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Review Article Pages 26-28
Abstract: The problem of oil-contaminated soils remediation in the Far North regions is considered. The need in the destructed areas restoration is demonstrated. A review of existing conventional methods for the destructed areas restoration consisting of two stages: Technical and biological, is carried out. The main complex of technical remediation activities and the stages of biological remediation are described. Besides, the inefficiency of using the conventional method in the regions of the Far North is estimated.
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Review Article Pages 15-25
Abstract: The rainfall-runoff events and erosion process usually begins with raindrop impact on bare or nearly bare soils with the resulting splash causing the soil particles to become detached and subsequently, overland flow transports these particles towards down slope. During the past decades, the understanding of soil splash mechanisms by raindrops and their erosivity have been actively investigated.
Research Article Pages 8-14
Abstract: Laboratory and computer experiments were conducted to 1) determine the effect of supporting electrolyte on mass distribution coefficient (KD) for predicting P movement at 30- and 60-cm soil depths using HYDRUS-1D and 2) compare the temporal P concentrations as a function of soil type. The results on Candler fine sand at Lake Alfred showed that P contents for the KD estimated with 0.01 M KCl and 0.005 M CaCl2 were 10 to 15% higher than those predicted with a KD value measured with fertilizer mixture.
Research Article Pages 1-7
Abstract: Management practices such as no-till (NT) and nitrogen supply affect soil water and nutrient use, thereby affecting wheat grain yields. The 13C/12C ratio or δ13C, expressed as Δ13C discrimination in photosynthesis and wheat dry matter accumulation and yield may also be affected under different N supply and management practices. We utilised the Δ13C values of wheat dry matter at anthesis and grain sampled at harvest grown under conventional till (CT) and NT, applied with 0 and 75 kg N ha-1, over a 5-year period, to assess the water use and water use efficiency (WUE) under variable seasonal conditions and N supply in a semi-arid rain-fed conditions.