14 research outputs found

    European HYdropedological Data Inventory (EU-HYDI)

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    There is a common need for reliable hydropedological information in Europe. In the last decades research institutes, universities and government agencies have developed local, regional and national datasets containing soil physical, chemical, hydrological and taxonomic information often combined with land use and landform data. A hydrological database for western European soils was also created in the mid-1990s. However, a comprehensive European hydropedological database, with possible additional information on chemical parameters and land use is still missing. A comprehensive joint European hydropedological inventory can serve multiple purposes, including scientific research, modelling and application of models on different geographical scales. The objective of the joint effort of the participants is to establish the European Hydropedological Data Inventory (EU-HYDI). This database holds data from European soils focusing on soil physical, chemical and hydrological properties. It also contains information on geographical location, soil classification and land use/cover at the time of sampling. It was assembled with the aim of encompassing the soil variability in Europe. It contains data from 18 countries with contributions from 29 institutions. This report presents an overview of the database, details the individual contributed datasets and explains the quality assurance and harmonization process that lead to the final database

    Development of the SnowFrost model for the simulation of snow fall and soil frost

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    In the process of studying how climatic changes will influence important forage crops at high latitudes, van Oijen et al. (2005) developed a plant model for two grass species, timothy (Phleum pratense L.) and perennial ryegrass (Lolium perenne L.). In order to study winter survival of the plants, the plant model requires routines to simulate winter conditions, such as snow accumulation, soil frost, ice cover and soil temperature. This report describes the development of the SnowFrost model that simulates snow accumulation and the formation of soil frost. Routines for simulating ice encasement will be added at a later stage. The SnowFrost model implements a degree-day-temperatureindex method in the snowmelt routines, and an energy balance approach to get an algebraic expression for soil frost formation. Our main focus when developing the winter model is to adequately simulate winter conditions from the plant's point of view, rather than accurately simulate the depths of snow cover and soil frost penetration. Simulations for a site with cold and stable winter conditions show promising results, and indicate that SnowFrost is suitable as a foundation for the continuing work of developing the winter routines for the plant model

    Norsk landbruksforskning : avrenningsundersøkelser i Iysimetre på Ås - forsøksanlegg og resultater 1989/91

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    Norsk landbruksforskning : jordas produktivitet i langsiktig perspektiv

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    National Scenarios – Norway. Introduction of national scenarios for approval of new pesticides in Norway

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    This is a final report for the project Norwegian Scenarios from the periods 1999-2002 and 2005- 2008, mainly focusing on the simulations done with the models MACRO and PRZM. The aim of this project was to improve the risk assessment work in Norway by establishing surface- and groundwater scenarios which could be representative for Norwegian conditions and to later use these for approval of new pesticides. This project has been a cooperation between Bioforsk Plantehelse, Norwegian University of Life Sciences and the Norwegian Food Safety Authority.publishedVersio

    Norwegian Scenarios II. Final report from the period 2007/2008

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    This is a final report for the project Norwegian Scenarios II, part two, that has been performed in collaboration between Bioforsk Plant Health and Plant Protection, The Norwegian University of Life Sciences and the Norwegian Food Safety Authority. The aim of the project was to establish Norwegian scenarios for the models PRZM and MACRO and to use them for approval of new pesticides.publishedVersio

    Norwegian Scenarios II. Final report from the period 2007/2008

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    This is a final report for the project Norwegian Scenarios II, part two, that has been performed in collaboration between Bioforsk Plant Health and Plant Protection, The Norwegian University of Life Sciences and the Norwegian Food Safety Authority. The aim of the project was to establish Norwegian scenarios for the models PRZM and MACRO and to use them for approval of new pesticides.publishedVersio
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