<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>32</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Daly, Christine A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Carbon sources microbial community production and respiration in constructed wetlands of the Alberta Canada oil sands mining area</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">field</style></keyword><keyword><style  face="normal" font="default" size="100%">microbiology</style></keyword><keyword><style  face="normal" font="default" size="100%">salinity</style></keyword><keyword><style  face="normal" font="default" size="100%">sodicity</style></keyword><keyword><style  face="normal" font="default" size="100%">tailings water</style></keyword><keyword><style  face="normal" font="default" size="100%">wetlands</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2007</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://search.proquest.com/docview/304849939</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">University of Windsor Biological Sciences </style></publisher><pub-location><style face="normal" font="default" size="100%">Windsor, ON </style></pub-location><pages><style face="normal" font="default" size="100%">227 pages </style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Carbon sources, microbial community production and respiration were determined in 9 wetlands in northeastern Alberta subject to oil sands mining. A stable isotope mixing model estimated the proportion of carbon sources (primary production, sediment and petroleum) assimilated by microbes. The proportions of petroleum-derived carbon from oil sands process material (OSPM)-affected wetlands ranged from 62-97%. Bacterioplankton production was quantified by monitoring 3 H-leucine incorporation into bacterial proteins. Production and methanogenesis were inhibited by sulphate and/or salinity. Amending wetland sediments with topsoil, a reclamation strategy, did not affect bacterial production, or stimulate decomposition. Unvegetated wetland sediments were small net exporters of C (0.61 mg/m 2 /d) and do not appear to be on a trajectory to becoming net sinks in these early stages of development. Overall, microbial functional processes in OSPM-affected wetlands are markedly different from processes in reference constructed wetlands of equivalent age and do not correspond to those in a natural wetland.</style></abstract><custom3><style face="normal" font="default" size="100%">http://www.worldcat.org/oclc/577949982</style></custom3><custom4><style face="normal" font="default" size="100%">OSEMB</style></custom4></record></records></xml>