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The influence of stand age on benthic decomposition and recycling of organic matter in managed mangrove forests of Malaysia

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dc.contributor Australian Institute Of Marine Science
dc.contributor Australian Inst Marine Sci
dc.contributor Dept Zool
dc.contributor Universiti Malaya
dc.contributor Univ Malaya
dc.contributor Fac Sci
dc.contributor Australian Institute Of Marine Science (aims) en
dc.contributor.author DIXON, P
dc.contributor.author ALONGI, DM
dc.contributor.author SASEKUMAR, A
dc.contributor.author TIRENDI, F
dc.date.accessioned 2013-02-28T06:51:00Z
dc.date.accessioned 2013-02-28T06:51:00Z
dc.date.accessioned 2017-03-21T01:22:49Z
dc.date.accessioned 2020-09-02T03:56:00Z
dc.date.available 2013-02-28T06:51:00Z
dc.date.available 2013-02-28T06:51:00Z
dc.date.available 2017-03-21T01:22:49Z
dc.date.available 2020-09-02T03:56:00Z
dc.date.issued 1998-07-31
dc.identifier 1223 en
dc.identifier.citation Alongi DM, Sasekumar A, Tirendi F and Dixon P (1998) The influence of stand age on benthic decomposition and recycling of organic matter in managed mangrove forests of Malaysia. Journal of Experimental Marine Biology and Ecology. 225: 197-218. en
dc.identifier.issn 0022-0981
dc.identifier.uri http://epubs.aims.gov.au/11068/1223
dc.description.abstract Decomposition of sediment organic matter was examined in relation to forest age in 2-, 15- and 60-year old, managed Rhizophora apiculata (Blume) stands in the Matang Mangrove Forest Reserve of peninsular Malaysia. Rates of O-2 consumption (range: 11.5-21.4 mmol m(-2) d(-1)) and CO, production (range: 8.9-20.9 mmol m(-2) d(-1)) were equivalent among the forests indicating that early diagenesis is not Linked to stand age and age-related differences in rates of forest production. There were, however, site differences in the dominance of specific diagenetic pathways. Rates of sulfate reduction (to 40 cm depth) averaged 8.9+/-3.1 mmol S m(-2) d(-1) and 7.2+/-0.3 mmol S m(-2) d(-1) in the 15- and 60-year old forests, respectively, accounting for most (75-125%) of the total mineralization. In contrast, sulfate reduction (3.0+/-0.5 mmol S m(-2) d(-1)) constituted a considerably smaller proportion (42%) of total organic matter oxidation at the 2-year old forest. Rates of solute efflux across the sediment-water interface and vertical profiles of dissolved Mn and NO2- + NO3- suggest that manganese reduction and denitrification-nitrification, coupled with aerobic respiration, account for most oxidation of organic matter at the 2-year old forest. The loss of particulate organic matter and the increased importance of aerobic and suboxic processes in the 2 year-old forest suggest some impact from disturbance of tree removal. A shift to proportionally less sulfate reduction in sediments of regenerating forests may result in greater availability of dissolved nutrients and some trace metals, and serve to reduce exposure of R. apiculata seedlings to anoxic, toxic solutes (e.g., sulfides). This diagenetic shift may facilitate rapid seedling,growth and regeneration of forests. (C) 1998 Elsevier Science B.V.
dc.language English
dc.language en en
dc.publisher Elsevier Science en
dc.relation.ispartof Null
dc.relation.ispartof Journal of Experimental Marine Biology and Ecology - pages: 225: 197-218 en
dc.relation.uri http://data.aims.gov.au/metadataviewer/uuid/f0d0e546-2c85-48dc-825d-60db89c6c9db en
dc.subject Carbon
dc.subject Ecology
dc.subject Sediment
dc.subject Metabolism
dc.subject Nutrient
dc.subject Gazi Bay
dc.subject Environmental Sciences & Ecology
dc.subject Organic Matter
dc.subject Sediments
dc.subject Swamp
dc.subject Kenya
dc.subject Nitrogen
dc.subject Marine & Freshwater Biology
dc.subject Sulfate Reduction
dc.subject Mangrove
dc.subject Decomposition
dc.subject Natural-waters
dc.subject Pore Water
dc.title The influence of stand age on benthic decomposition and recycling of organic matter in managed mangrove forests of Malaysia
dc.type journal article en
dc.identifier.wos WOS:000074666700003


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