I have population data matched with polygons and a set of points that I have drawn buffers around. Assuming that the population within each geographical area, i.e. the polygons, is evenly distributed, how do I calculate the population within each buffer? I need to do this in QGIS.
(1KM is the buffer and befolkning_i grkrets is the polygon.)
$area. Then you can calculate the population based on the area of the intersected polygon and your population distribution.