Chemical composition of leaves of a mangrove tree (<i>Sonneratia apetala</i> Buch.-Ham.) and their correlation with some soil variables

Authors

  • Ashafaque Ahmed Department of Ecology and Natural Resource Management, Norwegian University of Life Sciences, Ås
  • Mikael Ohlson Department of Ecology and Natural Resource Management, Norwegian University of Life Sciences, Ås
  • Sirajul Hoque Department of Soil, Water and Environment, University of Dhaka
  • Md Golam Moula Plantation Trial Unit Division, Bangladesh Forest Research Institute, Rupatoli, Barisal

DOI:

https://doi.org/10.3329/bjb.v39i1.5528

Keywords:

Coastal zone, tidal inundation, elemental concentration, Sonneratia apetala

Abstract

Chemical composition of leaves of Sonneratia apetala Buch.-Ham. collected from three islands (chars) representing three hydrological regimes in a segment of the coastal zone of Bangladesh was studied. Their relations to some soil chemical and physical variables have also been investigated. The results showed that concentrations of B, C, Fe, Ga, Li, Mg, Mn, N, Na, P, Zn and Sr in leaves of S. apetala grown in different islands differed significantly. It was also revealed that some heavy metals, viz. Mn, Fe, Al, Sr and Ti showed wide range of concentrations. The leaves from one of the locations in Motherbunia island were characterized by exceptional high concentrations of heavy metals such as Al, As, Cu, Fe, Li, Ni, Pb that may be due to local contamination. Leaves sampled in the most seaward locations of the same island had highest concentrations of Ba, Ca, Cu, Mn and Na. High Mn concentration was found in the leaves of S. apetala of Motherbunia island. Correlations among soil and plant samples were generally very weak and organic matter content of soil did not appear to play a significant role in the nutrient supply of S. apetala.

Key words: Coastal zone; tidal inundation; elemental concentration; Sonneratia apetala

DOI: 10.3329/bjb.v39i1.5528

Bangladesh J. Bot. 39(1): 61-69, 2010 (June)

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Author Biography

Ashafaque Ahmed, Department of Ecology and Natural Resource Management, Norwegian University of Life Sciences, Ås

Present address: Ecology and Environment Laboratory, Department of Botany, University of Dhaka, Dhaka

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How to Cite

Ahmed, A., Ohlson, M., Hoque, S., & Moula, M. G. (2010). Chemical composition of leaves of a mangrove tree (<i>Sonneratia apetala</i> Buch.-Ham.) and their correlation with some soil variables. Bangladesh Journal of Botany, 39(1), 61–69. https://doi.org/10.3329/bjb.v39i1.5528

Issue

Vol. 39 No. 1 (2010)

Section

Articles

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© Bangladesh Botanical Society

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