/code>: tree diameter (in cm) at breast height (1.3
m)</li>
<li>
<code>h</code>: total tree height (in m)</li>
<li>
<code>dead</code>: integer value indicating whether the tree is dead
(1) or not (NA)</li>
</ul>
<p>Further optional columns are <code>h.blc</code> (height based live
crown, in m), <code>h.bdc</code> (height based dead crown, in m),
<code>v.user</code> (tree volume, in m<span class="math inline">\(^3\)</span>) and <code>w.user</code> (tree
biomass, in Mg).</p>
</div>
<div class="section level4"