ECOLOGICAL CONDITIONS OF A TEMPORARY WETLAND IN BANGLADESH

Authors

  • A. K.M. Nazrul-Islam Ecology and Environment Laboratory, Department of Botany University of Dhaka, Dhaka
  • Fahmida Khan Ecology and Environment Laboratory, Department of Botany University of Dhaka, Dhaka
  • Ambia Khatun Ecology and Environment Laboratory, Department of Botany University of Dhaka, Dhaka
  • M. R. Khan Ecology and Environment Laboratory, Department of Botany University of Dhaka, Dhaka
  • A. N.M. Abdullah Ecology and Environment Laboratory, Department of Botany University of Dhaka, Dhaka
  • P. K. Jha Central Department of Botany Tribhuvan University, Kirtipur, Kathmandu

DOI:

https://doi.org/10.3126/eco.v18i0.9413

Keywords:

Wetland, Vegetation, Chemical properties, Bangladesh

Abstract

 Investigation has been done to gain evidence on certain chemical properties of water and vegetation in area representative of the various wetland habitats which go under water during rainy season. The measurements were done with edaphic condition, water chemistry, and floristic composition. Water was neutral to alkaline and pH varied from 6.97 to 7.20 and conductivity was in the range of 97.5 m mhos to 240 m mhos. Seasonal variation of chloride content was observed throughout the year and the highest chloride (104.96 mg/l) was in the month of October. Dissolved oxygen concentration was very low (2.99 mg/l) in the month of October. With the decrease of water, the value of alkalinity became double (76.0 mg/). No distinct variation in the content of hardness was observed in the three different locations. Temporary hardness varied from 0.1 0 to 0.56 mg/l. High value of total solids in the month of July (70 mg/l) indicated that high amount of sediment are coming with the flow of water from upstream. Total suspended solids were higher than dissolved solids. Exchangeable cations were low in the beginning and an increasing tendency of Na and Ca was observed in the later stages of marsh formation.

DOI: http://dx.doi.org/10.3126/eco.v18i0.9413

Ecoprint: An International Journal of Ecology

Vol. 18, 2011

Page: 71-76

Uploaded date: 12/22/2013

 

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Published

2013-12-21

How to Cite

Nazrul-Islam, A. K., Khan, F., Khatun, A., Khan, M. R., Abdullah, A. N., & Jha, P. K. (2013). ECOLOGICAL CONDITIONS OF A TEMPORARY WETLAND IN BANGLADESH. Ecoprint: An International Journal of Ecology, 18, 71–76. https://doi.org/10.3126/eco.v18i0.9413

Issue

Vol. 18 (2011)

Section

Articles

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