MATRIX Plot-level dataset

<b>Column</b><b>Description</b><b>Units / Format</b><code>PlotID</code>Unique identifier for each forest inventory plot.String<code>LAT</code>Plot latitude (mean across trees, rounded to 1 decimal).Decimal degrees<code>LON</code>Plot longitude (mean across trees, rounded to 1 decimal).Decimal degrees<code>B</code>Plot-level basal area (Σ π·DBH²/4 · TPH).m²/ha<code>N</code>Total stems per hectare with DBH ≥ 0.trees/ha<code>S1</code>Shannon index of DBH-class distribution.Dimensionless<code>S2</code>Simpson index of DBH-class distribution.Dimensionless<code>D1</code>–<code>D11</code>Abundance (TPH) in DBH classes: 10–15, 15–20, …, 55–60, ≥70 cm.trees/haDBH class mapping<code>D1</code>: 10–15 cm; <code>D2</code>: 15–20; <code>D3</code>: 20–25; <code>D4</code>: 25–30; <code>D5</code>: 30–35;<code>D6</code>: 35–40; <code>D7</code>: 40–45; <code>D8</code>: 45–50; <code>D9</code>: 50–55; <code>D10</code>: 55–60; <code>D11</code>: ≥70.Processing &amp; privacyCoordinates are <b>rounded to 0.1°</b> to protect contributor confidentiality.Resulting table contains cleaned, privacy-protected plot-level attributes used in <b>GFI-4D</b>.Access &amp; use<b>Proprietary and confidential.</b> Any use of this dataset <b>requires prior approval</b> through <b>Science-i</b> by creating a new research project: https://science-i.org/For inquiries and coordination, contact <b>Jingjing Liang</b> — <b>[e-mail]</b>.