Nutrient Mobility in Chalakudy River,Typified With Riparian Buffer Zone and Its Adjoining Estuary:Spatiotemporal Manifestation

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Nutrient Mobility in Chalakudy River,Typified With Riparian Buffer Zone and Its Adjoining Estuary:Spatiotemporal Manifestation

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dc.contributor.author Padma, P
dc.contributor.author Dr. Muraleedharan Nair, S
dc.date.accessioned 2012-08-02T06:49:23Z
dc.date.available 2012-08-02T06:49:23Z
dc.date.issued 2008-10
dc.identifier.uri http://dyuthi.cusat.ac.in/purl/2991
dc.description Dept.of Chemical Oceanography,Cochin University of Science and Technology. en_US
dc.description.abstract This study was aimed at to characterize the spatio-temporal trends in the distributional characteristics of various species of nitrogen and phosphorus as well as to elucidate the factors and processes aflecting these nutrients in the dissolved, particulate and sedimentary phases of a river estuarine system. The main area of study is Chalakudy river in Kerala, which is a fresh water system originating from Anamalai hills and ending at Arabian Sea. Its basin is between I00 05 ’ to I00 35’ North latitude and 76” 15 ’ to 760 55’ East longitude. Being a riparian bufler zone, the dynamics of nutrient mobility tend to be more complex and variable in this river-estuarine system.The diflerent species of nitrogen estimated from the filtrate were nitrite-N, nitrateN, ammonia-N, urea-N, total nitrogen and residual nitrogen. The diflerent forms of phosphorus estimated from the filtrate were phosphate-P, total-P and residualP. Pre weighed sediments as well as particulate matter were analysed for quantijying nitrite-N, nitrate-N, ammonia-N and urea-N. Total nitrogen was estimated after digestion with potassium persulfate. Fractionation of phosphorus in sediment/particulate matter was performed by applying sequential extraction procedure. The dijferent forms of phosphorus thus estimated were loosely bound (exchangeable) P, Fe/Al bound P, polyphosphates, Ca bound P and refractory P. Sedimental total P was also measured directly by applying digestion method.The analyses carried out in this bimonthly annual survey have revealed specific information on the latent factors influencing the water quality pattern ofthe river. There was dependence among the chemical components of the river sediment and suspended matter, reflecting the water quality. A period of profound environmental change occurred and changes in various species had been noted in association with seasonal variations in the waterway, especially following enhanced river runoff during the monsoon. The results also successfully represented the distribution trend of nutrients during the rainy as well as dry season. Thus, the information gathered in this work will also be beneficial for those interested or involved in river management, conservation, regulation and policy making in regional and national levels. en_US
dc.language.iso en en_US
dc.publisher Cochin University of Science & Technology en_US
dc.subject Nutrients en_US
dc.subject Fresh water en_US
dc.subject Estuary en_US
dc.subject Dissolved Nitrogen en_US
dc.subject Dissolved Phosphorus en_US
dc.subject Sedimented Nitrogen en_US
dc.subject Sedimented Phosphorus en_US
dc.subject Riparian Buffer Zone en_US
dc.subject Integrated GIS Water Quality Model en_US
dc.subject Spatio-temporal variability en_US
dc.subject Chalakudy river en_US
dc.subject Chemical Oceanography en_US
dc.title Nutrient Mobility in Chalakudy River,Typified With Riparian Buffer Zone and Its Adjoining Estuary:Spatiotemporal Manifestation en_US
dc.type Thesis en_US


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