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Relationships Between Wildfires, Management Modalities of Community Areas, and Ownership Types in Pine Forests of Mainland Portugal
Small-scale Forestry ( IF 1.4 ) Pub Date : 2020-05-19 , DOI: 10.1007/s11842-020-09445-6
I. Skulska , I. Duarte , F. C. Rego , C. Montiel-Molina

Investigations of factors influencing wildfire risks in Mediterranean forest areas have rarely considered the possible influence of the ownership type and management modalities in forest areas owned and/or managed by rural communities, referred to as baldios in Portugal. This study aimed to analyse the relationship between forest ownership types and the management modalities of community forests in the distribution of wildfires in Pinus pinaster areas of Portugal over the past 40 years. We carried out a comparative analysis of P. pinaster forests and wildfires considering three ownership types (community, private, and state forests) and four different management modalities of the community lands (by local communities or local authorities through independent management or in co-management with national Forest Services). The protection status of the pine forests was also considered. We also evaluated the possible influence of topographic variables—elevation, slope, and aspect—and their relationships with ownership types, management modalities, and protection status. To evaluate the trends and making use of the existing cartography, the study period (1975 to 2017) was subdivided into three time periods (1975–1989, 1990–2009, and 2010–2017). The results revealed significant differences in the annual percentage of burned areas in different among ownership types but no differences among protected and unprotected areas. Baldios showed the highest percentage of burned area relative to their total area, but some differences between the management modalities are apparent. Furthermore, the proportion of burned area increased over the study period, particularly with a very large area burned in 2017, possibly reflecting climatic changes and a decrease in management activities. This indicates that forest management should be strengthened, with special attention to fuel management. Fuel reduction could be improved through the development of new bioeconomic activities in community forests.

中文翻译:

葡萄牙大陆松林中的野火,社区区域管理方式和所有权类型之间的关系

对影响地中海森林地区野火风险的因素进行的调查很少考虑到所有权类型和管理方式对农村社区拥有和/或管理的森林地区(在葡萄牙称为“ baldios”)的可能影响。这项研究旨在分析过去40年里,葡萄牙Pinus pinaster地区野火分布中森林所有权类型与社区森林经营方式之间的关系。我们对P. pinaster进行了比较分析考虑三种所有权类型(社区,私有和国有森林)和社区土地的四种不同管理方式的森林和野火(由地方社区或地方当局通过独立管理或与国家森林服务局共同管理)。还考虑了松林的保护状况。我们还评估了地形变量(高程,坡度和坡向)及其与所有权类型,管理方式和保护状态之间的关系的可能影响。为了评估趋势并利用现有的制图技术,将研究期(1975年至2017年)细分为三个时间段(1975-1989年,1990-2009年和2010-2017年)。结果表明,所有权类型之间不同的烧毁面积年百分比存在显着差异,但保护区和非保护区之间没有差异。dio鱼相对于它们的总面积显示出最高的燃烧面积百分比,但是在管理方式之间存在一些明显差异。此外,在研究期间,燃烧面积的比例有所增加,特别是2017年燃烧面积很大,这可能反映了气候变化和管理活动的减少。这表明应加强森林管理,特别注意燃料管理。通过在社区森林中开展新的生物经济活动,可以改善燃料的减少。dio鱼相对于它们的总面积显示出最高的燃烧面积百分比,但是在管理方式之间存在一些明显差异。此外,在研究期间,燃烧面积的比例有所增加,特别是2017年燃烧面积很大,这可能反映了气候变化和管理活动的减少。这表明应加强森林管理,特别注意燃料管理。通过在社区森林中开展新的生物经济活动,可以改善燃料的减少。dio鱼相对于它们的总面积显示出最高的燃烧面积百分比,但是在管理方式之间存在一些明显差异。此外,在研究期间,燃烧面积的比例有所增加,特别是2017年燃烧面积很大,这可能反映了气候变化和管理活动的减少。这表明应加强森林管理,特别注意燃料管理。通过在社区森林中开展新的生物经济活动,可以改善燃料的减少。这表明应加强森林管理,特别注意燃料管理。通过在社区森林中开展新的生物经济活动,可以改善燃料的减少。这表明应加强森林管理,特别注意燃料管理。通过在社区森林中开展新的生物经济活动,可以改善燃料的减少。
更新日期:2020-05-19
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