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首页> 外文期刊>Forest Ecology and Management >Post-fire regeneration patterns of Pinus nigra in a recently burned area in Mount Taygetos, Southern Greece: The role of unburned forest patches
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Post-fire regeneration patterns of Pinus nigra in a recently burned area in Mount Taygetos, Southern Greece: The role of unburned forest patches

机译：希腊南部Taygetos山最近被烧的地区黑松的火后再生方式：未烧森林斑块的作用

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摘要

Pinus nigra (black pine) is an ecologically and economically important species widely distributed around the Mediterranean Basin. P. nigra ecosystems have recently been affected by high severity fires occurring over the mountainous forest ecosystems of Southern Europe. The aim of this study is to investigate the post-fire regeneration patterns of black pine after a high severity crown fire which occurred on Mt Taygetos in Southern Greece. A network of 18 sites was selected to study black pine natural post-fire regeneration. Regeneration density was higher at the edges of patches that have remained unburned within the periphery of fire (0.406 individuals/m(2)) as compared to isolated burned areas (0.007 individuals/m(2)) although a significant between sites heterogeneity was recorded. Boosted regression trees analysis was used to explore the effects of environmental and microhabitat variables on black pine post-fire regeneration. The number of fires a site has experienced had a negative effect on regeneration density, while the presence of recovering ferns had a positive effect. The most important variable related to the black pine post-fire regeneration was distance from unburned patches. The result of the current study substantiates the importance of maintaining fire-resistant stands with large trees that are more likely to survive after a surface fire and which can also serve as seed sources for the recolonization of the burned area after severe crown fires
机译：黑松（黑松）是在地中海盆地周围广泛分布的具有生态和经济意义的物种。最近，南欧山区森林生态系统上发生的高烈度大火影响了黑僵菌的生态系统。这项研究的目的是调查希腊南部Mt Taygetos山发生的严重冠火后黑松的火后再生方式。选择了一个由18个站点组成的网络来研究黑松自然火后的再生。与孤立的烧伤区域（0.007个/ m（2））相比，火周边未燃烧的斑块边缘的再生密度更高（0.406个/ m（2）），尽管记录的地点之间存在显着差异。使用增强回归树分析来探索环境和微生境变量对黑松火后再生的影响。一个地点经历的火灾次数对再生密度具有负面影响，而回收蕨类植物的存在则具有正面影响。与黑松火后再生有关的最重要变量是与未燃斑块的距离。当前研究的结果证实了用大树维护耐火林的重要性，这些大树在地面大火后更容易幸存，并且还可以作为严重冠火后重新定殖燃烧区域的种子来源

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