Scattered fruit survey (remote sensing)

Description

The data come from a nationwide survey of orchard trees using photogrammetric aerial images with a spatial resolution of 40 cm, i.e. 6.25 points/m2 (flight 2015-2018). Trees with a height between 3 m and 20 m are addressed as scattered fruit trees according to a certain classification scheme and taking into account the other parameters. Not all trees were rated with the same level of trustworthiness. Points of tree classes 3-5 are shown, where the probability that they are scattered fruit trees is comparatively high. Each point represents a single tree. The classification quality was determined on the basis of a validation. Here, the orchard trees were mapped on 13 areas in the terrain. In the classification, 79.4% of the orchard trees mapped in the field were recorded, i.e. 20.6% of the orchard trees, especially young trees, could not be recognized as such by the classification algorithms or were excluded from the classification by the set parameter thresholds. For classes 3-5, 76,0 % of the trees were correctly classified as scattered fruit trees. 24.0 % of the trees detected by remote sensing were falsely classified as scattered fruit trees. For more information on the survey and evaluation, see Borngräber et al. 2020 (BORNGRABER, S., A. KRISMANN & K. SCHMIEDER (2020): Determination of the orchards in Baden-Württemberg by automated remote sensing methods. – Nature Conservation and Landscape Management Baden-Württemberg, Volume 81 (Online-First) For 0.3% of the land area (96 tiles with 1 km2 each within the national border) no evaluation was carried out. The validity of the data is limited due to the methodology used and requires validation in the field. These are not results of a mapping exercise.

Resources

Name Format Description Link
0 https://rips-datenlink.lubw.de/UDO_download/Streuobsterhebung_Fernerkundung.zip
0 https://rips-gdi.lubw.baden-wuerttemberg.de/arcgis/services/wms/Streuobsterhebung_Fernerkundung/MapServer/WMSServer?request=GetCapabilities&service=WMS
0 https://rips-gdi.lubw.baden-wuerttemberg.de/arcgis/services/wfs/Streuobsterhebung_Fernerkundung/MapServer/WFSServer?request=GetCapabilities&service=WFS

Tags

  • fernerkundung
  • naturschutz
  • landschaftsplanung
  • oac:-665

Topics

  • ENVI

Categories