hydrologic soil group

hydrologic soil group

One of a classification of soils that groups them according to their water infiltration characteristics and their potential runoff characteristics.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
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The watershed is in the hydrologic soil group D as per the soil details.
The CN technique quantifies the infiltration capacity area based on land use, soil and land cover type, and hydrologic soil group [37].
The hydrologic soil group (HSG) defines the curve number (CN) which is input of the SCS-CN method.
For the determination of the CN parameter, each methodological step used is outlined in Figure 2, including the hydrologic soil group approach and the LULC data processing of the present and future scenarios, based on the City Master Plan of Caraguatatuba Municipality (Caraguatatuba City Council CCC 2011).
The hydrologic soil group (HSG) method defines a particular curve number (CN) that can be used in the SCS method.
The soil characteristics evaluated in the research included cation exchange capacity; hydrologic soil group; sand, silt, clay, and organic matter content; saturated hydraulic conductivity; depth to water table; septic suitability; soil surface acidity; drainage class; and flooding frequency.
Soil curve numbers were selected assuming that pervious land cover for a given residence was a "lawn in good condition" (USDA 1996), and the hydrologic soil group designations were "D" for Eden and "B" for the Switzerland and fine-silty family soils.
The hydrologic soil group for the area under meadow is B and that for the row crop is C.
For each polygon associated with the 1: 24,000-scale soil survey maps, the following attributes were recorded: permeability, depth to high water table, hydrologic soil group, and depth to bedrock.
The curve number is a function of land use and Hydrologic Soil Group (HSG).
Source factors are soil test P, P application rate, nutrient application method, and grazing animals, whereas transport factors are underground outlets, erosion rate, hydrologic soil group, field slope, P application distance to water, and filter strip width.
The boundary can then be used to clip the soils layer so that average slope and hydrologic soil group can be determined.
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