GXLab / Planning Tools · CER Soil Carbon Method 2021 · ERF Act 2011
Sample Size Calculator
Calculate minimum and optimal soil sample counts per stratum. Import a GXLab KML boundary file to auto-populate CEA and stratum areas. All recommendations follow the Clean Energy Regulator Soil Carbon Method 2021 (ERF Act 2011) and are supported by peer-reviewed literature.
01Import GXLab KML Boundary File (optional)
Export your CEA/stratum boundaries from GXLab as KML. The tool reads each Polygon Placemark, calculates its area from coordinates using the spherical excess formula, and populates the strata table below. Area values in
ExtendedData are used where present; otherwise area is computed from coordinates.
Drop GXLab KML boundary export here
Reads CEA name, stratum name, and polygon area. Supports single-polygon and multi-folder KML.
No file loaded. Enter areas manually below, or import a KML.
02Settings
Mode
Soil variability
03Strata
Strata count
3
| Stratum | Name | Area (ha) | Min samples | Optimal |
|---|
—Methodology & References