Woody vegetation mapping

This data set relate effects of soil, grazing intensity and burning treatments on the establishment and subsequent growth of woody plant in prairie communties.The locations of woody vegetation are marked on a mylar overlay on an aerial photograph of the area being surveyed with an unique symbol for each species and a numer for the size. For trees, size is the height to the nearest meter. For shrubs, the number of stems is recorded as a measure of size if the number is less than 25. For large patches of shrubs, the diameter is recorded and the shape of the patch is drawn on the overlay. Two forms of the data are archived. One of them is the actual mylar sheets. The other form is an electronic ascii data that is stored in the subdirectory woody on the lter Novell server. Files are named according to the name of the watershed and year the data was collected (e.g. 004b86.one = first data file for 004b in 1986). For 1986, the files also exist as coverages in PC ARC/INFO files