prepare_species

Prepares the species table, by checking whether the input information is consistent.

Provides a flexible and easy-to-use interface for the Physiological Processes Predicting Growth (3-PG) model written in Fortran. The r3PG serves as a flexible and easy-to-use interface for the 3-PGpjs (monospecific, evenaged and evergreen forests) described in Landsberg & Waring (1997) <doi:10.1016/S0378-1127(97)00026-1> and the 3-PGmix (deciduous, uneven-aged or mixed-species forests) described in Forrester & Tang (2016) <doi:10.1016/j.ecolmodel.2015.07.010>.

Volodymyr Trotsiuk

r3PG

Simulating Forest Growth using the 3-PG Model

Florian Hartig

David Forrester

Ramiro Silveyra Gonzalez

prepare_species function

<dl><dt>species</dt>
<dd>table containing the information about species level data. Each row corresponds to one species/cohort.<ul>
<li>species: species or cohort id/name. It must be consistent with species names in <code>thinning</code>, <code>parameters</code> and <code>sizeDist</code> tables.</li>
<li>planted: year and month indicating when species was planted. Provided in form of year-month. E.g. "2000-01".</li>
<li>fertility: soil fertility for a given species. Range from 0 to 1.</li>
<li>stems_n: number of trees per ha.</li>
<li>biom_stem: stem biomass for a given species (Mg/ha).</li>
<li>biom_root: root biomass for a given species (Mg/ha).</li>
<li>biom_foliage: initial foliage biomass (Mg/ha). If this is a leafless period, provide the spring foliage biomass.</li>
</ul></dd></dl>

Arguments

Check the species data for consistency — prepare_species

<dl>

<dt>species</dt>
<dd>table containing the information about species level data. Each row corresponds to one species/cohort.<ul>
<li>species: species or cohort id/name. It must be consistent with species names in <code>thinning</code>, <code>parameters</code> and <code>sizeDist</code> tables.</li>
<li>planted: year and month indicating when species was planted. Provided in form of year-month. E.g. "2000-01".</li>
<li>fertility: soil fertility for a given species. Range from 0 to 1.</li>
<li>stems_n: number of trees per ha.</li>
<li>biom_stem: stem biomass for a given species (Mg/ha).</li>
<li>biom_root: root biomass for a given species (Mg/ha).</li>
<li>biom_foliage: initial foliage biomass (Mg/ha). If this is a leafless period, provide the spring foliage biomass.</li>
</ul></dd>

</dl>

prepare_species: Check the species data for consistency

Description

Usage

Value

Arguments

Details

See Also

Examples