Soil Heat Flux

dc.contributor.author Sauer, Thomas
dc.contributor.author Horton, Robert
dc.contributor.author Horton, Robert
dc.contributor.department Agronomy
dc.date 2018-02-19T06:07:00.000
dc.date.accessioned 2020-06-29T23:04:09Z
dc.date.available 2020-06-29T23:04:09Z
dc.date.issued 2005-01-01
dc.description.abstract <p>Climatic conditions on the earth’s surface are in part a function of varying physical position (elevation, latitude, and aspect) and the influence of large-scale meteorological forces such as air and ocean currents. The density and architecture of plant canopies in natural systems are directly influenced by these climatic factors. By contrast, for agricultural systems, it is the crop canopies that often influence local microclimate. In both instances, the soil plays an important role in affecting climate near the surface. Properties of the surface soil layer including color, water content, texture, and density affect the partitioning of incident radiation and how much energy is used to evaporate water, warm the air above the ground, or warm the soil.</p> <p>The amount of thermal energy that moves through an area of soil in a unit of time is the soil heat flux or heat flux density. The ability of a soil to conduct heat determines how fast its temperature changes during a day or between seasons. Soil temperature is a key factor affecting the rate of chemical and biological processes in the soil essential to plant growth. Soil heat flux is important in micrometeorology because it effectively couples energy transfer processes at the surface (surface energy balance) with energy transfer processes in the soil (soil thermal regime). This interaction between surface and subsurface energy transfer processes has led to detailed investigations of soil heat flux for a wide variety of agricultural systems.</p>
dc.description.comments <p>This chapter is from Sauer, T.J. and R. Horton. 2005. Soil heat flux. In: J.L. Hatfield and J.M. Baker (Editors), Micrometeorology in agricultural systems. ASA Monograph 47: 131-154. American Society of Agronomy, Madison, Wisconsin. doi: <a href="http://dx.doi.org/10.2134/agronmonogr47.c7" target="_blank">10.2134/agronmonogr47.c7</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/agron_pubs/304/
dc.identifier.articleid 1305
dc.identifier.contextkey 11235626
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath agron_pubs/304
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/4648
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/agron_pubs/304/2005_Horton_SoilHeat.pdf|||Fri Jan 14 23:28:47 UTC 2022
dc.source.uri 10.2134/agronmonogr47.c7
dc.subject.disciplines Agricultural Science
dc.subject.disciplines Climate
dc.subject.disciplines Soil Science
dc.title Soil Heat Flux
dc.type article
dc.type.genre book_chapter
dspace.entity.type Publication
relation.isAuthorOfPublication d3fb0917-6868-417e-9695-a010896cfafa
relation.isOrgUnitOfPublication fdd5c06c-bdbe-469c-a38e-51e664fece7a
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