Data

Benthic decomposition rates in mangroves of the Mekong Delta, Vietnam

Australian Institute of Marine Science
Australian Institute of Marine Science (AIMS)
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://apps.aims.gov.au/metadata/view/5f8a20c7-ef59-43e2-8456-45e55d2fba64&rft.title=Benthic decomposition rates in mangroves of the Mekong Delta, Vietnam&rft.identifier=https://apps.aims.gov.au/metadata/view/5f8a20c7-ef59-43e2-8456-45e55d2fba64&rft.publisher=Australian Institute of Marine Science (AIMS)&rft.description=Rates and pathways of organic matter decomposition were estimated in sediments of Rhizophora apiculata plantations (6, 8 and 35 years old) in the lower Mekong delta, Vietnam.Rates of total carbon oxidation were assessed. Sediment cores for pore water and solid-phase elements and for redox potential and pH were taken at each site. Sediment temperature, Eh, and pH were measured to a depth of 40 cm. The water content of samples was determined as difference in weight loss of wet sediment dried at 80°C for 16 h. The percentage of sand, silt and clay was determined by sieve and pipette analysis on duplicate bulk samples.Pore water samples were analyzed for sulphate, chlorine, Fe, Mn, DOC, phosphate, ammonium, nitrite, nitrate and hydrogen sulphide. Dissolved inorganic nutrients were determined by standard automated techniques. Solid-phase elements (TOC, total N, P, S, Fe, Mn, FeS2) were determined in the same sediment slices squeezed for pore water. Methane concentration in the pore water was determined.Above ground biomass and average net primary production for each forest was assessed. Net rates of iron and manganese reduction were estimated with a core-incubation method.Denitrification was measured from replicate cores. Fluxes of Total CO2, DOC, Fe, Mn, DON, DOP, ammonium, nitrite, nitrate and phosphate across the sediment-water interface were made. Three opaque-glass chambers per site were used to measure CO2, O2, and methane fluxes across the air-sediment interface. To assess nutrient cycling in mangroves in Mekong Delta.Maintenance and Update Frequency: notPlannedStatement: Statement: Methods and sensors are outlined in the paper: Alongi DM, Tirendi F, Trott LA and Xuan TT (2000) Benthic decomposition rates and pathways in plantations of the mangrove, Rhizophora apiculata, in the Mekong delta, Vietnam. Marine Ecology Progress Series 194: 87-101.&rft.creator=Australian Institute of Marine Science (AIMS) &rft.date=2024&rft.coverage=westlimit=105.2; southlimit=8.8; eastlimit=105.2; northlimit=8.8&rft.coverage=westlimit=105.2; southlimit=8.8; eastlimit=105.2; northlimit=8.8&rft_rights=Creative Commons Attribution-NonCommercial 3.0 Australia License http://creativecommons.org/licenses/by-nc/3.0/au/&rft_rights=Use Limitation: All AIMS data, products and services are provided as is and AIMS does not warrant their fitness for a particular purpose or non-infringement. While AIMS has made every reasonable effort to ensure high quality of the data, products and services, to the extent permitted by law the data, products and services are provided without any warranties of any kind, either expressed or implied, including without limitation any implied warranties of title, merchantability, and fitness for a particular purpose or non-infringement. AIMS make no representation or warranty that the data, products and services are accurate, complete, reliable or current. To the extent permitted by law, AIMS exclude all liability to any person arising directly or indirectly from the use of the data, products and services.&rft_rights=Attribution: Format for citation of metadata sourced from Australian Institute of Marine Science (AIMS) in a list of reference is as follows: Australian Institute of Marine Science (AIMS). (2009). Benthic decomposition rates in mangroves of the Mekong Delta, Vietnam. https://apps.aims.gov.au/metadata/view/5f8a20c7-ef59-43e2-8456-45e55d2fba64, accessed[date-of-access].&rft_rights=Resource Usage:Acknowledge grant funding from the Australian Centre for International Agricultural Research,Use of the AIMS data is for not-for-profit applications only. All other users shall seek permission for use by contacting AIMS. Acknowledgements as prescribed must be clearly set out in the user's formal communications or publications.Access Constraint: intellectualPropertyRightsUse Constraint: intellectualPropertyRightsSecurity classification code: unclassifiedMetadata Usage:Access Constraint: intellectualPropertyRightsUse Constraint: intellectualPropertyRightsSecurity classification code: unclassified&rft_subject=oceans&rft.type=dataset&rft.language=English Access the data
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Creative Commons Attribution-NonCommercial 3.0 Australia License
http://creativecommons.org/licenses/by-nc/3.0/au/

Use Limitation: All AIMS data, products and services are provided "as is" and AIMS does not warrant their fitness for a particular purpose or non-infringement. While AIMS has made every reasonable effort to ensure high quality of the data, products and services, to the extent permitted by law the data, products and services are provided without any warranties of any kind, either expressed or implied, including without limitation any implied warranties of title, merchantability, and fitness for a particular purpose or non-infringement. AIMS make no representation or warranty that the data, products and services are accurate, complete, reliable or current. To the extent permitted by law, AIMS exclude all liability to any person arising directly or indirectly from the use of the data, products and services.

Attribution: Format for citation of metadata sourced from Australian Institute of Marine Science (AIMS) in a list of reference is as follows: "Australian Institute of Marine Science (AIMS). (2009). Benthic decomposition rates in mangroves of the Mekong Delta, Vietnam. https://apps.aims.gov.au/metadata/view/5f8a20c7-ef59-43e2-8456-45e55d2fba64, accessed[date-of-access]".

Resource Usage:Acknowledge grant funding from the Australian Centre for International Agricultural Research,Use of the AIMS data is for not-for-profit applications only. All other users shall seek permission for use by contacting AIMS. Acknowledgements as prescribed must be clearly set out in the user's formal communications or publications.Access Constraint: intellectualPropertyRightsUse Constraint: intellectualPropertyRightsSecurity classification code: unclassifiedMetadata Usage:Access Constraint: intellectualPropertyRightsUse Constraint: intellectualPropertyRightsSecurity classification code: unclassified

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Brief description

Rates and pathways of organic matter decomposition were estimated in sediments of Rhizophora apiculata plantations (6, 8 and 35 years old) in the lower Mekong delta, Vietnam.Rates of total carbon oxidation were assessed. Sediment cores for pore water and solid-phase elements and for redox potential and pH were taken at each site. Sediment temperature, Eh, and pH were measured to a depth of 40 cm. The water content of samples was determined as difference in weight loss of wet sediment dried at 80°C for 16 h. The percentage of sand, silt and clay was determined by sieve and pipette analysis on duplicate bulk samples.Pore water samples were analyzed for sulphate, chlorine, Fe, Mn, DOC, phosphate, ammonium, nitrite, nitrate and hydrogen sulphide. Dissolved inorganic nutrients were determined by standard automated techniques. Solid-phase elements (TOC, total N, P, S, Fe, Mn, FeS2) were determined in the same sediment slices squeezed for pore water. Methane concentration in the pore water was determined.Above ground biomass and average net primary production for each forest was assessed. Net rates of iron and manganese reduction were estimated with a core-incubation method.Denitrification was measured from replicate cores. Fluxes of Total CO2, DOC, Fe, Mn, DON, DOP, ammonium, nitrite, nitrate and phosphate across the sediment-water interface were made. Three opaque-glass chambers per site were used to measure CO2, O2, and methane fluxes across the air-sediment interface. To assess nutrient cycling in mangroves in Mekong Delta.

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Maintenance and Update Frequency: notPlanned
Statement: Statement: Methods and sensors are outlined in the paper: Alongi DM, Tirendi F, Trott LA and Xuan TT (2000) Benthic decomposition rates and pathways in plantations of the mangrove, Rhizophora apiculata, in the Mekong delta, Vietnam. Marine Ecology Progress Series 194: 87-101.

Notes

Credit
Alongi, Daniel M, Dr (Principal Investigator)

Modified: 17 10 2024

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text: westlimit=105.2; southlimit=8.8; eastlimit=105.2; northlimit=8.8

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Benthic decomposition rates and pathways in plantations of the mangrove, Rhizophora apiculata, in the Mekong delta, Vietnam: Alongi DM, Tirendi F, Trott LA and Xuan TT (2000) Benthic decomposition rates and pathways in plantations of the mangrove, Rhizophora apiculata, in the Mekong delta, Vietnam. Marine Ecology Progress Series 194: 87-101.

local : articleId=1536

Rates and pathways of benthic mineralization in extensive shrimp ponds of the Mekong Delta, Vietnam: Alongi DM, Tirendi F and Trott LA (1999) Rates and pathways of benthic mineralization in extensive shrimp ponds of the Mekong Delta, Vietnam. Aquaculture 175: 269-292.

local : articleId=1485

Pelagic processes in extensive shrimp ponds of the Mekong Delta, Vietnam: Alongi DM, Dixon P, Johnston DJ, Tien DV and Xuan TT (1999) Pelagic processes in extensive shrimp ponds of the Mekong Delta, Vietnam. Aquaculture 175: 121-141.

local : articleId=1484

Identifiers
  • global : 5f8a20c7-ef59-43e2-8456-45e55d2fba64
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