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VOL. 8, ISSUE 6 (2022)
Dry Above-Ground biomass dynamics of grasslands in Laokhowa and Burhachapori Wildlife Sanctuaries, Assam: A comparative assessment between 2019 and 2021
Authors
Dr. Smarajit Ojah
Abstract
The grasslands of the Brahmaputra floodplain are among the most
productive ecosystems in South Asia, supporting diverse herbivore communities
and maintaining ecological resilience through annual monsoon-driven
disturbances. This study examines seasonal and inter-annual variations in dry
above-ground biomass of tall and short grasslands in Laokhowa and Burhachapori
Wildlife Sanctuaries (LBWLS) during pre-monsoon and post-monsoon seasons of
2019 and 2021. Using quadrat-based biomass measurements in conjunction with
land-use and land-cover (LULC) assessments, this research identifies clear
seasonal trends influenced by rainfall patterns, hydrological fluctuations, and
vegetation phenology. Biomass minima consistently occurred during the dry
pre-monsoon period, whereas maxima coincided with late monsoon and early
post-monsoon months. Tall grasslands exhibited significantly higher biomass in
2021 compared to 2019, while short grasslands showed a decline over the same
period. Overall biomass availability increased slightly due to the expansion of
tall grassland area and favourable hydrological conditions. These findings
align with ecological patterns observed across the Eastern Himalayan
floodplains and highlight the importance of long-term monitoring for effective
habitat management. The study underscores the need for adaptive management
interventions to maintain grassland heterogeneity essential for species such as
Rhinoceros unicornis, Bubalus arnee, and Axis porcinus.
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Pages:188-193
How to cite this article:
Dr. Smarajit Ojah "Dry Above-Ground biomass dynamics of grasslands in Laokhowa and Burhachapori Wildlife Sanctuaries, Assam: A comparative assessment between 2019 and 2021". International Journal of Humanities and Social Science Research, Vol 8, Issue 6, 2022, Pages 188-193
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