[DOWNLOAD] "Vegetation Dynamics in the Tafileh Woodlands of Southern Jordan." by American Journal of Environmental Sciences ~ Book PDF Kindle ePub Free
eBook details
- Title: Vegetation Dynamics in the Tafileh Woodlands of Southern Jordan.
- Author : American Journal of Environmental Sciences
- Release Date : January 01, 2005
- Genre: Science & Nature,Books,
- Pages : * pages
- Size : 179 KB
Description
Abstract: Woodland vegetation in the Tafileh highlands of southern Jordan was investigated and quantitatively surveyed to determine the patterns of vegetation dynamics associated with altitude and topography. Three tree species (Juniperus phoenicea L. (evergreen needle-leaved woodland resistant to cold), Pistacia adantica Desf. and Quercus aegilps L. (cold-deciduos broad-leaved woodland) and five shrubs (Colutea istria Miller, Gomphocarpus sinaicus R. Br., Thymelaea hirsute (L.) Endl., Crataegus aroma (L.) Bosc.ex DC and Daphne linearifolia Hart.) dominate the woody vegetation in the investigated area. Lower altitudes of southwest facing slopes demonstrate generally the higher plant densities than the higher altitudes of northeast facing slopes. Species segregation occurs on the basis of community ecological importance value depending on altitudes, slopes and human impact factor through grazing activities, wood gathering especially on plateau sites. Regeneration consequently negatively affected due to continuous reduction in species diversity and tree size distribution. Key words: Woodland, Vegetation, Phytogeography, Importance Value, Regeneration