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Patterns of woody plant species diversity in lebanon as affected by climatic and soil properties
Lebanese Science Journal. 2007; 8 (2): 21-44
in English | IMEMR | ID: emr-139157
ABSTRACT
Lebanese biodiversity is threatened by tourist and urban development, political instability, over-collection of medicinal and aromatic plants, lack of compliance to the regulations prohibiting over-exploitation from the wild, over-grazing and forest fires. A large number of the native species have unexplored economic potential for either medicinal or ornamental use. One way to preserve these species is by propagation and reintroduction into appropriate habitats. However, this requires an understanding of the species biology and environment. The relationship of nine species to the soil and climatic conditions in eight sites along an altitudinal gradient was studied. Individual species were counted and identified within transects at each site. Climatic data were collected and soil samples were taken and analyzed for soil texture, soil pH, EC, CaCOs, organic matter content and the following nutrients Ca, Mn, Na, Fe, P, K, Cu, Mg, and Zn. Each ecosystem had a unique environment that could be described using the first two factors [70.3% of variation] in a Factor Analysis of the six most important variables. Some species' densities were affected by soil conditions [the first factor] while climatic conditions [the second factor] explained the densities of other species. Recommendations are made for the in-situ and ex-situ preservations of the nine species and their ecosystems
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Index: IMEMR (Eastern Mediterranean) Language: English Journal: Lebanese Sci. J. Year: 2007

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Index: IMEMR (Eastern Mediterranean) Language: English Journal: Lebanese Sci. J. Year: 2007