Field-Scale Electrical Conductivity Mapping for Delineating Soil Condition
نویسندگان
چکیده
منابع مشابه
Field-Scale Electrical Conductivity Mapping for Delineating Soil Condition
water resources and enhancing soil quality (Wallace, 1994). An essential first step to the successful implemenTraditional sampling methods are inadequate for assessing the tation of site-specific management is the evaluation of interrelated physical, chemical, and biological soil properties responsible for variations in agronomic yield and ecological potentials across new technologies at the fi...
متن کاملMapping Depth to Argillic Soil Horizons Using Apparent Electrical Conductivity
Maps of apparent electrical conductivity (ECa) of the soil profile are widely used in precision agriculture. A number of ECa sensors are commercially available, each with a unique response function (i.e., the relative contribution of soil at each depth to the integrated ECa reading). Our past research estimated depth to an argillic horizon (i.e., topsoil depth, TD) on claypan soils by fitting e...
متن کاملEffect of Soil Water on Apparent Soil Electrical Conductivity and Texture Relationships in a Dryland Field
M.C. McCutcheon; H.J. Farahani; J.D. Stednick; G.W. Buchleiter; T.R. Green Northern Colorado Water Conservancy District (NCWCD), 220 Water Ave., Berthoud, CO 80513, USA; e-mail: [email protected] International Center for Agricultural Research in Dry Areas (ICARDA), P.O.Box 5466, Aleppo, Syria; e-mail of corresponding author: [email protected] Forestry, Range, and Watershed Stewardship De...
متن کاملApparent soil electrical conductivity measurements in agriculture
The field-scale application of apparent soil electrical conductivity (ECa) to agriculture has its origin in the measurement of soil salinity, which is an arid-zone problem associated with irrigated agricultural land and with areas having shallow water tables. Apparent soil electrical conductivity is influenced by a combination of physico-chemical properties including soluble salts, clay content...
متن کاملevaluating the linear model of dielectric constant-electrical conductivity for estimation of soil solution electrical conductivity with tdr
abstract time domain reflectometry (tdr) is a widely used method for measuring the dielectric constant (ka) and bulk electrical conductivity (σa) in soils. the tdr-measured σa and ka can be used to calculate the soil solution electrical conductivity, (σp). a theoretical model describing a linear relationship between bulk electrical conductivity, σa, and dielectric constant, ka, in moist soil wa...
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ژورنال
عنوان ژورنال: Soil Science Society of America Journal
سال: 2001
ISSN: 0361-5995
DOI: 10.2136/sssaj2001.1829