Abstract
Year of Publication 2012
Leaf litters of bamboos are the potential source of
nutrient input in the village land use systems. Bamboo grove is one such land
use where bamboos are managed either in pure or in mixed patches with other
plant species. Present study was carried out in a bamboo grove of Cachar
district of Barak Valley, Assam to understand the flux of different fractions
of litter fall, litter standing crop, turnover rate, turnover time for
different litter components and nutrient use efficiency of the bamboo species.
Litter fall was studied by laying permanent litter traps followed by collection
of litter fractions at monthly interval over a period of three year. Mean
litter fall of the stand was 7514.28 kg ha-1yr-1. The
contribution of leaf, sheath and branch litter in total litter fall was in the
order of 55-65%, 29-38% and 5-7% respectively. Linear relationship between
Aridity Index and litter fall data exhibited the existence of negative
relationship between leaf fall, sheath fall and total litter fall. Leaf litters
had the higher turnover rate (0.56-0.58) and lower turnover time (1.72-1.75)
than sheath and branch litter. In leaf litter turnover rate for k was higher (0.61-0.67) than P
(0.53-0.56) and N (0.54-0.55). P exhibits higher nutrient use efficiency than N
and K. Role of bamboo litter as potential nutrient source in village landscape
is discussed.
Key Words: Bamboo grove, nutrient use efficiency,
turnover rate, turn over time
Authors: Arun Jyoti Nath and Ashesh Kumar Das
Journal Name
and Issue: International Journal of Ecology and Environmental Sciences 38(1):1-8.
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