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Datenerhebung-Waldinventur
Waldinventur mittels Drohnenbefliegung und
Terrestrial Laser Scanning
Kastner Maximilian & Slope Research Team
Institut für Forsttechnik
Universität für Bodenkultur Wien
9 Juni 2016
Demonstrationsfläche
Annaberg im Lammertal
• Salzburg- Österreich
• Österreichische
Bundesforste
• Bergwald
• Typisches Seilgelände
• Montaner Fichtenwald
Quelle: Google Earth
Review Meeting
19 – 21 January Corcaigh
UAV-Befliegung
Orientierung im Gelände
• Orientierung mittels Passpunkten
• Einmessen mittels GPS
• Test der Ausrüstung
• Kalibrierung der Multispektralkamera
Review Meeting
19 – 21 January Corcaigh
UAV-Befliegung
Flugplan
• Flughöhe 120m • Vollautomatische Befliegung
Review Meeting
19 – 21 January Corcaigh
UAV-Befliegung
Datenvisualisierung
Test
Test combine with scan data.
• Kronenmodell mit digitalem Höhenmodell
• Darstellung Ausschnitt Demofläche
Quelle: Quick Terrain Reader
Review Meeting
19 – 21 January Corcaigh
“Beyond the State of the Art”
UAV-Vorteile multispektraler Aufnahme
multiSPEC 4C - 4 Farbkanäle für Spektralanalyse
• Messung Blattreflexion in vier Frequenzbereichen
 Grün, Rot, naher Rotbereich und Infrarotbereich
• Aufnahmen: 10 Perspektiven pro Punkt
• Korrekturen: Lichtverhältnisse und Reflexion
• Auflösung: 10cm/Punkt (100m FH)
• Bildformat: TIFF Format
Multispec 4C Kamera
 Darstellung der Vitalität
 Baumart
 Wasserhaushalt
 Schäden
UAV Foto-
Orthofoto
Terrestrial Laser Scanning-TLS
Ermittlung Baumhöhen
UAV- Digitales
Oberflächen
Modell
Digitales
Gelände
Modell
Digitales
Baumhöhen
Modell
Relative Baumhöhen durch Geländemodell (SAGIS) und Oberflächenmodell (UAV)
TLS-Planung Feldaufnahmen
Probepunkte
Wo sollen sich die Probepunkte befinden?
•In der Nähe der Seiltrasse
•Alle Baumarten müssen repräsentiert sein
(Stratifizierung)
•Kosten und Zugänglichkeit
•Variabilität der Bestände
•Gewünschte Genauigkeit
•Anzahl der Bäume in der Erntefläche
Wie viele Probepunkte?
Anordnung der Probepunkte in der Demofläche
Entwicklung einer Anwendersoftware:
-Wechselseitige Kommunikation zwischen
Büro und Bestand durch GPRS oder Wifi
-Bestandesinformationen können abgerufen
werden
- Messung des BHD mit Messkluppe und
Datenübertragung durch Bluetooth
- Aufnahme von Defekten am Stamm
TLS-Datenaufnahme
Spezialsoftware
Kick-off Meeting
8-9/jan/2014
TLS-Datenaufnahme
Terrestrial Laser Scanning
Terrestrial Laser Scanner
BHD Messung der Probebäume
Kick-off Meeting
8-9/jan/2014
Datenaufnahme
Auszeige der Bäume mit RFID-Marker
• RFID-Radio-Frequency-Identification Tag
• Zuordnung einer eindeutigen ID
• Verknüpfung der ID mit Datenbank
• Datenbank enthält detaillierte Baumdaten
Kick-off Meeting
8-9/jan/2014
Dendrometrische Analyse
Durchmesser, Höhe, Form, Volumen, etc.
Daten aus TLS
• Schaftform
• BHD, Verhältnis BHD-Höhe, Verhältnis BHD-Kronengröße
• Baumvolumen
• Defekte am Stamm
Datenanalyse
Daten ausTLS
Baumidentifizierung und Bestimmung
der Sortimente (Autostem)
Kick-off Meeting
8-9/jan/2014
Ablauf-Baumklassifizierung
Klassifizierung
Hochaufösende
Bilder
Regressionsanalyse auf Baumniveau
Identifikation der
Bäume
TLS Aufnahmen
y = -0.0069x2
+ 0.4969x - 0.0193
R2
= 0.7064
0
1
2
3
4
5
6
0 5 10 15
Predicted Height * Basal Area (m3)
Volume
(m3)
Regressionsanalyse
Kick-off Meeting
8-9/jan/2014
Regressionsanalysen
Zusammenhang Kronengröße-Baumhöhe-Baumvolumen
Kronengröße und Baumhöhe zur Bestimmung des Baumvolumens
sehr gute Korrelation R²=0,7
y = -0.1882x2 + 17.376x + 216.85
R² = 0.6965
0
100
200
300
400
500
600
700
800
0 20 40 60 80
DBH (cm)
Crown Size (sqm)
y = -7E-07x2 + 0.0038x + 0.4299
R² = 0.6969
0
1
2
3
4
5
6
7
0 500 1000 1500 2000
Volume
(m3)
Height*Crown area
DBH (mm)
Kick-off Meeting
8-9/jan/2014
Darstellung der Baumvolumen
Interessantes Feature- Darstellung der Baumvolumen durch Kronengröße
Kick-off Meeting
8-9/jan/2014
Kontaktinformationen
Universität für Bodenkultur, Wien
Department für Wald- und Bodenwissenschaften
Institut für Forsttechnik
DI Maximilian Kastner
Peter Jordan Straße 82, A-1190 Wien
Tel.: +43 1 47654-91523
maximilian.kastner@boku.ac.at , www.boku.ac.at
Vielen Dank für Ihre Aufmerksamkeit

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