Article Sidebar
Article Details
Issue
Section
Articles
Submission of a paper for publication implies the transfer of the copyright from the author(s) to the publisher upon acceptance. International Formulae Group is therefore the copyright holder after publication of an article in International Journal of Biological and Chemical Sciences, and published articles should not be used for commercial purpose without the written consent of the Editor-in-Chief. They are licensed under a Creative Commons Attribution-Non Commercial-Share Alike 4.0 International License.
Main Article Content
Seasonal physicochemical variation in the Nabugabo wetland
Abstract
The study determined physicochemical characteristics of Lake Nabugabo wetland during a wet and a dry season to evaluate season variation in water quality. Standard (APHA 1992) and HACH methods were
used to determine the physicochemical parameters for a period of one seasonal cycle. Results were pH 3.8 (3.0-4.2); temperature 23.0 (19.4 – 26.4) 0C; conductivity 20.5(15.6-30.45) ìScm-1; total dissolved solids 11.4
(4.1-14.2) mgl-1;dissolved oxygen 3.9(0.0 -5.3) mgl-1; Ca++ 3.0 (0.2-4.3) mgl-1; Mg++ 2.1(0.06-2.5) mgl-1; K+ 0.9 (0.8-1.1) mgl-1; Na+ 2.9 (2.1-3.2) mgl-1; total phosphorus 0.3 (0.07-1.3) mgl-1; soluble reactive phosphate 0.002 (0.004-0.06) mgl-1; total nitrogen 0.8 (0.5-1.8) mgl-1; nitrate-nitrogen 0.01(0.001-0.12) mgl-1; ammonianitrogen
0.46 (0.1-2.2) mgl-1. Nitrate-nitrogen and dissolved oxygen varied significantly (P<0.05), while phosphorus variation was weak (P=0.2) and both were higher during the rainy season. Temperature, pH,
conductivity and the cations exhibited non-significant (P>0.05) variation with season. The wetland hydroperiods were 0.83 north of Lake Nabugabo and 0.58 south of the Lake. Seasonal variations of nitrogen
and phosphorus concentrations were strongly linked to rainfall and hydroperiods. The study showed that the wetland water quality varies with season which is important for designing temporal sampling strategy and the understanding of wetland influence on adjacent open water bodies.
used to determine the physicochemical parameters for a period of one seasonal cycle. Results were pH 3.8 (3.0-4.2); temperature 23.0 (19.4 – 26.4) 0C; conductivity 20.5(15.6-30.45) ìScm-1; total dissolved solids 11.4
(4.1-14.2) mgl-1;dissolved oxygen 3.9(0.0 -5.3) mgl-1; Ca++ 3.0 (0.2-4.3) mgl-1; Mg++ 2.1(0.06-2.5) mgl-1; K+ 0.9 (0.8-1.1) mgl-1; Na+ 2.9 (2.1-3.2) mgl-1; total phosphorus 0.3 (0.07-1.3) mgl-1; soluble reactive phosphate 0.002 (0.004-0.06) mgl-1; total nitrogen 0.8 (0.5-1.8) mgl-1; nitrate-nitrogen 0.01(0.001-0.12) mgl-1; ammonianitrogen
0.46 (0.1-2.2) mgl-1. Nitrate-nitrogen and dissolved oxygen varied significantly (P<0.05), while phosphorus variation was weak (P=0.2) and both were higher during the rainy season. Temperature, pH,
conductivity and the cations exhibited non-significant (P>0.05) variation with season. The wetland hydroperiods were 0.83 north of Lake Nabugabo and 0.58 south of the Lake. Seasonal variations of nitrogen
and phosphorus concentrations were strongly linked to rainfall and hydroperiods. The study showed that the wetland water quality varies with season which is important for designing temporal sampling strategy and the understanding of wetland influence on adjacent open water bodies.
