Size Structure and Dynamics of Thymus Capitatus in Different Habitats in Southern Al-Jabal Al-Akhdar, Libya
DOI:
https://doi.org/10.63359/32w22009Keywords:
Thymus plant, Size Structure, Dynamic, southern Al-Jabal Al- Akhdar; Libya.Abstract
The size structure of wild thyme growth in the southern parts of the Al-Jabal Al-Akhdar region, Soil samples were collected from the surface of each site, and were more or less positively correlated with silt, clay, chloride, calcium, fine sand, and carbonate. On the other hand, they were negatively correlated with nitrogen and potassium. The number of individuals of species was counted while the height (H) and mean crown diameter (D) were measured. Generally, the height to diameter ratio was less than unity for Thymus capitatus, this means that the diameter of these species tend to expand horizontally rather than vertically, The size index of each individual was calculated and then used to classify population into 7 size classes: 1 cm size 7 cm .Five forms of size distribution along the different elevations were recognized, it was found that Thymus capitatus exhibited more or less J-shaped distribution and along elevation levels (High and Low).Thymus capitatus exhibited more or less symmetrical distribution (bell-shaped) along the elevation level (Medium). The negative skewed distribution of Thymus capitatus indicated the dominance of mature individuals over the juvenile ones.
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