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Computational Ecology and Software, 2022, 12(3): 167-180
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Article

Carbon stock variation along environmental gradient of Wacho Forest, South-Western Ethiopia

Gezahegn Gashu1, Gebre Gidey2, Zame Fekansa2
1Department of Natural Resource Management, College of Agriculture and Environmental Science, University of Gondar, Gondar, Ethiopia
2Department of Natural Resource Management, College of Agriculture and Veterinary Medicine, Dambi Dollo University, Dembi Dollo, Ethiopia

Received 12 May 2022;Accepted 20 June 2022;Published online 19 June 2022;Published 1 September 2022
IAEES

Abstract
The carbon stock of forest is disturbed by environmental variables. Therefore, the study was undertaken to examine the variation of carbon sock along environmental gradient of wacho forest, South-Western Ethiopia. A systematic random sampling technique was employed to collect the data from 20 m ¡Á 20 m of 73 sample quadrants. Trees and shrubs having ¡Ý 5 cm diameter at breast height were collected from 20 m ¡Á 20 m, whereas litter and soil samples were collected from each of the five 1 m ¡Á 1 m subplots situated at the four corners and one at the midpoint of the main plot. The carbon stock of trees, shrubs, litter, and soil was determined by using different equations. One-way analysis of variance was used to analyze the variation of carbon stock along environmental gradient of wacho forest, while descriptive statistics were used to estimate the maximum, minimum, mean and standard deviations of carbon stock in the study forest. An altitudinal gradient had a statistically significant effect on dead tree and dead wood carbon, litter carbon, and soil organic carbon. The carbon pools of above-ground carbon, below-ground carbon, dead tree and dead wood carbon, and soil organic carbon were statistically varied with slope gradient. Aspect had a statistically significant effect on the above-ground and below-ground carbon stocks, dead tree and dead wood carbon, litter, and soil organic carbon stock.

Keywords Wacho forest;Ethiopia;environmental gradient;carbon stock.


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