PJB-2020-1514
Tree ring studies from some conifers and present condition of forests of Shangla district of Khyber Pakhtunkhwa, Pakistan
Javed Iqbal, Moinuddin Ahmed, Muhammad Faheem Siddiqui and Adam Khan
Abstract
Dendroecological investigations were carried out for different sites of Shangla District, using 3 conifer tree species i.e. Pinus wallichiana, Abies pindrow and Cedrus deodara. Wood samples were subjected to dendrochronological processes, analyzed under microscope and measured on Velmax measuring system attached to a computer. Growth rate at every 10 years interval were determined and its variation in various dbh classes were investigated. The present findings showed that age and growth rate varies from species to species and site to site, even among the individuals of a single species growing in a same site. It was shown that growth rate decreased after 18th century. It was observed that small dbh tree was not necessarily younger than large dbh trees. Present study shows that age increases roughly with increasing tree size but also agreed with previously workers that dbh is not a good indicator of age in multisized and multiaged population
To Cite this article:
Iqbal, J., M. Ahmed, M.F. Siddiqui and A. Khan. 2020. Tree ring studies from some conifers and present condition of forests of Shangla district of Khyber Pakhtunkhwa, Pakistan. Pak. J. Bot., 52(2): DOI: http://dx.doi.org/10.30848/PJB2020-2(38)
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