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Exhibit 4 – Plot/Tree Data Inspection Form
| Plot/Tree Data Inspection Form |
| A |
| B |
| C |
Field Name
Accuracy Standard
Lines # of Errors Total (A x B) Deduct (A x C) *
| Header Information |
| No Error |
| Unacceptable |
| 1 |
| Plot Number |
| No Error |
| 10 |
| 1 |
| Latitude/Longitude (if requested in RFQ) |
| ±10 meters |
| 10 |
| Tag ID *1 |
| No Error on live; ±1 on dead |
| 20 |
| Tree Status (L/D) *2 |
| No Error |
| 20 |
| Tree Species *1 |
| No Error |
| 20 |
| Tree Count (only on trees <5” dbh) *6 |
| ± 25% on seedlings; ±1 sapling |
| 10 |
| Height (site tree only) *3 *5 |
| ± 5% |
| 50 |
| Tree Age (site tree only) *3 |
| ± 10% |
| 50 |
Subtotal for Tree Data Sheet
Plot Score: (Deduct Points / Total Points) X 100 = percent error
Inspectors signature:
Date:
Bold entries are only need to be recorded once per stand. No points will be assigned on plots where a site tree has not been recorded.
*1 All data lines (variable and fixed plot) *2 Variable plot only *3 Only one site tree per stand is required *4 All trees must be within one of the appropriate size classes (see dbh section or as modified in the RFQ). If more than 3 trees are outside actual dbh class, then all trees after are considered error. DBH recorded outside acceptable range is double error.
*5 Site index trees to the nearest foot ± 5%; Dead trees (snags) will have no accuracy standard (ocular estimate only) *6 Fixed plot only
Department of Agriculture Forest Service