Soil Science · 1977 · 44 citations · 0 references
AgricultureEarth SciencesSoil SciencesSoil PhysicsSoil ScienceSoil-water RelationsField CapacitySoil Hydraulic PropertiesSoil MoistureSoil TextureSoil Water DynamicsWater ContentCoarse-textured SoilsField Capacity AnalysisSandy LoamSoil Water Retention ModelingSoil-water Retention BehaviorTexture-limited Water RetentionWater Retention CapacityWater Retention Properties
A theoretical development is presented that describes water retention in soils underlain by a coarse-textured stratum, and incorporates the physical characteristics of the overlying soil, the depth to the coarse layer, and the coarseness of the underlay. Field data are presented for the Manawatu fine sandy loam, a soil with a coarse layer at 90 cm. For this soil the layering resulted in an additional 5.5 cm of water storage at field capacity, an increase of 31 percent over a similar hypothetical soil with the coarse stratum absent.