مورد إلكتروني
Relevance of terpenoids on flammability of Mediterranean species An experimental approach at a low radiant heat flux
العنوان: | Relevance of terpenoids on flammability of Mediterranean species An experimental approach at a low radiant heat flux |
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بيانات النشر: | Italian Society of Silviculture and Forest Ecology (SISEF) 2017 |
تفاصيل مُضافة: | Della Rocca, G. Madrigal Olmo, Javier Marchi, E. Michelozzi, M. Moya, B. Danti, R. |
نوع الوثيقة: | Electronic Resource |
مستخلص: | One of the major factors influencing forest fuel combustion are terpenoids, a fraction of flammable Biogenic Volatile Organic Compounds (BVOCs) produced and stored by most Mediterranean species. The qualitative and quantitative effect of terpenoids on flammability has been only partially explained. In this study several major terpenoid-storing Mediterranean species (common cypress and three pines) were considered and compared to Holm oak as a reference non-storing species. The terpenoids were quantified via gas chromatography (GC-MS) analysis from both live fine fuel (LFF) and litter samples, and the relations between flammability and the terpenoids content were investigated by categories (Monoterpenoids, oxygenated Monoterpenoids, Sesquiterpenoids). The effect of fuel moisture content and species on ignition probability of LFF was also explored. A very different ignition probability was observed at the same fuel moisture content for the different species (Pinus spp. > C. sempervirens > Q. ilex). The stored terpenoids explained 19% to 50% of the whole flammability of both LFF and litter. Fuel moisture content (FMC) did not substantially change the relative effect of terpenoids on flammability, except in C. sempervirens. Monoterpenoids do not seem to significantly affect flammability, while sesquiterpenoids greatly influenced most flammability components, though their relative effect varied among species. A relation between storing structure of terpenoids and flammability was suggested. The results of this study indicate that isoprenoids should be included in physical models of the prediction and propagation of wildfire in Mediterranean vegetation as significant factors in driving flammability. © SISEF. |
مصطلحات الفهرس: | Fuel Moisture Content, Ignition, Live Fine Fuel, Terpene-storing Species, Terpenoids Content, Sesquiterpenoids, Litter, journal article |
URL: | |
الإتاحة: | Open access content. Open access content http://creativecommons.org/licenses/by-nc-sa/4.0 openAccess |
ملاحظة: | English |
أرقام أخرى: | CTK oai:digital.csic.es:10261/293298 iForest 10: 766-775 (2017) 1971-7458 10.3832/ifor2327-010 1373156060 |
المصدر المساهم: | CSIC From OAIster®, provided by the OCLC Cooperative. |
رقم الأكسشن: | edsoai.on1373156060 |
قاعدة البيانات: | OAIster |
الوصف غير متاح. |