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dc.contributor.authorÖzkundakci, Deniz
dc.contributor.authorHamilton, David P.
dc.contributor.authorTrolle, Dennis
dc.date.accessioned2011-06-21T02:47:39Z
dc.date.available2011-06-21T02:47:39Z
dc.date.issued2011-06
dc.identifier.citationÖzkundakci, D., Hamilton, D.P. & Trolle, D. (2001). Modelling the response of a highly eutrophic lake to reductions in external and internal nutrient loading. New Zealand Journal of Marine and Freshwater Research, 45(2), 165-185.en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/5409
dc.description.abstractThe reduction of macronutrients to levels that limit primary production is often a critical element of mitigating eutrophication and reducing the potential for algal blooms. Lake Okaro has remained highly eutrophic despite an intensive catchment and in-lake restoration programme, including implementation of a constructed wetland, riparian protection, an alum application and application of a modified zeolite mineral (Z2G1) to reduce internal nutrient loading. A one-dimensional process-based ecosystem model (DYRESM-CAEDYM) was used in this study to investigate the need for further nutrient loading reductions of both nitrogen (N) and phosphorus (P). The model was calibrated against field data for a 2-year period and validated over two separate 1-year periods. Model simulations suggest that the trophic status of the lake, measured quantitatively with the Trophic Level Index (TLI), could shift from highly eutrophic to mesotrophic with external and internal loads of both N and P reduced by 75-90%. The magnitude of the nutrient load reductions is indicative of a major challenge in being able to effect transitions across trophic state categories for eutrophic lakes.en_NZ
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.publisherTaylor & Francisen_NZ
dc.relation.urihttp://www.informaworld.com/smpp/content~db=all~content=a938097010~frm=abslinken_NZ
dc.rightsThis article has been published in New Zealand Journal of Marine and Freshwater Research. © 2011 The Royal Society of New Zealand. Used with permission.
dc.subjectLake Okaroen_NZ
dc.subjectlake restorationen_NZ
dc.subjectnutrient limitationen_NZ
dc.subjectDYRESM-CAEDYMen_NZ
dc.subjectmodel validationen_NZ
dc.subjectphosphorusen_NZ
dc.subjectnitrogenen_NZ
dc.titleModelling the response of a highly eutrophic lake to reductions in external and internal nutrient loadingen_NZ
dc.typeJournal Articleen_NZ
dc.identifier.doi10.1080/00288330.2010.548072en_NZ
dc.relation.isPartOfNew Zealand Journal of Marine and Freshwater Researchen_NZ
pubs.begin-page165en_NZ
pubs.elements-id35976
pubs.end-page185en_NZ
pubs.issue2en_NZ
pubs.volume45en_NZ
uow.identifier.article-noPII 938097010en_NZ


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