[GRASS-user] agricultural land

[Markus Neteler]

2009/3/30 Martin Schweizer <schweizermartin at students.unibe.ch>:
> Hi
>
> I have a little question: I have a point-vector layer where the points
> represents cities. For each city I know the population and I have
> calculated the dimension of the agricultural land that has to be around
> these cities to nourish the people (in square meters). Now I have to
> display the agricultural area around the cities. The problem is, that
> the cities are in a hilly landscape. The Question is now: How can I
> calculate and display the agricultural land around my points (cities) as
> a function of the topography?

An idea might be to split elevation into classes and then calculate
statistics on a per-class base.

Markus