Australian Journal of Soil Research articles from March 2006

Australian Journal of Soil Research archives from March 2006

A survey of Australian temperate pastures in summer and winter rainfall zones: soil nematodes, chemical, and biochemical properties.
March 1, 2006... Introduction Sown permanent and semi-permanent temperate pastures in high rainfall areas (>600mm annual rainfall) are an important component of the Australian landscape, covering 8.26 million hectares, with > 50% of all cattle sales and...

Soil microbial respiration responses to repeated urea applications in three grasslands.
March 1, 2006... Introduction Pastoral ecosystems can achieve high rates of net primary productivity, but the ephemeral nature of grass leaves means that they turnover rapidly. Production that is not utilised, potentially representing significant...

Importance of surface charge characteristics when selecting soils for wastewater re-use.
March 1, 2006... Introduction Land application is an established method for re-using liquid wastes (e.g. sewage and feedlot effluent), and is practised in many areas of Australia across a wide range of soil types (e.g. Gerritse 1993; Menzies et al. 1999;...

Chemical properties of two soils irrigated with thermo-mechanical pulp mill effluent.
March 1, 2006... Introduction In New Zealand, pulp and paper mill effluent is commonly discharged to surface waters after primary or secondary treatment. Even after such treatment, the effluent may contain high concentrations of organic carbon that can...

Irrigation controlled by a wetting front detector: field evaluation under sprinkler irrigation.
March 1, 2006... Introduction Irrigation scheduling by soil water content measurement requires 3 pieces of information; the minimum water content below which there is unacceptable plant stress, an upper drained limit, and the depth of soil that needs to be...

Handling the water content discontinuity at the interface between layered soils within a numerical scheme.
March 1, 2006... Introduction The study of water flow through layered soils has been an important environmental problem, which has relevance in various fields such as contaminant transport, agricultural science, and waste disposal (Colominas et al. 2002;...

Soil P in a forested seabird colony: inventories, parent material contributions, and N : P stoichiometry.
March 1, 2006... Introduction Nitrogen (N) and phosphorus (P) are essential plant nutrients with contrasting biogeochemical behaviours. Although N can be fixed from the atmosphere, P comes mostly from soil parent material. Consequently, as soils age and...

Chemical characterisation of bog peat and dried peat of the Australian Alps.
March 1, 2006... Introduction Peat is an organic soil formed where the combination of climate and topography results in a higher rate of organic matter production than decay. This accumulation of organic matter is facilitated by waterlogging (limiting...

Microstructure and water retention of Oxisols in Thailand.
March 1, 2006... Introduction Oxisols generally have a fine texture, an open macrostructure, and stable aggregates which combine to produce favourable water retention and internal drainage characteristics (El-Swaify 1980). These soils display an...

Processes influencing soil carbon storage following afforestation of pasture with Pinus radiata at different stocking densities in New Zealand.
March 15, 2006... Introduction Afforestation of agricultural land (arable or pastoral), through abandonment or establishment of plantation forests, is a major global land-cover change. In New Zealand, the area of plantation forests dominated by Pinus...

The effect of organic mulch amendments on the physical and chemical properties and revegetation success of a saline-sodic minespoil from central Queensland, Australia.
March 15, 2006... Introduction Stripping operations at many open-cut coal mines in central Queensland, Australia, result in spoil (waste rock) materials of Tertiary origin being deposited on the surface. Deeply weathered Tertiary sediments can be highly...

Nutrient leaching and changes in soil characteristics of four contrasting soils irrigated with secondary-treated municipal wastewater for four years.
March 15, 2006... Introduction Application to land is the preferred method to treat wastewaters in New Zealand. Effluent application to land provides the dual benefits of supplying nutrient and water to plants at times of need, while decreasing the risk of...

Capture of overland flow by a tree belt on a pastured hillslope in south-eastern Australia.
March 15, 2006... Introduction In the semiarid agricultural regions of the world, there is growing interest in the placement of tree belts on hillslopes within run-on zones to increase their growth by increasing local water supply (e.g. by 'runoff...

Influence of long-term irrigation on the distribution and availability of soil phosphorus under permanent pasture.
March 15, 2006... Introduction Phosphorus (P) is a major nutrient that influences plant growth and development, and P transformations and mobility in the soil-plant system are controlled by a combination of biological, chemical, and physical processes...

Speciation distribution of Cd, Pb, Cu, and Zn in contaminated Phaeozem in north-east China using single and sequential extraction procedures.
March 15, 2006... Introduction Contamination by heavy metals in the soil environment is of great concern because of their toxicity and threat to human health (Zhou and Song 2004). Unlike organic contaminants, most metals in the soil environment do not...

The geochemistry of soils on a catena on sedimentary rock at Nam Phong, north-east Thailand.
March 15, 2006... Introduction Element concentrations in soils are mainly related to the chemical composition of parent materials and to changes due to weathering which differ for various climatic environments (Duddy 1980; Topp et al. 1984). As soil...

Spatial and time-dependent patterns of selenium (Se) release from selected Se fertiliser granules.
March 15, 2006... Introduction Selenium (Se) is an essential trace element for animals. Widespread deficiency of Se has been reported in grazing ruminants in New Zealand (Watkinson 1983; West et al. 2002), Australia (Judson and Reuter 1999), and other...

Sulfur mineralisation in a coarse-textured soil after different sulfate fertilisation histories, and yield responses of wheat and lupin.
March 15, 2006... Introduction The use on crops and pastures of high analysis phosphorus and nitrogenous fertilisers in place of low analysis fertilisers containing sulfate (S[O.sub.4.sup.2-]) has substantially changed the amounts of sulfur (S) added to...

Analysis of partial breakthrough data by a transfer-function method.
March 15, 2006... Introduction Assessment of the transport of solutes through the vadose zone is becoming increasingly important to monitor the quality of land and water resources. The transport of solute is usually predicted by mathematical models (van...

Three-dimensional numerical modeling of a four-pin probe for soil water content.
March 15, 2006... Introduction Frequency domain (FD) technique is now accepted as an effective tool to measure soil water content (Dean et al. 1987; Gaskin and Miller 1996; Hilhorst 1998). A major advantage of FD technique over time domain reflectometry...

Recently published books (Feb 2006).(Soils News)(Bibliography)
March 15, 2006... Recently published books (Feb 2006): Trends in Agriculture and Soil Pollution Research by James V. Livingston (Ed.) Published: February 2006 Hardcover: 236 pp. Publisher: Nova Science Publishers ISBN: 1594543259 ...

Conferences in 2006.(Soils News)
March 15, 2006... Conferences in 2006: 4th Annual manufactured soils conference, 22-23 Feb USA; http://www.proprecycles.org/PROP%20Conferences. html ABARE Outlook Conf. A market assessment forum for Australian agriculture and natural resources...

Useful web sites for soil resources.(Soils News)
March 15, 2006... http://www.stormloader.com/geocoop/soils.htm#SOFT WARE http://hintze-online.com/sos/soils-online.html http://soils.usda.gov/ http://www.nscss.org/ssource.html http://www.fao.org/ag/agl/agll/wrb/default.stm ...