Through a field study, we learned that the density of a bird species in the forest was related to the distance to forest edge: ln(density) = 1.89*(distance to edge) + 0.34
Now, for any forest polygon, how can we estimate the number of birds in it based on above equation?
I thought of using raster approach, dividing the forest into many grids, calculating, and summing up.
But as the forest polygons are highly irregular in shape, there are many "incomplete" polygons. The size of the grid cell and the origin of the grid system influence the output as well. I wonder if there is any approach to this problem using polygons directly?
أكثر...
Now, for any forest polygon, how can we estimate the number of birds in it based on above equation?
I thought of using raster approach, dividing the forest into many grids, calculating, and summing up.
But as the forest polygons are highly irregular in shape, there are many "incomplete" polygons. The size of the grid cell and the origin of the grid system influence the output as well. I wonder if there is any approach to this problem using polygons directly?
أكثر...