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Staff Publications

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    '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.

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Record number 507722
Title Geostatistical interpolation and aggregation of crop growth model outputs
Author(s) Steinbuch, L.
Event ESA 14, 2016-09-05/2016-09-09
Department(s) Soil Geography and Landscape
ISRIC - World Soil Information
Publication type Abstract in scientific journal or proceedings
Publication year 2016
Abstract Many mechanistic crop growth models require daily meteorological data; consequently, model simulations can only be obtained for locations close to weather stations with long-term records. Those simulations deliver potential yields as point data.
A widely used approach for aggregating (estimating total production per country from the simulated yields at points) is based on agro-ecological Climate Zones (CZ), e.g. the Global Yield Gap Atlas (www.yieldgap.org). A geostatistical approach that exploits the spatial correlation of simulated yields at points and its correlation with external environmental factors offers additional features to the CZ approach: yield predictions adjusted to conditions on every single location, quantification of the uncertainty of the predictions, and quantification of uncertainty of aggregated country production. As a case study, we interpolate and aggregate potential yields of millet in West Africa. We compare the results of the geostatistical approach with those of the CZ approach.
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