Biotope Mapping

Biotope mapping helps to survey natural landscape units and evaluate them concerning their habitat characteristics. Following is an example of a reed zone classification using AVIS data.

The analyses are solely based on the spectral remotely sensed data without using any further in situ information. Accordingly, the allocated classes were chosen from the pure spectral information of the data.

Fig. 1: Reed zone in optimized color representation (left) and calculated CAI
(Chlorophyll-Absorptions-Integral). The CAI ist an indicator of plant vigor

Fig. 2: Spectral classes that could be differentiated with the help of the CAI. Dense vegetation and thus a high plant vigor is characterised by a steep increase in reflectance to the near infrared, while a sparse vegetation cover and thus low plant vigor is identified by a slow increase of the reflectance values.

The figures are taken from a reed zone classification that was done for the Niedersächsisches Landesamtes für Ökologie (NLÖ).