soil water conductivity Articles
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Free Software Lets You Use HydraProbe to Determine Soil Water Retention Curve
The Soil Water Characteristics software is a hydraulic properties calculator, developed by the US Department of Agriculture and Washington State University. It estimates soil water tension, conductivity and water holding capability based on the soil texture, organic matter, gravel content, salinity, and compaction. The Soil Water Characteristics software is a hydraulic ...
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Improving the accuracy of a grid-based distributed hydrological model using slope and river length corrections in a large river basin: case Mekong
The effect of the grid cell size on a distributed hydrological model performance was investigated using five grid resolutions (1, 5, 10, 20 and 50 km) in a model for the Mekong Basin in Southeast Asia. Two main factors affecting computation results and related to topography and the grid cell size were identified: the terrain slope decreases and the computed drainage network gets shorter with ...
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Modelling of the impact of future climate changes on salt accumulation in paddocks of different soil types due to recycled water irrigation
Recycled water contains elevated amounts of salt compared with irrigation water originating from surface water sources. As such, recycled water, if used for irrigation over a long period of time may increase the root zone salinity. However, the phenomenon depends on variability of climatic condition and soil characteristics. In this study, a salt transport model, HYDRUS 1D, was used to ...
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CEPHaS Project Briefing - GP2 Data Logger - Case Study
Recent Activities in Soil Physics The CEPHaS project is a joint undertaking between colleagues in Zambia, Zimbabwe, Malawi and the UK to strengthen our shared capacity to study how conservation agriculture practices affect the behaviour of water in soil, crop and groundwater systems. Key to this is the use of new methods to study soil water, both in the field and the laboratory. The University ...
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Time lapse resistivity/IP survey case study
Changes in underground electric resistivity is typically resulted by the variations in groundwater conduction and soil water content. Monitoring this variation will help operator gain a better understanding of the underground water distribution over time. This may facilitates operators monitor abnormal underground or structural behaviour. Time lapse resistivity survey is therefore very useful ...
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HydraProbe selected to be used in Canada’s RISMA Network for Agricultural Monitoring
A new study published in the Soil Science Society of America Journal investigated the field performance of 5 soil moisture instruments in heavy clay soils. The HydraProbe outperformed TDR and capacitance-based soil sensors in terms of stability and accuracy in Manitoba’s agricultural soil. Much of soil in the Canadian Prairie farmland is vertisolic. A new study published in the Soil ...
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Watershed modeling to assess the sensitivity of streamflow, nutrient, and sediment loads to potential climate change and urban development in 20 U.S. watersheds.
Watershed modeling was conducted in 20 large, U.S. watersheds to characterize the sensitivity of streamflow, nutrient (nitrogen and phosphorus), and sediment loading to a range of plausible mid-21st century climate change and urban development scenarios. The study also provides an improved understanding of methodological challenges associated with integrating existing tools (e.g., climate models, ...
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Sources of Nitrate in Snowmelt Discharge: Evidence From Water Chemistry and Stable Isotopes of Nitrate
To determine whether NO3−, concentration pulses in surface water in early spring snowmelt discharge are due to atmospheric NO3−,, we analyzed stream δ,15N-NO3−, and δ,18O-NO3−, values between February and June of 2001 and 2002 and compared them to those of throughfall, bulk precipitation, snow, and groundwater. Stream total Al, DOC and Si concentrations were used ...
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Staple Fiber Geotextile Fabric for Soil Stabilization of Dam Project in Philippine - Case study
CASE STUDY Location : Philippine Product(s) : Staple Fiber Geotextile Fabric Application : Dam Project Philippine customer inspected the dam, many cracks and subsidence were found in the embankment. The cracks are horizontal and vertical. The collapse was caused by soil erosion and cracks, and it was found on both upstream and downstream slopes and wave crests. Insects and other animals ...
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Introducing LSPECS – Web-Based Integrated Field Program Management
LSPECS is web-based software designed to simplify management of environmental field sampling programs. LSPECS represents a step-change in field sampling program communication and administration at all stages: Design & schedule sampling plans individually, or as part of a wider program Create a program team with variable permissions to access to program details Delegate & receive ...
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