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Diversity, phenology and biological spectrum of tree flora in upper Tanawal, district Mansehra, KP, Pakistan

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Farooq M., Anjum W., Hussain M., Saqib Z., Shah A. H., Khan K. R., Nazir J., Gul S.
World News of Natural Sciences
|
2018
|
vol. 16
86-96
EN
Upper Tanawallies is in the middle of the Western part of Hazara division, and includes the remote areas of four districts i.e. Mansehra, Abbottabad, Haripur and Tor-Ghar, having latitude 34°.34.40´ N to 34°.48.88´ N and 72°.84.27´ E to 73°.10.50´ E longitude. This area is loaded with plant diversity, and tree species in this area vary in their life form, leaf spectra and phenological behavior. There is no prior record of plants diversity in the area, hence, this study was conducted to explore the tree diversity, life form, leaf spectrum and phenology of the tree flora. A total 127 sampling stands (10 x 10 m2) were put into place in different locations in Upper Tanawallies to collect field data using the quadrat method. As an outcome, we learned that the region hosts 53 different tree species of 39 genera belonging to 25 tree families. The biological spectra of the trees were constructed according to Raunkiaer (1934). Results showed that Mesophanerophytes was the dominant life form class, contributing 34 (64%) of all tree species encountered, while Mesophyll and Microphyll was the dominant leaf size spectrum classes, each contributing to a count of 18 (34%) of all tree species. Frequent field visits were also carried out during the flowering and fruiting seasons in 2016/17. The result indicates that most tree species of the area show flowering during April-May (32%) while, maximum fruiting were recorded in June-July (36%). Our study concludes that anthropogenic activities on these forests should be reduced to overcome deforestation. This work will be the baseline for new research in the study area.
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