Tree Diversity and Ecosystem Carbon Stock Assessment in Nambor Wildlife Sanctuary, Assam
- 21 Downloads
A study was carried out to assess tree diversity, forest carbon stock and carbon dioxide (CO2) sequestration in Nambor tropical semi-evergreen forest. A total of 53 tree species from 47 genera and 32 families were recorded in the forest. Vatica lanceifolia was the dominant tree species with maximum 33.78 importance value index (IVI), 0.30 Shannon diversity index (H′) and 0.03 Simpson’s index (D) followed by Lagerstroemia reginae (20.75 IVI, 0.18 H′ and 0.004 D), Dysoxylum excelsum (17.70 IVI, 0.20 H′ and 0.006 D), Sterculia villosa (14.15 IVI, 0.09 H′ and 0.0007 D) and Toona ciliata (11.60 IVI, 0.07 H′ and 0.0004 D) as codominant species. Among the forest carbon pools, maximum 50.32% carbon was stored in soil followed by 39.42% in above ground biomass and 10.21, 0.03 and 0.02% in below ground, leaf litter and dead debris pools, respectively. Total ecosystem carbon stock in Nambor forest was estimated to be 244.78 Mg ha−1. The estimated carbon stock was extrapolated over 3700 hectare area and found to be 905186.50 Mg. The total forest carbon stock was also converted into CO2 equivalents and estimated as 3,322,034.46 Mg. The study observed that forest ecosystem offsets significant amount of atmospheric CO2; therefore, conservation and management of forest resources are imperative to combat global climate change.
KeywordsNambor Wildlife Sanctuary Forest carbon pools CO2 offsetting Climate change mitigation
This study was funded by the Indian Council of Forestry Research and Education, Dehradun, under National Forestry Research Programme, Grant number No. RFRI/2013-14/SCD-08. The authors are thankful to the Department of Environment and Forests, Govt. of Assam, for granting permission to carry out the research work. All the necessary facilities provided by the Director, Rain Forest Research Institute, Jorhat, Assam, are gratefully acknowledged. The authors are also grateful to anonymous reviewer for providing valuable suggestions to improve the overall quality and readability of the manuscript.
Compliance with Ethical Standards
Conflict of interest
The authors declare no conflict of interest to publish this manuscript.
- 2.https://www.climate.gov/news-features/understanding-climate/climate-change-global-temperature. Accessed on 5 July, 2018
- 4.Birdsey RA, Heath LS (2001) Forest inventory data, models and assumption for monitoring carbon flux. Soil carbon sequestration and the greenhouse effects. SSSA special publication no 57. Soil Science Society of America, Madison, WIGoogle Scholar
- 10.Rabha D, Borah N, Das AK (2014) Assessment of aboveground and soil organic carbon stocks in Dipterocarpus forests of Barak Valley, Assam, Northeast India. Int J Ecol Environ Sci 40(1):29–40Google Scholar
- 11.ISFR (2011) India state of forest report, Forest Survey of India, Dehradun, Ministry of Environment and Forests, Government of IndiaGoogle Scholar
- 12.IPCC Good practice guidance for land use, land-use change and forestry (2006)Google Scholar
- 15.FSI (1996) Volume equations for forests of India, Nepal and Bhutan. Forest Survey of India, Dehradun, Ministry of Environment and Forests, Govt. of India. pp. 249Google Scholar
- 16.Zanne AE, Lopez-Gonzalez G, Coomes DA, Ilic J, Jansen S, Lewis SL, Miller RB, Swenson NG, Wiemann M, Chave J (2009) Global wood density database. https://doi.org/10.5061/dryad.234/1
- 21.Kumar KS, Benjongwapang A, Khanduri VP, Gautam PK, Singh D, Singh SK (2013) Assessment of soil nutrients (N, P, and K) status along with tree diversity in different land use systems at Mokokchung, Nagaland, India. Sci Technol J 1(2):42–48Google Scholar
- 22.Ramachandran A, Jayakumar S, Haroon RM, Bhaskaran A, Arockiasamy DI (2007) Carbon sequestration: estimation of carbon stock in natural forests using geospatial technology in the Eastern Ghats of Tamil Nadu, India. Curr Sci 92(3):323–331Google Scholar
- 25.Borah N, Nath AJ, Das AK (2013) Above ground biomass and carbon stocks of tree species in tropical forests of Cachar district, Assam, Northeast India. Int J Ecol Environ Sci 39(2):97–106Google Scholar
- 26.Thokchom A, Yadava PS (2013) Biomass and carbon stock assessment in the sub-tropical forests of Manipur, North East India. Int J Ecol Environ Sci 39(2):107–113Google Scholar
- 27.Devagiri GM, Money S, Singh S, Dadhwal VK, Patil P, Khaple A, Devakumr AS, Hubballi S (2013) Assessment of above ground biomass and carbon pool in different vegetation types of south western part of Karnataka, India using spectral modelling. Trop Ecol 54(2):49–165Google Scholar
- 29.Bhattacharyya T, Pal DK, Mandal C, Velayutham M (2000) Organic carbon stock in Indian soils and their geographical distribution. Cur Sci 79(5):655–660Google Scholar
- 30.Singh OP, Datta B (1983) Characteristics of some hill soils of Mizoram in relation to altitude. J Ind Soc Soil Sci 31:657–667Google Scholar