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Data collection for forest management planning using stereo photogrammetry

Bohlin, Jonas (2017). Data collection for forest management planning using stereo photogrammetry. Diss. (sammanfattning/summary) Uppsala : Sveriges lantbruksuniv., Acta Universitatis agriculturae Sueciae, 1652-6880 ; 2017:109
ISBN 978-91-7760-108-1
eISBN 978-91-7760-109-8
[Doctoral thesis]

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Abstract

Forest managers need information about the forest state for planning treatments. The information needs to be sufficient for the purpose and preferably obtained at low cost and with regular updates. In the last decade, development and use of airborne laser scanning (ALS) for forest variable estimation has been a revolution for forest management planning. But it has also created opportunities for other three dimensional (3D) technologies which can describe the forest canopy surface, since it provides an accurate model of the ground elevation. One such technique is stereo photogrammetry using aerial images. Using aerial images from national image surveying programs, high resolution 3D data and spectral data can be acquired regularly with a frequency of about 2-4 years over forest land in Sweden. The aim was to produce forest variable raster maps which can be used at stand level but also as information to describe within stand variation and updating stand boarders after clear-cut.
In this thesis aerial images from the National Land Survey’s image acquisition program has been used in all studies, but also high resolution and highly overlapping images have been evaluated. Using field plots, the 3D and spectral data can be linked by models to predict forest variables of interest. In this thesis; tree height, diameter, basal area, stem volume, species-specific stem volume and species proportions have been the variables of interest. Models have been applied and evaluated at Remningstorp in southern Sweden (Lat. 58°N, Long. 13°E), but also scaled up to national level using field plots from the national forest inventory. The included studies show that aerial images can produce forest variable estimates with good accuracy where best results in terms of root mean square error of the mean were 8.8% for tree height, 14.9% for basal area and 13.1% for stem volume, but that species-specific variables did not perform as well.
In conclusion, aerial images with 0.5 m resolution and 60% overlap using stereo photogrammetry produce estimates with an acceptable level of accuracy for use as a data source for forest management planning. However, very sparse forests, deciduous forests and mature forests have larger estimation errors. Nevertheless, from a forest management perspective, forest information can be collected at very low costs and with high spatial and temporal resolution.

Authors/Creators:Bohlin, Jonas
Title:Data collection for forest management planning using stereo photogrammetry
Series/Journal:Acta Universitatis agriculturae Sueciae (1652-6880)
Year of publishing :24 November 2017
Depositing date:24 November 2017
Volume:2017:109
Number of Pages:42
Papers/manuscripts:
NumberReferences
IBohlin J., Wallerman J., and Fransson J.E.S. (2012). Forest variable estimation using photogrammetric matching of digital aerial images in combination with a high-resolution DEM. Scandinavian Journal of Forest Research, 27:7, 692-699.
IIBohlin J., Bohlin I., Jonzén J., and Nilsson M. (2017). Mapping forest attributes using data from stereophotogrammetry of aerial images and field data from the national forest inventory. Silva Fennica, 51:2, article id 2021. 18 p.
IIIBohlin J., Wallerman J., Olsson H., and Fransson J.E.S. (2012). Species-specific forest variable estimation using non-parametric modeling of multi-spectral photogrammetric point cloud data. In Proc: International Archives of the Photogrammetry, Volume XXXIX-B8, 2012 XXII ISPRS Congress, 25 August – 1 September 2012; Melbourne, Australia.
IVBohlin J., Wallerman J., and Fransson J.E.S. (2016). Deciduous forest mapping using change detection of multi-temporal canopy height models from aerial images acquired at leaf-on and leaf-off conditions. Scandinavian Journal of Forest Research, 31:5, 517-525.
VBohlin J., Wallerman J., and Fransson J.E.S. Assessment of tree species proportion from 3D image products (manuscript).
Place of Publication:Uppsala
Publisher:Department of Forest Resource Management, Swedish University of Agricultural Sciences.
ISBN for printed version:978-91-7760-108-1
ISBN for electronic version:978-91-7760-109-8
ISSN:1652-6880
Language:English
Publication Type:Doctoral thesis
Full Text Status:Public
Agris subject categories.:K Forestry > K01 Forestry - General aspects
U Auxiliary disciplines > U40 Surveying methods
X Agricola extesions > X60 Technology
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
Agrovoc terms:aerial photography, image analysis, multispectral imagery
Keywords:area-based approach, aerial images, image matching, multi-spectral lidar, forest management planning, forest variables, photogrammetry, remote sensing, species-specific
URN:NBN:urn:nbn:se:slu:epsilon-e-4506
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-4506
ID Code:14752
Faculty:S - Faculty of Forest Sciences
Department:(S) > Dept. of Forest Resource Management
(NL, NJ) > Dept. of Forest Resource Management
Deposited By: Jonas Bohlin
Deposited On:27 Nov 2017 08:49
Metadata Last Modified:27 Nov 2017 08:49

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