Premium
On using the effective contact angle and the water drop penetration time for classification of water repellency in dune soils
Author(s) -
Wessel A. T.
Publication year - 1988
Publication title -
earth surface processes and landforms
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.294
H-Index - 127
eISSN - 1096-9837
pISSN - 0197-9337
DOI - 10.1002/esp.3290130609
Subject(s) - surface runoff , soil water , penetration (warfare) , infiltration (hvac) , drop (telecommunication) , water repellent , environmental science , geotechnical engineering , water erosion , contact angle , soil science , geology , hydrology (agriculture) , materials science , composite material , engineering , ecology , telecommunications , operations research , biology
Sandy soils are often water repellent when dry. In sloping areas this may result in surface runoff and erosion. Water repellency in soils can be classified with the solid‐liquid contact angle which is difficult to determine. Another method is the water drop penetration time. This method is not only easier to apply but provides a more useful scale for classifying water repellent soils. Moreover, it is directly related to erosion hazard because runoff depends on the time required for the infiltration of rain drops. A close relationship was found between the contact angle and the water drop penetration time in dune soils along the coast of the Netherlands.