منابع مشابه
Measuring Soil Water Content with Ground Penetrating Radar: A Review
termines the diurnal evolution of the atmospheric boundary layer (Callies et al., 1998). Currently, there is a need We present a comprehensive review of methods to measure soil to establish and quantify the contribution of soil water water content with ground penetrating radar (GPR). We distinguish content–regulated land–atmosphere coupling to regional four methodologies: soil water content det...
متن کاملA Variable-Volume TDR Probe for Measuring Water Content in Large Soil Volumes
concluded that coaxial probe design was superior to two-wire probes with a balancing transformer. Management of favorable conditions for plant growth within parTopp and Davis (1985) extended measurement capatially wet soil volumes under drip irrigation presents a measurement bilities from a small volume (point) to multiple depths challenge. Typically, soil water status is determined from a sing...
متن کاملResponse of a New Soil Water Sensor to Variable Soil, Water Content, and Temperature
Thomas (1966) and later developed by Dean et al. (1987), whose work has lead to commercial soil water The success of time domain reflectometry (TDR) has led to the measuring instruments (Evett and Steiner, 1995; Paltidevelopment of other instruments that use the soil dielectric constant as the basis for determining volumetric soil water content. An example neanu and Starr, 1997). Readers are re...
متن کاملLaboratory Evaluation of the Dual-Probe Heat-Pulse Method for Measuring Soil Water Content
to evaluate the level of accuracy and precision that can be achieved with the DPHP method. Tarara and Ham The dual-probe heat-pulse (DPHP) method provides a means of (1997) conducted a laboratory experiment in which estimating volumetric soil water content ( ) and change in volumetric water content ( ) from measurements of volumetric heat capacity. DPHP-based estimates were compared with values...
متن کاملIntermediate-Scale Tests of the Gas-Phase Partitioning Tracer Method for Measuring Soil-Water Content
Turfgrass Research. The lysimeter is 4.0 m deep, 2.5 m in diameter, and contains a homogeneous packing of Vinton fine Experiments were conducted in a well-instrumented weighing lysand (sandy, mixed, thermic Typic Torrifluvents) with a mean simeter (2.5 by 4 m) to evaluate the efficacy of the gas-phase-partibulk density of 1.38 Mg m 3 and porosity of 0.47. Details tioning tracer method for measu...
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ژورنال
عنوان ژورنال: HortTechnology
سال: 2011
ISSN: 1063-0198,1943-7714
DOI: 10.21273/horttech.21.3.293