Carbon Stock of Tree Species and its Biodiversity in
Community Forests of Dang, Nepal
Volume 4 - Issue 1
Anju Subedi1, Dipika Badal1, Ram Asheshwar Mandal2* and Bijay Kumar Yadab3
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- 1Kathmandu Forestry College, Kathmandu, Nepal
- 2School of Environmental Science and Management (SchEMS), Kathmandu, Nepal
- 3Institute of Forestry, Hetauda Tribhuvan University Nepal
*Corresponding author:
Ram Asheshwar Mandal, School of Environmental Science and Management (SchEMS), Kathmandu, Nepal
Received: August 28, 2020; Published: September 09, 2020
DOI: 10.32474/CDVS.2020.04.000179
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Abstract
Carbon stock and biodiversity have an intricate relationship. Despite the important relationship between these components
the studies related to it are very limited. Thus, this research was objectively conducted to estimate species wise carbon stock, soil
organic carbon and biodiversity. Three community forests namely Sungure, Goraksha and Baghkhor of Dang district were selected
for the study. Total 45 nested sample plots having 12.61m, 5.64m, 2.82m and 1.87m radius for tree, pole, sapling and seedling
respectively were established to collect the data. Additionally, 45 soil samples were collected from 0-10, 10-20 and 20-30 cm depth
from centre of the plot. The diameter and height and tree species were recorded. The biomass of each species was calculated
using equation Chave [1] and the value was converted into carbon. Soil carbon was analyzed using Wakley and Black method. The
biodiversity was estimated using Shannon Weinner and Simpson’s Diversity Index. Shorea robusta was the dominant species in
the community forests, thus the carbon stock was the highest around (mean±SE) 33.23±0.23, 28.15±0.25 and 20.61±0.65 ton/
ha in Baghkhor, Goraksha and Sungure community forests respectively. The carbon stock of Shorea robusta was 38.61 to 41.31%
which can suppress other species. One-way ANOVA and Tukey’s b test showed that the mean carbon stock of Shorea robusta in the
community forests was significantly differed at 95% confidence level. The highest contribution of carbon stock was of soil around
64.77 (57.52%) ton/ha in Baghkhor community forest. The soil carbon stock of Baghkhor community forest was 26.65, 21.55, 16.57
ton/ha at 0-10 cm, 10-20 cm, 20-30 cm respectively. The species richness was the highest 17 in Sungure community forest. The
Simpson index was 0.32, 0.34 and 0.34 in Sungure, Goraksha and Baghkhor community forests respectively while Shannon- Weiner
diversity index values were 1.31, 1.13 and 1.3 in the community forests respectively. The research will be useful to understand the
carbon stock and biodiversity in community forest.
Keywords: Carbon, volume, biodiversity, importance value index
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