Development of allometric equation for biomass estimation of Cedrus deodara in dry temperate forests of Northern Pakistan
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2016, Vol 9, Issue 2
Abstract
The accuracy of biomass estimates depends on the availability of reliable allometric models to infer biomass of trees from forest inventory data. The current study was undertaken to develop local allomteric equation and biomass expansion factor for Cedrus deodara. Data was collected from 32 sample trees which were felled and measured for the study in natural dry temperate forests of Gilgit-Baltistan, Pakistan. Diameter at Breast Height (DBH) and total height of the sample tree were measured before felling. After felling, bole, branches and brushwood were separated and weighed on the spot. Samples were taken from bole, branches and brushwood for drying in the oven at 1050 C till they gained constant weight. The allometric equation was developed through logarithmic transformation of dependent and independent variables. Results showed good relationship between biomass as dependent variable and DBH and height as independent variables. The R2 was found to be 0.98. The F and P values show that the model is significant. Standard Error and sum of square (SS) of the residuals also indicate good fit of the model. The BEF for Cedrus deodara varied between 1.17 and 2.07 with a mean of 1.37±0.039 for trees with DBH>20 cm. The percentage contribution of bole, branches and brushwood in the total dry biomass of Cedrus deodara was found to be 72.95%, 10.43% and 16.62% respectively. Basic wood density or specific gravity was calculated as 0.46 g/cm3. The study recommends development of similar allometric equation for biomass estimation of the species in moist temperate forests of Pakistan where climatic conditions are different from the study area.
Authors and Affiliations
Anwar Ali, Muhammad Iftikhar, Sajjad Ahmad, Sultan Muhammad, Ayaz Khan
Keywords
Related Articles
- EP ID EP38901
- DOI -
- Views 135
- Downloads 0
Phytosociological attributes of a tropical dry deciduous forest of Bundelkhand region of Uttar Pradesh, India
The present investigation reflects the findings of phytosociological attributes which have been undertaken in the forests of Mahoba district of Bundelkhand region of Uttar Pradesh, India. The vegetation types of distric...
Comparative analysis of physicochemical parameters and Bioaccumulation between Musa species
Banana plant plays a significant role in the north-eastern population of India. The plant can be truly called a kalpvriksh since all parts of this plant have been used by the people in Assam since ancient time. The plan...
Taxonomic study of the family Scoliidae (Hymenoptera; Aculeata) in Iraq
In this study, 117 specimens of the hairy wasps (Hymenoptera: Scoliidae), collected from different region of Iraq are investigated. Five species belonging to three genera were determined; this species are: Campsomeriella...
Removal of Ni(II), Cd(II) and Cr(III) from industrial wastewater by raw and modified cotton stalk
Waste cotton stalk (CS) and surfactant modified CS (SMCS) biosorbents were evaluated for their ability to remove Ni(II), Cd(II), and Cr(III) ions from wastewater. Sodium dodecyl sulfate (SDS), a commonly used surfactant...
Toxicity levels, Ecological risk assessment of Heavy metals and distribution in the surface sediment of Hub River, Hub River estuary and Gadani coast, Baluchistan, Pakistan
Fourteen sediment samples were collected from three sites (Hub River, Hub River estuary and Gadani coast) for examining the concentrations and toxicity levels of heavy metals (Cadmium, Chromium, Copper Lead, Cadmium, Zin...