soil_conductivity

The function estimates soil thermal conductivity (W m-1 K-1) using the methods of deVries1963;textualTrenchR.

Tools for translating environmental change into organismal response. Microclimate models to vertically scale weather station data to organismal heights. The biophysical modeling tools include both general models for heat flows and specific models to predict body temperatures for a variety of ectothermic taxa. Additional functions model and temporally partition air and soil temperatures and solar radiation. Utility functions estimate the organismal and environmental parameters needed for biophysical ecology. 'TrenchR' focuses on relatively simple and modular functions so users can create transparent and flexible biophysical models. Many functions are derived from Gates (1980) <doi:10.1007/978-1-4612-6024-0> and Campbell and Norman (1988) <isbn:9780387949376>.

Lauren Buckley

TrenchR

Tools for Microclimate and Biophysical Ecology

Bryan Briones Ortiz

Isaac Caruso

Aji John

Ofir Levy

Abigail Meyer

Eric Riddell

Yutaro Sakairi

Juniper Simonis

Brian Helmuth

soil_conductivity function

<dl><dt>x</dt>
<dd><code>numeric</code> vector of volume fractions of soil constituents (e.g., clay, quartz, minerals other than quartz, organic matter, water, air). The volume fractions should sum to 1. Note that <code>x</code> and <code>lambda</code> values in the example correspond to these soil constituents.</dd>
<dt>lambda</dt>
<dd><code>numeric</code> vector of the thermal conductivities (W m-1 K-1) of the soil constituents.</dd>
<dt>g_a</dt>
<dd><code>numeric</code> shape factor on soil particles. The soil particles are assumed to be ellipsoids with axes <code>g_a</code>, <code>g_b</code>, and <code>g_c</code>, where <code>g_a + g_b + g_c = 1</code> and <code>g_a = g_b</code>. deVries1952;textualTrenchR suggests <code>g_a = g_b = 0.125</code>.</dd></dl>

Arguments

Author

Soil Thermal Conductivity — soil_conductivity

<dl>

<dt>x</dt>
<dd><code>numeric</code> vector of volume fractions of soil constituents (e.g., clay, quartz, minerals other than quartz, organic matter, water, air). The volume fractions should sum to 1. Note that <code>x</code> and <code>lambda</code> values in the example correspond to these soil constituents.</dd>


<dt>lambda</dt>
<dd><code>numeric</code> vector of the thermal conductivities (W m-1 K-1) of the soil constituents.</dd>


<dt>g_a</dt>
<dd><code>numeric</code> shape factor on soil particles. The soil particles are assumed to be ellipsoids with axes <code>g_a</code>, <code>g_b</code>, and <code>g_c</code>, where <code>g_a + g_b + g_c = 1</code> and <code>g_a = g_b</code>. deVries1952;textualTrenchR suggests <code>g_a = g_b = 0.125</code>.</dd>

</dl>

Soil Thermal Conductivity

soil_conductivity: Soil Thermal Conductivity

Description

Usage

Value

Arguments

Author

References

See Also

Examples