Browsing by Subject "Matorral"

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    Morfología Fluvial.-El matorral como protector del suelo y los recursos hídricos en la Sierra de Enguera. Valencia. España. Implicaciones económicas de su manejo.
    Cerdà, A.; Jiménez-Morena, A.; Bodí, M.B.; Universidad de Murcia
    Abstract John Thornes found that scrubland (matorral) was a key factor to control soil erosion on Mediterranean mountains. His research works inspired many scientist that researched the impact of scrubland changes and management on semiarid ecosystems. An experiment carried out on the El Teularet-Sierra de Enguera experimental station in 2004 show the erosion rates on a 30-years abandoned orchard with dense vegetation cover of Ulex parviflorus and Cistus albidus and a 20-year old fire affected Maquia with Quercus coccifera, Pistacia lentiscus and Juniperus oxycedrus. The 8 (4 at each treatment) plots (1, 2, 4 and 16 m2) under 715 mm of natural rainfall contributed with low runoff, sediment concentration and soil erosion. These measurements confirm the John Thornes� idea: matorral is an efficient vegetation cover protection on Mediterranean ecosystems.esentat
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    Postfire regeneration of a thermomediterranean shrubland area in south-eastern Spain
    (Murcia: Universidad de Murcia, Servicio de Publicaciones, 2003) Götzenberger, Lars; Ohl, Constanze; Hensen, Isabell; Sánchez Gómez, Pedro; Sin departamento asociado; Facultad de Biología
    Postfire regeneration of thermomediterranean shrublands burnt in 1998 was studied in the Province of Murcia (SE Spain). The vegetation struc ture of sites with different exposures was compared with that of adja cent unburnt areas. Three years after the fire, the mean vegetation cover of the burnt sites was still significantly lower than that of the non-burnt areas. However, the results of a Detrended Correspondence Analysis indicate that fires induce only minor changes in the species composi tion and the vegetation structure. Fire seems to be a common pheno menon, and the dominant species are characterized by pre-adaptatio ns to withstand fires. The most frequent pre-adaptation is the ability to resprout rapidly from subterranean parts, whereas the regeneration from seeds is clearly less important in the most dominant species.