Integrating contemporary spatial forest cover data in the polish Carpathians: does abundance of data increase knowledge or uncertainty?
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RIS BIB ENDNOTEIntegrating contemporary spatial forest cover data in the polish Carpathians: does abundance of data increase knowledge or uncertainty?
Publication date: 19.12.2019
Geoinformatica Polonica, 2019, Vol. 18 (2019), pp. 31 - 43
https://doi.org/10.4467/21995923GP.19.002.10886Authors
Integrating contemporary spatial forest cover data in the polish Carpathians: does abundance of data increase knowledge or uncertainty?
Though the State Forests in Poland maintain an accurate spatial database covering roughly 80% of the forest area in Poland, the remaining 20% of forests, mostly private, are not mapped with similar accuracy. Several national mapping projects have been carried out in Poland recently, yet it is not trivial to integrate their results in the context of forest cover estimation, due to inconsistencies of incorporated forest definitions. For instance, some datasets exclude areas which are legally forest, but temporarily devoid of trees due to damage by wind or pests. Moreover, the unknown extent of secondary forest succession on abandoned agricultural land introduces much uncertainty in assessing the actual forest area. Our work proposes therefore a semi-automatic algorithm that integrates spatial data on contemporary forest cover from various sources, and eliminates their mutual inconsistencies. The study was conducted in the Polish Carpathians, where, due to a high share of private forests, reliable forest cover estimates are particularly difficult. The approach combines forest cover information from the national topographic data, both past (1970s) and current (2010s) and from the State Forests spatial databases. Contrary to the current national topographic data, the produced map presents forests in coherence with the Polish forest definition and is comparable to the earlier topographic maps. Our results suggest that various databases underestimate forest cover in the Polish Carpathians, and that the expert knowledge- based fusion of the datasets may provide complete and reliable information on the actual current forest cover in the region.
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Information: Geoinformatica Polonica, 2019, Vol. 18 (2019), pp. 31 - 43
Article type: Original article
Titles:
Integrating contemporary spatial forest cover data in the polish Carpathians: does abundance of data increase knowledge or uncertainty?
Department of GIS, Cartography and Remote Sensing, Institute of Geography and Spatial Management, Jagiellonian University
Department of GIS, Cartography and Remote Sensing, Institute of Geography and Spatial Management, Jagiellonian University
Department of GIS, Cartography and Remote Sensing, Institute of Geography and Spatial Management, Jagiellonian University
Published at: 19.12.2019
Article status: Open
Licence: CC BY-NC-ND
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