Australian Journal of Soil Research articles from July 1999

Australian Journal of Soil Research archives from July 1999

A sampling strategy to assess the effects of land use on microbial functional diversity in soils.
July 1, 1999... Abstract A suitable sampling strategy is necessary for broad-scale investigations of the effects of land use on microbial functional diversity in soils. We report on the development of procedures for sampling and handling field soils for...

Attributes of Tasmanian ferrosols under different agricultural management.
July 1, 1999... Abstract Attributes of 25 Tasmanian ferrosols under 5 forms of management (low-input pasture, high-input pasture, intermittent cropping, continuous cropping, and pyrethrum production) were assessed using field and laboratory techniques, to...

Investigation of dryland salinity using the electrical image method.
July 1, 1999... Abstract Electrical imaging is a 2-dimensional investigation method that can be used to rapidly determine subsurface conductivity variation. In dryland salinity studies, electrical imaging is used to define the vertical extent of high...

Pyrite micromorphology in three Australian Holocene sediments.
July 1, 1999... Abstract The distribution and morphology of pyrite in 3 Holocene estuarine sediments were examined using light microscopy, analytical scanning electron microscopy, and X-ray diffraction. The distribution and morphologies of pyrite were...

Hill slope effects on the vertical fluxes of photosynthetically fixed [sup.14]C in a grazed pasture.
July 1, 1999... Abstract New Zealand hill-country farms consist of an amalgamation of land units in different slope and aspect categories, each with unique production potentials. Information on the influence these slope categories have on carbon (C)...

The source and distribution of cadmium in soils on a regularly fertilised hill-country farm.
July 1, 1999... Abstract Cadmium (Cd) accumulation in New Zealand pastoral soils is often attributed to application of Cd-containing phosphatic fertiliser. Other sources may, however, contribute to the Cd load of the topsoil, e.g. atmospheric deposition...

Pathways of phosphorus, nitrogen, and carbon movement over and through texturally differentiated soils, South Australia.
July 1, 1999... Abstract One method for preventing the degradation of water supplies through contamination with phosphorus (P), nitrate ([NO.sub.3]), and dissolved organic carbon (DOC) is to restrict movement of these contaminants from the catchment into...

The forms of potassium and potassium adsorption in some virgin soils from south-western Australia.
July 1, 1999... Abstract This investigation was undertaken to determine the potassium (K) status and adsorption behaviour of 227 samples from horizons of 41 representative virgin soil profiles, extending from Geraldton in the north to the Great Southern...

Anion and cation leaching through large undisturbed soil cores under different flow regimes. 1. Experimental results.
July 1, 1999... Abstract The movement of anions and cations under different unsaturated flow regimes was studied in 2 large undisturbed cores from a soil under pasture. Sequential leaching of calcium sulfate (Ca[SO.sub.4]) and potassium bromide (KBr)...

Anion and cation leaching through large undisturbed soil cores under different flow regimes. 2(*). Simulation results.
July 1, 1999... Abstract In the first part of this study, the movement of anions and cations during sequential leaching of Ca[SO.sub.4] and KBr solutions under different flow regimes in 2 large undisturbed cores was simulated using a mobile-immobile...

Effect of cattle and sheep treading on surface configuration of a sedimentary hill soil.
July 1, 1999... Abstract Pastures with a 6-year history of grazing by cattle (cattle pasture) and sheep (sheep pasture) were used to measure the effects on soil disturbance of a single severe grazing/treading event by sheep (S), one by cattle ([C.sub.1]),...

Soil-landscape and soil-hydrological relationships in the Glendhu Experimental Catchments, East Otago Uplands, New Zealand.
July 1, 1999... Abstract Soil-landscape relationships were investigated in a first-order catchment and a fifth-order catchment of the Waipori River. The soils are formed mainly from loess and loess-colluvium derived from schist, with limited inclusions of...