Forest maps, their development and present accuracy
2001
Dousek, F. (Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Lesnicka a Drevarska Fakulta)
Forest Act No. 289/1995 sets down the geodetical accuracy of plotting permanent units of the spatial division of forests on forest maps 0.0004 x M where M is the scale number of a map. For the basic forest map of 1:5,000, it means 2m. Cadastral or (derived) state maps at a scale of 1:5,000 are a mandatory map background for the preparation and creation of forest maps. In many cases, however, the accuracy of the maps is lower than 2 m. With respect to errors occurring in forest mapping, errors resulting from the insufficient stabilization of boundaries of the permanent units of forest division as well as overlapping the boundaries by tree crowns in using methods of photogrammetry, the fulfilment of the law requirements appears to be rather problematic.
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