Fuel vertical structure affects fire sustainability and behaviour of prescribed burning in Spartium junceum shrublands
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Fuel and fire behaviour in semi-arid mallee-heath shrublands
An experimental burning program was set up in South Australia aimed at characterizing fuel dynamics and fire behaviour in mallee-heath woodlands. Fuel complexes in the experimental area comprised mallee and heath vegetation with ages (time since fire) ranging from 7 to 50 years old. Dominant overstorey mallee vegetation comprised Eucalyptus calycogona, E. diversifolia, E. incrassate and E. lept...
متن کاملSparticarpin: A Pterocarpan Phytoalexin from Spartium junceum
Although pterocarpan phytoalexins commonly ac cumulate in the fungus-inoculated tissues of papilionate legumes, only three compounds of this type possess oxygenation at C-2 [1, 2]. They are 2,3,9-trimethoxypterocarpan (1), 2,9-dimethoxy-3-hydroxypterocarpan (2-methoxymedicarpin, 2) and 2,3,9-trimethoxy-4-hydroxypterocarpan (3) all of which co occur with pisatin in the Fusarium solani f. sp. p...
متن کاملExperimental control of Spanish broom (Spartium junceum) invading natural grasslands
A group of legumes generically known as brooms are among the most successful shrubs invading grasslands in South America and other regions. These species share a set of biological features that enhance their invasiveness, such as abundant and long-lasting seed banks, aggressive root systems and rapid growth, combined with their ability for re-sprouting after cutting or burning and for avoiding ...
متن کاملAlkaloids in Stem Roots of Nicotiana tabacum and Spartium junceum Transformed by Agrobacterium rhizogenes
Gesellschaft für Biotechnologische Forschung, Mascheroder Weg, D-3300 Braunschweig-Stöckheim, Bundesrepublik Deutschland Z. Naturforsch. 42c, 69—72 (1987); received August 21/September 22, 1986 Agrobacterium rhizogenes, Alkaloids, Nicotine, Cytisine, Nicotiana, Spartium The growth of root hairs from stems of Nicotiana tabacum and Spartium junceum was induced by Agrobacterium rhizogenes. Stem ro...
متن کاملInitial fuel temperature effects on burning rate of pool fire.
The influence of the initial fuel temperature on the burning behavior of n-heptane pool fire was experimentally studied at the State Key Laboratory of Fire Science (SKLFS) large test hall. Circular pool fires with diameters of 100mm, 141 mm, and 200 mm were considered with initial fuel temperatures ranging from 290 K to 363 K. Burning rate and temperature distributions in fuel and vessel wall w...
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ژورنال
عنوان ژورنال: Annals of Forest Science
سال: 2013
ISSN: 1286-4560,1297-966X
DOI: 10.1007/s13595-013-0327-3