Airborne laser scanning data as a source of field topographical characteristics

J. Kumhálová, F. Kumhála, P. Novák and Š. Matějková
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J. Kumhálová: Department of Applied Geoinformatics and Spatial Planning, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic
F. Kumhála: Department of Agricultural Machines, Faculty of Engineering, Czech University of Life Sciences Prague, Prague, Czech Republic
P. Novák: Department of Agricultural Machines, Faculty of Engineering, Czech University of Life Sciences Prague, Prague, Czech Republic
Š. Matějková: Department of Biomathematics and Databases, Crop Research Institute, Prague, Czech Republic

Plant, Soil and Environment, 2013, vol. 59, issue 9, 423-431

Abstract: One of the factors frequently affecting yields is topography. Topographic data can be obtained from various sources with different precision. This work evaluates suitability of airborne laser scanning data for use as another source of topographical characteristics creation in a smaller scale in regards to precision agriculture needs. Simple models of elevation, slope and flow accumulation were created and the correlation between yield and topography was determined over a seven-year period in relation to precipitations and temperature. The suitability of airborne laser scanning data was proved with certain limitations. Flow accumulation model derived from original airborne laser scanning data indicated the right trend of flow accumulation but not as clearly compared to other models. In drier years the correlation coefficients between flow accumulation and yield reached up to 60-70%.

Keywords: GIS; digital terrain models; flow accumulation; yield; weather conditions (search for similar items in EconPapers)
Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:59:y:2013:i:9:id:188-2013-pse

DOI: 10.17221/188/2013-PSE

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