Utbredelseskart for Planter i Tre Dimensjoner

Ouren, T. 1974. Distribution maps for plants in three dimensions. Norsk geogr. Tidsskr. 28, 97–102.

A grid map with a ‘level scale’ in the middle of each square is used to indicate the vertical distribution of plants in addition to the horizontal pattern. As an example of the method is shown the three dimensional distribution of the bog myrtle (Myrica gale L.) in a part of Norway.