Each cell in the matrix represents a potential interaction between an action and an environmental factor, which is then evaluated in terms of and importance .

The Leopold Matrix is excellent for identification but weak for dynamics (it doesn’t show time or cumulative effects). Use it as a screening tool, not a final decision-maker. Always complement with networks, GIS, or expert judgment.

Some Latin American environmental ministries (e.g., Colombia, Mexico, Chile) offer EIA toolkits in Excel that include a Leopold adaptation.

En este ejemplo, los números representan la magnitud del impacto, siendo 1 "sin impacto" y 3 "impacto severo".

| Sheet Name | Content | |------------|---------| | | Title, version, author, instructions | | Matrix | 100+ rows × 90+ columns with conditional formatting | | Totals | Summed M×I per action and per factor | | Chart | Bar/heatmap of top 10 impacts | | Example | Mining project: “Water pollution – Importance 8, Magnitude 7 → 56” |