Watershed management in New Zealand : status and research needs

dc.contributor.authorDils, Robert E.
dc.description.abstractNature has endowed New Zealand with unique geologic, climatic, and biotic conditions. Her volcanic cones and majestic Southern Alps and her verdant plains and rolling hills provide a landscape as rugged and beautiful as will be found anywhere. Her indigenous fauna and flora are often quite different from that of the rest of the world and consequently have been of widespread interest to biologists everywhere. Her geologic youth and structure and her island climate, in combination with the biological resources, have made a land which is ecologically on edge. These natural endowments along with the manner in which she has utilized her land, have given New Zealand some of the most spectacular and rapid erosion to be found. It is quite evident that geologic and climatic conditions combine to give unusually high rates of natural erosion. Present topographic features indicate the past occurrence of large-scale flooding as well. Prior to the arrival of the Maori, it is very likely that most of the land mass of New Zealand below present bush lines was covered with indigenous bush or forest. Forest fires of a catastrophic nature undoubtedly occurred as a result of lightning, and volcanic eruptions. The exposed soils left by these catastrophes contributed to natural deterioration. While vast areas of forest cover were destroyed, they probably were healed by nature with forest or with grass or herbaceous cover. Further, it is probable that large areas in the mountains were, as they are now, subject to landslides and slipping due to earthquakes and excessive local rainfall. Again, the healing process was probably rapid in most of such exposed areas.en
dc.identifier.citationDils, R. (1965). Watershed management in New Zealand : Status and research needs (Special publication (Tussock Grasslands and Mountain Lands Institute) ; no. 4). Lincoln, N.Z.: Tussock Grasslands and Mountain Lands Institute].en
dc.publisherLincoln College. Plant Science Department.
dc.relation.ispartofseriesSpecial publication / Tussock Grasslands and Mountain Lands Institute ; no. 4.en
dc.rightsCopyright © Tussock Grasslands and Mountain Lands Institute.en
dc.subjectwatershed managementen
dc.subjectNew Zealanden
dc.subjectquantitative assessmenten
dc.subjectvegetative reinforcementen
dc.subjectland use hydrologyen
dc.subjectexotic wildlifeen
dc.subjectnoxious plants controlen
dc.subjectsoil physicsen
dc.subjectsoil chemistryen
dc.subjecthigh country hydrologyen
dc.subjectwater qualityen
dc.subjecthydro-climatic changesen
dc.subjectland treatmenten
dc.subjectstructural controlen
dc.subject.anzsrcANZSRC::050205 Environmental Managementen
dc.subject.anzsrcANZSRC::050302 Land Capability and Soil Degradationen
dc.subject.anzsrcANZSRC::050304 Soil Chemistry (excl. Carbon Sequestration Science)en
dc.subject.anzsrcANZSRC::050204 Environmental Impact Assessmenten
dc.subject.anzsrcANZSRC::050202 Conservation and Biodiversityen
dc.subject.anzsrcANZSRC::079901 Agricultural Hydrology (Drainage, Flooding, Irrigation, Quality, etc.)en
dc.subject.anzsrcANZSRC::050101 Ecological Impacts of Climate Changeen
dc.titleWatershed management in New Zealand : status and research needsen
lu.contributor.unitDepartment of Agricultural Sciences
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