Calculating forest cover for specific points in QGIS requires a two-step process since a single point has no area.

Once you have the count of forest pixels, you can use the Field Calculator to determine the percentage of forest cover within each buffer using a simple formula:

(Number of Forest Pixels * Pixel Area) / Total Buffer Area * 100

The most efficient way in QGIS is to create a buffer around each point and then use the Zonal Histogram tool.

This process calculates the exact number of pixels for each land cover type within a defined radius of your points, which you can then easily convert to percentages.

Data preparations:

Step 1: Create Buffers Around Your Points

First, you need to define the analysis area around each camera trap. A circular buffer is the standard method.

Step 2: Calculate Pixel Counts with Zonal Histogram

This is the core step. The Zonal Histogram tool counts the number of pixels for each unique value in your raster layer that falls within each buffer polygon.

Step 3: Calculate Percentages with Field Calculator

Your output layer from the previous step now has the raw pixel counts for each land cover type. The final step is to convert these counts into percentages.

You will have an attribute table where each row represents a camera trap location, and the columns show the percentage of each land cover type within your specified buffer distance.