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dc.contributor.authorYuan, X.en_US
dc.contributor.authorYin, Kedongen_US
dc.contributor.authorCai, W.en_US
dc.contributor.authorHo, A.en_US
dc.contributor.authorXu, J.en_US
dc.contributor.authorHarrison, P.en_US
dc.date.accessioned2017-05-03T11:47:28Z
dc.date.available2017-05-03T11:47:28Z
dc.date.issued2011en_US
dc.date.modified2011-08-19T06:45:35Z
dc.identifier.issn18106277en_US
dc.identifier.doi10.5194/bg-8-289-2011en_AU
dc.identifier.urihttp://hdl.handle.net/10072/39795
dc.description.abstractData from seven cruises in three different environments including the Pearl River estuary, sewage discharge outfall and eastern coastal/shelf waters, were used to examine the seasonal variations in net primary production (NPP) and the biologically active gases O2 and CO2. In the winter dry season, when monsoon-induced downwelling was dominant, NPP was low (-60ᵰ mmol C m-2 d-1) in all three regions. The negative NPP corresponded to low O2 influxes (-100ᵰ mmol O2 m-2 d-1) and CO2 effluxes (24ᱰ mmol C m-2 d-1). In the summer wet season, when upwelling brought the bottom oceanic waters to the nearshore due to the southwest monsoonal wind, there was a 2 to 15-fold increase in integrated primary production (IPP) compared to winter. The increase in IPP was likely due to the favorable conditions such as stratification and the nutrient inputs from upwelled waters and the Pearl River estuary. NPP reached up to 240ᱰ0 mmol C m-2 d-1 in the wet season. However, accompanying the high positive NPP, we observed an influx of O2 (-100ᶰ mmol O2 m-2 d-1) and efflux of CO2 (25ᱵ mmol C m-2 d-1). The high positive NPP corresponding to a CO2 source and O2 sink could be explained by the influence of the southwest monsoon-induced upwelling, as the upwelling brought cold, low DO (160ᳰ 卩 and high DIC (1960ᱰ0 塴m) water to the surface in the wet season. Hence, the subtropical Hong Kong coastal waters are generally a CO2 source due to the monsoonal influence in both the dry and wet seasons.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_AU
dc.format.extent1707836 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglishen_US
dc.language.isoen_AU
dc.publisherCopernicus GmbHen_US
dc.publisher.placeGermanyen_US
dc.relation.ispartofstudentpublicationNen_AU
dc.relation.ispartofpagefrom289en_US
dc.relation.ispartofpageto300en_US
dc.relation.ispartofissue2en_US
dc.relation.ispartofjournalBiogeosciences Discussionsen_US
dc.relation.ispartofvolume8en_US
dc.rights.retentionYen_AU
dc.subject.fieldofresearchEcology not elsewhere classifieden_US
dc.subject.fieldofresearchcode060299en_US
dc.titleInfluence of seasonal monsoons on net community production and CO2 in subtropical Hong Kong coastal watersen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.rights.copyright© The Author(s) 2011. The attached file is reproduced here in accordance with the copyright policy of the publisher. For information about this journal please refer to the journal's website or contact the authors.en_US
gro.date.issued2011
gro.hasfulltextFull Text


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