DENSITY ; SIZE ; AGE
WOS类目Ecology ; Environmental Sciences ; Forestry
WOS研究方向Environmental Sciences & Ecology ; Forestry
资源类型会议论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/297257
作者单位1.Univ Castilla La Mancha, Escuela Tecn Super Ingn Agronomos Albacete, E-13071 Ciudad Real, Spain;
2.Univ Autonoma Barcelona, CREAF, E-08193 Barcelona, Spain
推荐引用方式
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Heras, J. De las,Moya, D.,Lopez-Serrano, F. R.,et al. Aleppo pine regeneration after fire along an aridity gradient[C]:WIT PRESS,2008:289-+.
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