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Showing 1 to 11 of 11 for “"0503 Soil Sciences"”.
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Hydraulic conductivity and chemical compatibility of some Victorian soils used as liners for waste containment
… in which compacted liners of predominantly clay soils are employed between waste and natural ground to act as barrier to chemical leaching. It follows that the design hydraulic conductivity of the clay is a governing parameter and many environmental regulations require this parameter to be less …
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Methodologies for the analysis of petroleum hydrocarbons extracted from contaminated soils
… of analyses of TPH and BTEX on contaminated soils annually research into and assessment of current methods is required to demonsfrate the effects on outcomes of method choice. In the Australian context the problem of developing standard methods for the analysis of hydrocarbon contamination of …
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Use of gypsum blocks for measurement of soil water status : A dissertation submitted in partial fulfilment of the requirements for the Diploma of Agricultural Science in the University of Canterbury [Lincoln College]
Considerable attention has been devoted to soil moisture studies by workers in agriculture, forestry, and engineering, and to a lesser extent by geographers. Methods range from age-old one of feeling a soil, to the recent neutron-scattering devices. The Gravimetric method of soil moisture …
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Biodiversity impacts of Chilean needle grass Nassella neesiana on Australia’s indigenous grasslands
… invasion. Nassella neesiana was found to deplete soil water in spring compared to T. triandra, a likely mechanism of biodiversity impact. Areas occupied by N. neesiana in three disparate grasslands were found to have significantly reduced native vascular plant diversity (species m-2). Diversity …
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A study of the influence of aspect on some soil properties of a Kaikoura steepland soil under a tussock grassland : A dissertation submitted in partial fulfilment of the requirements for the degree of Bachelor of Agricultural Science (Honours) in the University of Canterbury [Lincoln College]
Steepland soils tend to show more variability than soils on rolling or flat land. One of the factors responsible for some of the variation within these soils is the microclimatic changes that occur between different aspects of a hill. North - and south - facing slopes offer excellent situations in …
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Studies on the aerobic bacterial flora of a New Zealand tussock grassland soil
… flora of a single New Zealand grassland soil whose characteristics are described. The 4 parts deal respectively with the characterisation of the aerobic heterotrophic bacterial flora, the activity this flora as measured by a number of different techniques, nitrification and sulphur …
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Land application of liquid waste: a case study of piggery waste application on light soils
Some fieldwork conducted at University of Canterbury
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Development of mechanistic energy balance models for grassland
… of grassland productivity include near-surface soil and air temperatures and plant water use. Therefore it is important to understand how grasslands partition the energy they receive into heat and vapour fluxes, and soil heat flux which regulates the underlying soil temperatures. The project …
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A study of some soil fertility problems in Canterbury
… of the early work associated with improvement of soil fertility was confined to the relatively productive plains and other readily accessible regions. That these areas have been highly developed agriculturally may be seen by the capability of some of them to give maximum pasture productions in …
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A management study of irrigation farming in the Ashburton-Lyndhurst scheme of Mid-Canterbury
… is used to raise the productive capacity of the soil, where soil moisture is a limiting factor. Many irrigation areas can not achieve any production without the supplementation of soil moisture, while others employ irrigation as a profitable means of boosting the normal production level. In 1935, …
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The effect of winter grazing and a nitrification inhibitor on nitrous oxide emissions and denitrification in a stony soil
… of New Zealand. Such intensive grazing on wet soil increases the risk of denitrification and the production of the powerful greenhouse gas, nitrous oxide (N₂O). However, at the beginning of this research project, no information was available on denitrification and N₂O emission from forage crops …