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Phosphorus fractions in the sediment of a tropical reservoir, India: Implications for pollution source identification and eutrophication

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Title Phosphorus fractions in the sediment of a tropical reservoir, India: Implications for pollution source identification and eutrophication
Not Available
 
Creator Ajoy Saha
P. K. Jesna
V. L. Ramya
S. Sibina Mol
Preetha Panikkar
M. E. Vijaykumar
U. K. Sarkar
B. K. Das
 
Subject P speciation
Bio-available P
Reservoir sediment
Eutrophication
Ecological risk
 
Description Not Available
Eutrophication level in lakes and reservoirs
depends on both internal and external phosphorus
(P) load. Characterization of sediment P
fractionation and identifying the P pollution sources
are important for assessing the bio - availability of P
and the dominant P source, for effectively controlling
the water pollution. For determining the availability
and sources of sediment P and eutrophication status,
spatio - temporal variation in different P fractionation
of sediment of hyper - eutrophic Krishnagiri reservoir,
Tamil Nadu, India, was investigated. Sediment average
total P (TP) content ranged from 4.62 to 5.64 g/kg.
Main phosphorus form was the inorganic P (IP), and it
makes up to 73.4–87.7% of TP. Among the different P
fraction, viz. calcium bound (Ca - P), iron bound (Fe–
P), aluminium bound (Al - P), exchangeable (Ex - P) and
Organic - P (Org - P), Ca - P was the dominating fraction
in both IP and TP. Trend of IP fraction was as follows:
Ca - P[Fe–P][Al - P][Ex - P] in pre - monsoon season,
Fe–P[Ca - P][Al - P][Ex - P] in monsoon and Ca -
P[Al - P][Fe–P][Ex - P] in post - monsoon. Overall the trend was as follows Ca - P[Fe–P][Al - P][Org -
P][Ex - P]. Bio - available - P (BAP) fractions ranged
from 35.2 to 64.0% of TP, indicating its comparative
higher value. Pearson’s correlation matrix revealed
that there was strong correlation among the different P
fractions. Factor analysis indicates that different
fractions of P were the dominating factor than the
other sediment parameters. The observed variation in
sediment P fractionation indicate the differences in
source and characterization of P which is very helpful
for implementation of effective management practices
in controlling pollution that arises due to phosphorus
in this hyper - eutrophic reservoir.
Not Available
 
Date 2021-08-11T06:30:14Z
2021-08-11T06:30:14Z
2021-05-29
 
Type Research Paper
 
Identifier Saha, A., Jesna, P. K., Ramya, V. L., Mol, S. S., Panikkar, P., Vijaykumar, M. E., ... & Das, B. K. (2021). Phosphorus fractions in the sediment of a tropical reservoir, India: Implications for pollution source identification and eutrophication. Environmental Geochemistry and Health, 1-21.Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/54638
 
Language English
 
Relation Not Available;
 
Publisher Springer