[Qgis-user] Split polygon using area and DEM

[Wesley Roberts]

Hi Victor,

Many many thanks for your help on this matter. I have generated a
harvesting plan using contours and buffers in a similar way to the method
you proposed. I will however use your method in the future as it appears to
be a little more semi-automated when compared to my approach.

A quick question, if I use your method and want to split up each contour
such that its size is around 5 ha, would I be able to do this using an
'out-of-the-box' module in sexxtante?

Once again, many thanks!
Wesley


On Thu, Jan 31, 2013 at 10:30 PM, Victor Olaya <volayaf at gmail.com> wrote:

> Wesley
>
> I took sometime to write a small tutorial about how to solve this
> problem you propose using QGIS and SEXTANTE. You can find it in [1]. I
> hope you find it useful (and that I understood your problem
> correctly...)
>
> Regards
>
> Victor
>
> [1]
> http://qgissextante.blogspot.fr/2013/01/dividing-in-equal-area-zones.html
>
>
> 2013/1/30 Wesley Roberts <jwesroberts at gmail.com>:
> > Dear Colleagues,
> >
> > I am tasked with defining harvesting strips for a community forest in
> Zambia
> > and am struggling to find a suitable solution. Our approach uses the coop
> > and shelter belt (harvest alternative strips of forest) method and
> requires
> > that our area be split into 5 ha "blocks". I understand how to make a
> grid
> > of 5 ha blocks, however, we have a topography issue. Our site is located
> in
> > some pretty hilly areas so we want to harvest along contours to avoid
> soil
> > erosion issues. I am looking for a quantitative approach to portioning
> our
> > site up into 5ha blocks that run along contours. I have access to QGIS
> and R
> > as well as any other FOSS available. Do any of the Qgis users have a
> > suggestion with regards to a suitable approach?
> >
> > Many thanks,
> > Wesley
> >
> >
> > --
> > Dr Wesley Roberts
> > jwesroberts at gmail.com
> > Cell: +27(0)83 5355 646
> > skype: roberts-w
> >
> > _______________________________________________
> > Qgis-user mailing list
> > Qgis-user at lists.osgeo.org
> > http://lists.osgeo.org/mailman/listinfo/qgis-user
> >
>



-- 
Dr Wesley Roberts
jwesroberts at gmail.com
Cell: +27(0)83 5355 646
skype: roberts-w
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