Analysis of Soil Parameters Causing Dieback in Sundarbans
American Journal of Environmental Protection
Volume 3, Issue 3, June 2014, Pages: 162-171
Received: Jun. 16, 2014; Accepted: Jun. 30, 2014; Published: Jul. 10, 2014
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Awal, Mohd Abdul, Founder & Chief Advisor, Health & Pollution Research Farm, 23-09-37 Avenue, Apt, No: 1, Long Island City, New York, USA
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A Sundarbans mangrove in Bangladesh is facing tremendous problems of heavy metal contaminations in soil (Awal, 20014). The present work has explored some of the possible parameters involved, focussing particularly on the relationship between the amount of top-dying in different places and the concentrations of a number of chemical parameters present in the soil, in order to test the hypothesis that chemical pollution might be responsible (Awal, 2014). Other factors such as the pH, salinity and nutrient status were also assessed (Awal 2014). Nine plots were selected for sampling of soil in order to categorise different areas in terms of their intensity of top-dying (Awal 2007). 63 soil samples were tested, mainly by ICPMS, to investigate certain parameters of the soil such as Sn, Exchangeable K, Soil pH, Pb, Zn, Ni, EC, soil nutrients, soil moisture content, and elemental concentrations of 32 other elements (Awal 2009). The vegetation structure was assessed in terms of tree height, bole diameter, species present, and regeneration status; and the intensity of top-dying within the plots was recorded on a rank scale. Most of the elements studied had no significant correlation with the top dying of Heritiera fomes. However, Sn, Exchangeable K, and soil pH were significantly related, and three elements, namely Pb, Zn, Ni, were also close to significance (Awal, 2007). Sn concentration is negatively associated with top dying. Soil pH varied significantly in the different plots (Awal 2007). Exchangeable K was positively associated with the tree diameter whether the top dying was severe or mild (Awal 2007). However, the present results have showed that Sn, Exchangeable K, soil pH, Pb , Zn and Ni could be directly linked with top-dying of Heritiera fomes (Sundri) in Sundarbans, probably particularly by weakening the vigour of the trees and allowing other parameters such as pathological agents to attack the plants (Awal, 2007).
Environmental Parameters, Environmental Factors, Causal Parameters, Soil Parameters, Heritiera fomes, Heavy Metal Concentrations in Soil of Sundarbans, Dieback of Sundarbans, Sundarbans, Top-dying
To cite this article
Awal, Mohd Abdul, Analysis of Soil Parameters Causing Dieback in Sundarbans, American Journal of Environmental Protection. Vol. 3, No. 3, 2014, pp. 162-171. doi: 10.11648/j.ajep.20140303.18
Awal, M.A. (2007). Analysis of possible environmental factors causing top-dying in mangrove forest trees in the Sundarbans in Bangladesh. PhD thesis, University of Bradford.
Awal, M.A., Hale, W.H.G. & Stern, B. (2009). Trace element concentrations in mangrove sediments in the Sundarbans, Bangladesh. Marine Pollution Bulletin, 58(12), 1944-1948.
Awal, M.A. (2014). “Correlation between the chemical composition of the surface sediment and water in the mangrove forest of the Sundarbans, Bangladesh, and the regeneration, growth and dieback of the forest trees and people health”..Journal of Science Innovation; 2014. 2(2): pp.11-21.Science Publishing Group, USA; May 20th, 2014(2):11-21;doi: 10.11648/j/si.20140202.11.
Anonymous, 1975. Under-exploited tropical plants with promising economic value. National Academy of Sciences, Washington.
BFRI, 1990-95. Annual Research Report. Silviculture Genetics Division. Bangladesh Forest Research Institute (BFRI), Chittagong, Bangladesh.
Bhuyan, A. A. 1994. Draft final report of the soil scientist. FAO / UNDP Project–Integrated Resource development of the Sundarbans Reserved Forest, Khulna, Bangladesh, 124 pp.
Burns, K.A; S. D. Garrity, and S.C. Levings. 1993. How many years until mangrove ecosystems recover from catastrophic spills? Marine Pollution Bulletin 26 (5): 239-248.
Chaffey, D. R; Miller, F.R; Sandom, J. H. 1985. A forest inventory of the Sundarbans, Bangladesh, Main report, Project Report No.140, 196 pp; Overseas Development Administration, London, U.K:195-196.
Chaudhury, A.M. (1962). Working Plan of Sundarbans Forest Division, for the period from 1960-61 to 1979-80, Vol I, II, and III. Forest Department.
Chaudhury, A.M. 1968. Working Plan of Sundarbans Forest Division for the period from 1960-61 to 1979-80, 82: East Pakistan Government Press, Dacca.
Chowdhury, J. H. 1973. Preliminary report of the investigation of the top dying of Sundri in the Sundarbans. BFRI, Chittagong, Bangladesh, 2 p.
Dyer, K.R. (1986). Coastal and estuarine sediment dynamics. John Wiley & Sons, Chichester.
Faizuddin, M. and Islam, S.A. 2003. Generated Technology and Usable Information of the Mangrove Silviculture. Mangrove Silviculture Division, Bangladesh Forest Research Institute
FAO, 1994. Review of the state of world marine fisheries resources. FAO Fisheries resources. FAO Fisheries Technical Approach Paper 335:143.
Fujimoto, K; Miyagi, T; Kikuchi, T; and kawana, T. (1996). Mangrove habitat formation and response to Holocene sea-level changes on kosrae Island, Micronesia. Mangrove and salt marshes, 1:47-57.
Gopal, B. & Chauhan, M. (2006) Biodiversity and its conservation in the Sundarban mangrove ecosystem. Aquatic Sciences, 68(3), 338-354.
Hassan, M. M. 1984. Soil formation in the recent deltaic region of Bangladesh. Bangladesh Journal of Soil Science 20:37-45.
Islam, M.L., Alam, M.J., Rheman, S., Ahmed, S.U. & Mazid, M.A. (2003, 2004). Water quality, nutrient dynamics and sediment profile in shrimp farms of the Sundarbans mangrove forest, Bangladesh. Indian Journal of Marine Sciences, 33, 170-176.
Jones, G; Battershill, C; and Cole, R. (1992). Marine reserves: do they work? In: C. Battershill (ed.) Proceedings of the International Temperate Reef Symposium, Aucland, New Zealand, p.29-45.
Karim, A. March 1994. Mangrove Silviculture—Volume 1-3. FAO/UNDP (IRDP): 38-140.
Sokal, R.R. and Rohlf, F.J. (1981). Biometry. San Francisco, W.H. Freeman.
Tamang, K. M. 1993. Wildlife Management Plan for the Sundarbans Reserved Forest. Integrated Resource Development of the Sundarbans Reserve Forest. UNDP /FAO, BGD/84/056, Khulna, Bangladesh.
Tiner, R. W; J R. (1984). Wetlands of the United States: Current Status and Recent Trends. Newton Corner, Massachusetts: U.S. Fish and Wildlife Service, Habitat Resources.
Troup, R.S. 1921. The Silviculture of Indian Trees—Volume 1. Clarendon Press, Oxford: 153-544.
UN-ESCAP, 1987. Final Report: Volume 2. Coastal environment management plan for Bangladesh. Bangkok, Thailand.
UN-ESCAP, 1988. Coastal environment management plan for Bangladesh. Bangkok, Thailand: 7-34.
UN-ESCAP, 1988. Coastal environment management plan for Bangladesh. Bangkok, Thailand: 7-34.
UNESCO, 1997. Convention Concerning the Protection of the World Cultural and Natural Heritage, France, Paris.
UN-ESCAP (1987). Final Report: Volumen 2. Coastal environment management plan for Bangladesh, Bangkok, Thailand. UN-ESCAP (1988). Coastal environment management plan for Bangladesh. Bangkok, Thailand, pp. 7-34.
WHO, 1981. Resistance of Disease vectors to pesticides. World Health Organisation, Chronicle, 35, 143.
WFB, 2006. The world fact book-Bangladesh. Population of Bangladesh, Wild Fact Book: 2-3.
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