soil-water Articles

  • Composting on the New York Highline

    Friends of the High Line will be taking their composting program to a new level using cutting-edge technology to compost in only 14 days. The Rocket composter technology allows for a continuous process of feeding it daily while constantly aerating the mass inside the vessel, producing high enough temperatures to kill pathogens.  Friends of the High Line ...


    By Tidy Planet Limited

  • Soil & water remediation - Burntisland

    Caustic Soda Soil & Water Remediation & Demolition Works Client: Alcan Chemicals Ltd. Consultant; RPS Plc Challenge: Address contamination including elevated pH levels up to 14 pH arising from the use of caustic soda within the site processes for producing allumina, hydrocarbon contaminated material from ...


    By Soilutions Ltd

  • Soil water thermal liquid diffusivity

    The background of the thermal liquid diffusivity (TLD) concept was reviewed. Application of TLD to matric-head-based equations for water flow when a thermal gradient is present have been contradictory to the original development by Philip and de Vries (PdV). Beginning from Darcy's law for liquid water transport and Fick's law for water vapor transport was the foundational and well-known approach ...

  • Soil water content and soil disaggregation by disking affects PM10 emissions

    Row crop agriculture in California's San Joaquin Valley is a major contributor of particulate matter <10 µm in aerodynamic diameter (PM10). The California Air Resources Board uses fixed PM10 emission values for various tillage operations to monitor and design attainment strategies. However, fixed emission values do not reflect emissions produced by a single implement operating under different ...

  • Measurement of Steady-State Soil Water Flux across a Soil Horizon Interface

    Soil horizon interfaces have been shown to be focal points for localized, three-dimensional redistribution of water and solutes in field soils. Therefore, understanding of the physics of water flow and transport in layered soils requires experimental observations of the magnitude and variability of local soil water flux under a variety of well-defined boundary conditions. We developed a time ...

  • Bimodal and multimodal descriptions of soil-water characteristic curves for structural soils

    In the last decades several approaches have been developed to describe bimodal or multimodal soil-water characteristic curves (SWCCs). Unfortunately, most of these models were derived empirically. In the presented study, physically based bimodal and multimodal SWCC functions have been developed for structural soils. The model involved two or more continual pore series; the probability density ...


    By IWA Publishing

  • Water Quality, Soil and Managing Irrigation of Crops

    The book entitled Water Quality, Soil and Managing Irrigation of Crops comprises three sections, specifically: Reuse Water Quality, Soil and Pollution which comprises five technical chapters, Managing Irrigation of Crops with four, and Examples of Irrigation Systems three technical chapters, all presented by the respective authors in their own fields of expertise. This text should be of interest ...


    By IWA Publishing

  • Delta Remediation BioLogix Soil & Water Remediation

    Delta Remediation’s BioLogix Solution is a consortium of naturally-occurring microbes selected for their safety, and effectiveness in removing a wide range of organic chemicals from the environment. BioLogix contains strains from the Pseudomonas genus, which are known to have the most aggressive metabolic rate, and the capability of degrading the full suite of constituents found in ...


    By DELTA REMEDIATION INC

  • Soil water repellency development in amended sand rootzones

    Particulate organic matter (OM) and surface area–limited sands are associated with soil water repellency (SWR) in turfgrass systems. The increasing ubiquity of amended sand rootzones warrants investigation of factors contributing to SWR. Our objective was to identify how amendment type and/or inclusion rate affect rootzone SWR over a range of irrigation regimes. A U.S. Golf Association–specified ...

  • Effects of estimating soil hydraulic properties and root growth factor on soil water balance and crop production

    Accurate simulation of plant growth depends not only on plant parameters, but also on soil parameters. Although there is uncertainty in measured soil parameters and root distributions, their effects on simulated plant growth have been much less studied. This study evaluates the simulated responses of six crops, wheat (Triticum aestivum L.), maize (Zea mays L.), barley (Hordeum vulgare L.), ...

  • Water, soil and nutrient losses caused by Wenchuan Earthquake: a case study in Pengzhou

    Wenchuan Earthquake triggered a large number of geological hazards, dramatically stimulating soil erosion. This study was carried out in Pengzhou County, Sichuan Province. By comparison of sediment, runoff and nutrient losses in earthquake-damaged forests (EF) and unaffected forests (UF), the actual status of soil erosion after the Wenchuan Earthquake was investigated by runoff plots. Results ...


    By IWA Publishing

  • Soil water movement under a drip irrigation double-point source

    Particularly in dry regions, the scarcity of high-quality fresh water has heightened the importance of urban runoff water re-use, leading as well to the improvement of water use efficiency through the surface drip irrigation method. Given the limited research on wetting front migration under a surface drip irrigation emitter, soil water movement under a double-point-source irrigation emitter ...


    By IWA Publishing

  • The role of natural purified humic acids in modifying Mercury accessibility in water and soil

    Received for publication April 17, 2008. Contamination of soils with mercury can be a serious problem. It can be mobilized or stabilized by humic substances (HS) containing binding sites with reduced sulfur that can have different binding capacities for CH3Hg+ and for Hg2+. In this work we investigated the influence of different humic acids (HAs, extracted from lignite, compost, and forest soil) ...

  • Pore water sampling in acid sulfate soils: a new peeper method

    Received for publication April 9, 2009. This study describes the design, deployment, and application of a modified equilibration dialysis device (peeper) optimized for sampling pore waters in acid sulfate soils (ASS). The modified design overcomes the limitations of traditional-style peepers, when sampling firm ASS materials over relatively large depth intervals. The new peeper device uses ...

  • Analytical solution for soil water redistribution during evaporation process

    Simulating the dynamics of soil water content and modeling soil water evaporation are critical for many environmental and agricultural strategies. The present study aims to develop an analytical solution to simulate soil water redistribution during the evaporation process. This analytical solution was derived utilizing an exponential function to describe the relation of hydraulic conductivity ...


    By IWA Publishing

  • Determination of soil‐water sorption coefficients of volatile methyl siloxanes

    The sorption behaviors of four cyclic and linear volatile methyl siloxane (VMS) compounds between water and organic matter in three United Kingdom soils were studied by a batch equilibrium method using 13C‐enriched sorbates. Sorption and desorption kinetics and isotherms were determined for octamethylcyclotetrasiloxane (D4), decamethylcyclopentasiloxane (D5), octamethyltrisiloxane (L3) and ...


    By John Wiley & Sons, Ltd.

  • Soil and Water Benefits: Composting Reduces Fuel and Labor Costs on Family Farms

     Composting Reduces Fuel and Labor Costs on Family Farms Jeff and Pam Riesgraf — who manage a certified organic dairy and crop operation near Jordan, Minnesota — began composting manure from their dairy herd in 1993. They had two major objectives. First, they wanted to reduce weed seeds naturally present in manure. At the same time, they understood the need to protect water quality by ...


    By BioCycle Magazine

  • The impact of climate change and soil salinity in irrigation water demand on the Gaza Strip

    The presented work analyzes the potential impacts of the temperature, precipitation changes and water salinity on agricultural water demand. The study was carried out on five representative orchard crops (olive, palm, grapes, citrus and guava) that cover around 83% of the orchard farms in Gaza Strip. To achieve this goal, CropWat modeling software version 8.0 is used to calculate the ...


    By IWA Publishing

  • Estimating the impact of seawater on the production of soil water-extractable organic carbon

    The production of water-extractable organic carbon (WEOC) during arctic coastal erosion and permafrost degradation may contribute significantly to C fluxes under warming conditions, but it remains difficult to quantify. A tundra soil collected near Barrow, AK, was selected to evaluate the effects of soil pretreatments (oven drying vs. freeze drying) as well as extraction solutions (pure water vs. ...

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