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Water Retention, Bulk Density, Particle Size, and Thermal and Hydraulic Conductivity of Arable Soils in Interior Alaska

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dc.contributor.author Sharratt, Brenton S.
dc.date.accessioned 2013-08-11T22:09:44Z
dc.date.available 2013-08-11T22:09:44Z
dc.date.issued 1990-10
dc.identifier.citation Sharratt, Brenton S. "Water Retention, Bulk Density, Particle Size, and Thermal and Hydraulic Conductivity of Arable Soils in Interior Alaska." Bulletin 83 (1990). en_US
dc.identifier.uri http://hdl.handle.net/11122/2078
dc.description.abstract The relative proportion of liquid, gas, and solid as constituents of soil depends on factors such as climate, biological activity, and management practices. Therefore, the physical state of soil is a dynamic process, changing with time and position in the profile. Temperature, thermal and hydraulic conductivity, density, and water content are some quantitative properties characterizing the physical state of soil. These properties are important in describing soil processes such as water and heat flow, movement of chemicals, biological activity, and erosion. Water in the soil is subject to a number of forces resulting from the attraction of the soil matrix for water and presence of solutes and gravity. The energy status of water-the sum of these forces-is termed water potential. Processes such as evaporation and plant water uptake are governed by the gradient in water potential in the soil and across the root-soil interface, respectively. The term water potential is more descriptive of the soil water status than water content as movement of water is in response to differences in water potential. en_US
dc.language.iso en_US en_US
dc.publisher School of Agriculture and Land Resources Management, Agricultural and Forestry Experiment Station en_US
dc.subject Water Retention en_US
dc.subject Bulk Density en_US
dc.subject Thermal Conductivity en_US
dc.subject Hydraulic Conductivity en_US
dc.title Water Retention, Bulk Density, Particle Size, and Thermal and Hydraulic Conductivity of Arable Soils in Interior Alaska en_US
dc.type Working Paper en_US


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