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Mapping peatland disturbance in Ireland: an object oriented approach

Connolly, John orcid logoORCID: 0000-0002-2897-9711 and Holden, Nicholas M. orcid logoORCID: 0000-0002-0452-4632 (2011) Mapping peatland disturbance in Ireland: an object oriented approach. In: SPIE Remote Sensing for Agriculture, Ecosystems, and Hydrology XIII, 19-22 Sept 2011, Prague, Czech Republic.

Abstract
Peatlands contain large amounts of soil organic carbon. In a pristine state they sequester atmospheric carbon dioxide (CO2), however, when they are disturbed they emit it. In Ireland peatlands are extensive and cover 20% of the national land area. They contain between 53% and 62% of the total national soil organic carbon. However, large areas of Irish peatlands have been disturbed by anthropogenic activity. This activity includes drainage, mechanical extraction and burning. These activities lead to the reduction of the resilience of the peatland to climate and environmental change and can lead to the increased vulnerability of the peatland carbon stock. In this research an object oriented approach is used to examine high resolution imagery of a raised bog in Ireland and to extract a map of disturbed peatlands. The object oriented approach is implemented in ArcGIS with high resolution Geoeye-1 satellite imagery. The main disturbance classes identified were rough grazing, pasture, molinia, coniferous forest, high bog, drained bog and scrub. The users accuracy for each individual class ranged from 66% to 92% and the overall accuracy assessment for the disturbance map 85%.
Metadata
Item Type:Conference or Workshop Item (Paper)
Event Type:Conference
Refereed:Yes
Uncontrolled Keywords:Peatland disturbance; object-oriented; raised bogs; Ireland; Geoeye-1, high resolution imagery
Subjects:UNSPECIFIED
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Humanities and Social Science > School of History and Geography
Published in: Neale, Christopher M. U., Maltese, Antonino and Richte, Katja, (eds.) Proceedings, Remote Sensing for Agriculture, Ecosystems, and Hydrology XIII. 8174. SPIE.
Publisher:SPIE
Official URL:http://dx.doi.org/10.1117/12.898573
Copyright Information:© 2011 SPIE
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
Funders:Environmental Protection Agency of Ireland for funding this research under the National Development Plan and the STRIVE Programme 2007 -2013.
ID Code:23575
Deposited On:17 Jul 2019 15:33 by Thomas Murtagh . Last Modified 18 Jul 2019 13:00
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