Australian Journal of Soil Research articles from March 2008

Australian Journal of Soil Research archives from March 2008

Desalinisation by zone leaching: laboratory investigations in a model sand-tank.(Report)
March 1, 2008... Introduction The introduction of irrigation in arid and semi-arid environments inevitably leads to watertable rise and often to problems of waterlogging and salinisation. Hoffman and Durnford (1999) reported how these twin problems have...

Use of gamma emission computed tomography to study the effect of electrolyte concentration on regions of preferred flow and hydraulic conductivity in deep regolith materials.(Report)
March 1, 2008... Introduction The understanding, characterisation, and parameterisation of the hydraulic properties of natural porous media are fundamentally dependent upon the accurate characterisation of their complex 3-dimensional (3-D) structure (Bouma...

Impact of soil consolidation and solution composition on the hydraulic properties of coastal acid sulfate soils.(Report)
March 1, 2008... Introduction Coastal acid sulfate soils (ASS) in Australia, and worldwide, were generally deposited as unconsolidated sediments during the Holocene and contain (or contained) sulfidic minerals commonly in the form of pyrite (Fe[S.sub.2])...

Comparison of solid-state [sup.13]C NMR spectra of soil organic matter from an experimental burning site acquired at two field strengths.(nuclear magnetic resonance)(Report)
March 1, 2008... Introduction Nuclear magnetic resonance (NMR) spectroscopy has become an important method, probably the most important method, for determining the chemical composition of soil organic matter (Preston 1996, 2001). Although there is a wealth...

Trace element fractionation processes in resuspended mineral aerosols extracted from Australian continental surface materials.(Report)
March 1, 2008... Introduction The chemical composition of airborne particulate matter fine enough to be inhaled (< 10 [micro]m, [PM.sub.10]) ultimately depends upon the source materials, combined with its weathering and transport history. Much attention is...

Microbial biomass carbon and some soil properties as influenced by long-term sodic-water irrigation, gypsum, and organic amendments.(Report)
March 1, 2008... Introduction Due to inadequate and un-assured supplies of good quality water in many arid and semi-arid regions of the world, farmers use sodic ground waters for irrigating crops. Long-term and indiscriminate use of sodic waters causes...

Decomposition rate of cereal straw as affected by soil placement.(Report)
March 1, 2008... Introduction Post-harvest crop residues are an important resource for arable farmers because they add organic matter to the soil and recycle plant nutrients. Returning crop residues to the soil has long been advocated as a practice that...

Loss of phosphorus and nitrogen in runoff and subsurface drainage from high and low input pastures grazed by sheep in southern Australia.(Report)
March 1, 2008... Introduction The high rainfall zone (>600mm) of southern Australia is dominated by dryland pasture, and since the mid 1990s, many sheep producers have increased fertiliser inputs and stocking rates to boost production and profitability...

A review of the changes in soil quality and profitability accomplished by sowing rotation crops after cotton in Australian Vertosols from 1970 to 2006.(Report)
March 1, 2008... Introduction Sustainability in any farming system is dependent upon several interacting factors which include climate, soil quality, plant nutrition, management, weed and disease incidence, and economic factors (Greenland and Szabolcs...