期刊名称：GI_FORUM - Journal for Geographic Information Science
电子版ISSN：2308-1708
出版年度：2013
页码：540-543
DOI：10.1553/giscience2013s540
出版社：ÖAW Verlag, Wien
摘要：Riparian forests are sensitive habitats with a rich biodiversity and an important function ascorridors for movement of wildlife. In Europe, many of these precious habitats areprotected sites within the Natura 2000 network, where monitoring results have to bereported every six years. Satellite imagery provides key benefits for monitoring natureprotection areas where political borders, rough terrain and large and/or complex monitoringareas handicap a harmonized assessment (VANDEN BORRE et al. 2011). NAGENDRA et al. (inpress) name four critical aspects of assessment: changes in habitat extent and landscapestructure, habitat degradation, alteration in biodiversity and tracking of pressures andthreats within and outside protected areas. As silviculture inside Natura 2000 sites caninfluence these aspects, a targeted monitoring is needed. For this purpose, an Earthobservation-based workflow has been developed within the MS.MONINA project(http://www.ms-monina.eu) to monitor riparian forests in the Natura 2000 site Salzachauen.It includes (1) a habitat delineation based on visual interpretation and semi-automatedobject-based image analysis and (2) an assessment of habitat quality using structuralindicators (cf. STRASSER et al. in review). In this paper, we focus on the second part of thisworkflow. We used landscape metrics to assess the overall habitat quality of the entire areaand differentiated between three subregions with a different degree of silvicultural intensityto reveal potential influence of forest management on the habitat quality.
