Nutrient Dynamics in the Floodplain Wetlands of West Bengal
Nutrient Dynamics in the Floodplain Wetlands of West Bengal
Date
2004
Authors
Das, A.K
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologists (India)Cochin
Abstract
The results of the study on the nutrient dynamics of eleven floodplain wetlands (beels)
in West Bengal are reported. In the beels of Dinajpur phosphorus has become a limiting factor
for production due to acidic soil (pH 5.6-5.9}. Total nitrogen was significantly high in most
of the beels especially during monsoon and post-monsoon months. Majority of the beels were
infested with macrophytes in the littoral zones. A significantly high concentration of essential
nutrients was recorded in the weed infested littoral areas while they were less in the weedfree
limnetic zones. The C/N ratio was recorded in the production range (5-13) in many
of the beels except in weed-chocked Nehali beel where the ratio was extremely high (39-55)
owing to the accumulation of undecomposed organic matters at the bottom.
Description
Keywords
Beels, limno-chemistry, nutrients, macrophyte, productivity
Citation
Fishery Techn 41(2):81-86