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dc.contributor.authorAnderson, A. K.
dc.date.accessioned2012-06-19T05:12:35Z
dc.date.available2012-06-19T05:12:35Z
dc.date.issued2001
dc.identifier.urihttps://hdl.handle.net/10182/4555
dc.description.abstractWetlands are an important but diminishing natural resource in New Zealand. With the growing demand for protection of wetland areas, wetland edges need to be accurately delineated. Uncertainty over the best method to delineate wetland edges is a problem facing wetland managers in New Zealand. Internationally, wetland edges are delineated using three types of indicators, namely; hydrology, soil and vegetation. In this study, the usefulness of three delineation methods for New Zealand managers was examined. A pilot survey of four wetlands in Canterbury was undertaken. The study compared the wetland edges delineated with the following methods; 1) presence and absence of hydric soils, 2) prevalence of hydrophytic vegetation, and 3) presence and absence of wetland vegetation indicator species. The hydric soils investigations showed that the edge delineated by soil indicators can differ from that delineated by vegetation indicators. Comparison of the two vegetation edges delineated showed that these edges were within 0.51 m of one another. The edge based on prevalence of wetland vegetation was, in most cases, positioned closer to the visible water edge. The three methods of delineation were evaluated against five practicality criteria for wetland management. The findings of this study have a number of management implications. It was concluded that an indicator species method is the most useful delineation method when using vegetation parameters. However, managers must understand that any delineation method based on vegetation indicators has a number of limitations in certain situations. Finally, soil and vegetation delineation methods measure different temporal aspects of the wetland hydrology and site history. Consequently, when choosing a delineation method, managers should consider; the characteristics of the individual wetland being delineated, the management goals strived towards, and the type of management that will occur in conjunction with delineation.en
dc.formatvi, 72 leaves
dc.language.isoenen
dc.publisherLincoln Universityen
dc.rights.urihttps://researcharchive.lincoln.ac.nz/page/rights
dc.subjectwetland delineationen
dc.subjectwetland edgeen
dc.subjectwetland indicatorsen
dc.subjecthydrologyen
dc.subjecthydric soilsen
dc.subjecthydrophytic vegetationen
dc.subjectindicators speciesen
dc.subjectprevalence valuesen
dc.subjectwetland managementen
dc.subjectecosystem restorationen
dc.subjectNew Zealanden
dc.titleWetland edge delineation : a dissertation submitted in partial fulfilment of the requirements for the degree of Master of Applied Science (Environmental Management) at Lincoln Universityen
dc.typeDissertationen
thesis.degree.grantorLincoln Universityen
thesis.degree.levelMastersen
thesis.degree.nameMaster of Applied Scienceen
lu.thesis.supervisorWard, Jonet
lu.contributor.unitDepartment of Environmental Managementen
dc.rights.accessRightsThis digital dissertation can be viewed only by current staff and students of Lincoln University.en
dc.subject.anzsrc050205 Environmental Managementen
dc.subject.anzsrc050202 Conservation and Biodiversityen
dc.subject.anzsrc050104 Landscape Ecologyen
dc.subject.anzsrc060208 Terrestrial Ecologyen


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