Advanced

Spatial Influence of Topographical Factors on Yield of Potato (Solanum Tuberosum L.) in Central Sweden

Persson, Andreas LU ; Pilesjö, Petter LU and Eklundh, Lars LU (2005) In Precision Agriculture 6(4). p.341-357
Abstract
This study has evaluated the sampling density for creation of high-resolution digital elevation models (DEMs) for precision agriculture purposes. The relationships between yield and topographical factors were investigated in a study area located in the central Sweden province of Dalarna. The DEM data sampling was carried out with a RTK-GPS system. A dense sampling scheme was employed and data was divided into two for both interpolation and validation. Kriging interpolation was used for DEM generation. From the DEM, topographical parameters were extracted and topographical indices were estimated. The indices were calculated with slope length and its vertical and horizontal components. The drainage area for a point of interest and the... (More)
This study has evaluated the sampling density for creation of high-resolution digital elevation models (DEMs) for precision agriculture purposes. The relationships between yield and topographical factors were investigated in a study area located in the central Sweden province of Dalarna. The DEM data sampling was carried out with a RTK-GPS system. A dense sampling scheme was employed and data was divided into two for both interpolation and validation. Kriging interpolation was used for DEM generation. From the DEM, topographical parameters were extracted and topographical indices were estimated. The indices were calculated with slope length and its vertical and horizontal components. The drainage area for a point of interest and the relationship of this area to the total drainage area were also estimated. The relationship of yield and the topographical parameters and indices was investigated using
both circular and spatial statistics. A spatial regression was used to calculate a model for the relationship. Up to 20% of the yield could be explained in the final model for one of the fields. (Less)
Please use this url to cite or link to this publication:
author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Potato, Yield, Topographical indices, DEM, Spatial regression, Drainage area
in
Precision Agriculture
volume
6
issue
4
pages
341 - 357
publisher
Springer
external identifiers
  • scopus:24044514006
ISSN
1385-2256
DOI
10.1007/s11119-005-2323-6
language
English
LU publication?
no
id
97e7d574-18e6-47b4-84e7-42248bbddf4a (old id 591786)
date added to LUP
2007-12-17 10:32:22
date last changed
2017-04-04 08:58:14
@article{97e7d574-18e6-47b4-84e7-42248bbddf4a,
  abstract     = {This study has evaluated the sampling density for creation of high-resolution digital elevation models (DEMs) for precision agriculture purposes. The relationships between yield and topographical factors were investigated in a study area located in the central Sweden province of Dalarna. The DEM data sampling was carried out with a RTK-GPS system. A dense sampling scheme was employed and data was divided into two for both interpolation and validation. Kriging interpolation was used for DEM generation. From the DEM, topographical parameters were extracted and topographical indices were estimated. The indices were calculated with slope length and its vertical and horizontal components. The drainage area for a point of interest and the relationship of this area to the total drainage area were also estimated. The relationship of yield and the topographical parameters and indices was investigated using<br/>both circular and spatial statistics. A spatial regression was used to calculate a model for the relationship. Up to 20% of the yield could be explained in the final model for one of the fields.},
  author       = {Persson, Andreas and Pilesjö, Petter and Eklundh, Lars},
  issn         = {1385-2256},
  keyword      = {Potato,Yield,Topographical indices,DEM,Spatial regression,Drainage area},
  language     = {eng},
  number       = {4},
  pages        = {341--357},
  publisher    = {Springer},
  series       = {Precision Agriculture},
  title        = {Spatial Influence of Topographical Factors on Yield of Potato (<i>Solanum Tuberosum</i> L.) in Central Sweden},
  url          = {http://dx.doi.org/10.1007/s11119-005-2323-6},
  volume       = {6},
  year         = {2005},
}