Staff Publications

Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
  • About

    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 490638
Title The economic value of detailed soil survey in a drinking water collection area in the Netherlands
Author(s) Knotters, M.; Vroon, H.R.J.
Source Geoderma Regional 5 (2015). - ISSN 2352-0094 - p. 44 - 53.
Department(s) Soil, Water and Land Use
Publication type Refereed Article in a scientific journal
Publication year 2015
Keyword(s) bodemkarteringen - grondwaterstand - waterwinning - opbrengsten - berekening - veldwerk - midden-limburg - soil surveys - groundwater level - water catchment - yields - calculation - field work - midden-limburg
Categories Soil Classification / Water Supply
Abstract In large parts of the Netherlands crop growth depends on the water table. If groundwater is withdrawn the water table is lowered and agricultural crop production may be reduced. Farmers in drinking water collection areas are legally compensated for these crop yield reductions. Soil maps are used to estimate crop yield reductions and hence legal compensations. We calculated the benefit of a detailed soil survey from the reduction of errors in legal compensations that can be achieved if a detailed soil map, 1:25,000, is used for estimation instead of the national soil map, 1:50,000. We compared this error reduction with the costs of the detailed soil survey. We selected 40 farms by stratified random sampling in the drinking water collection area ‘Vierlingsbeek’. At each farm soil profile descriptions were made at a total of 137 randomly selected locations. Legal compensations estimated from the 1:50,000 soil map and information from the 1:25,000 soil map were compared with legal compensations calculated from the soil profile descriptions, and errors were calculated for each farm in € ha- 1 year- 1. With an investment in detailed soil survey of €30 ha- 1 the absolute error could be reduced on average by €13.16 ha- 1 year- 1, the present value of which is €258 ha- 1 assuming an interest of 3% and yearly compensations during a period of 30 years. We conclude therefore that for this study area detailed soil survey was worth the costs. Furthermore, we conclude that insight in the spatial dependence structure of classification errors at soil maps of various scales would be very helpful prior information in deciding on the detail of soil survey needed to support decisions at farm level.
There are no comments yet. You can post the first one!
Post a comment
Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.