• Login
    View Item 
    •   Home
    • RIVM official reports
    • RIVM official reports
    • View Item
    •   Home
    • RIVM official reports
    • RIVM official reports
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of WARPCommunitiesTitleAuthorsIssue DateSubmit DateSubjectsPublisherDepartmentThis CollectionTitleAuthorsIssue DateSubmit DateSubjectsPublisherDepartment

    My Account

    LoginRegister

    Statistics

    Display statistics

    Water- en nutrientenhuishouding van het stroomgebied van de Hupselse beek

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Average rating
     
       votes
    Cast your vote
    You can rate an item by clicking the amount of stars they wish to award to this item. When enough users have cast their vote on this item, the average rating will also be shown.
    Star rating
     
    Your vote was cast
    Thank you for your feedback
    Authors
    Eertwegh GAPH van den
    Meinardi CR
    Type
    Onderzoeksrapport
    Language
    nl
    
    Metadata
    Show full item record
    Title
    Water- en nutrientenhuishouding van het stroomgebied van de Hupselse beek
    Translated Title
    Water and nutrient budgets of the Hupselse beek catchment area
    Publiekssamenvatting
    Het stroomgebied van de Hupselse beek is gelegen in het zandgebied van Oostelijk Gelderland. De hydrologische grenzen van het gebied zijn goed bekend. Water-, stikstof- en fosfaatbalansen voor het gebied zijn berekend van april 1985 tot april 1994. De gemiddelde neerslag in die periode bedroeg 845 mm j-1, de afvoer van water door de beek 330 mm j-1 en de actuele verdamping 515 mm.j-1. Afvoercomponenten zijn afvoer over de oppervlakte (3% van het totaal), grondwaterafvoer via drainbuizen (55-75%) en afvoer van grondwater naar sloten en beken (20-40%). Ca. 40% van het water heeft een verblijftijd van maximaal 1 jaar in de bodem en ruim 90% komt binnen 5 jaar tot afvoer. De gemiddelde concentratie aan nitraat in de beekafvoer is 32 mg.l-1 en die aan totaal-fosfaat is 0.21 mg.l-1. Ongeveer 20% van de bodembelasting met stikstof komt tot afvoer, dit is gelijk aan 112 kg ha-1 j-1 N. In de onderzoeksperiode is geen trend aanwezig in de stikstofvracht van de beek. De jaarlijkse gemiddelde fosfaatvracht van de beek is 1 kg ha-1 j-1 P, dat is 1% van de bodembelasting. De fosfaatvracht in de onderzoeksperiode is dalend in de tijd
    The Hupselse beek catchment area is located in the sandy eastern part of the Netherlands. Its hydrological borders are well defined. Water, nitrogen, and phosphorus balances are calculated for the periode April 1985 to April 1994. Mean precipitation is 845 mm.a-1, actual evapotranspiration 515 mm.a-1, and discharge 330 mm.a-1. Discharge components are surface runoff (3% of total discharge), groundwater flow to tile drains (55-75%), and groundwater flow to ditches and the brook (20-40%). Roughly 40% of the water has a travel time in the soil of less than 1 year and more than 90% leaves the area within 5 years. Roughly 20% of the soil surface nitrogen load is transported by drainage, equal to 110 kg ha-1 a-1 N. The average concentration in brook discharge is 32 mg l-1. There is no trend in the nitrogen load during the period mentioned. The mean annual phosphorus load of the brook is 1 kg ha-1 a-1 P, resulting in an average concentration of 0.21 mg l-1 and corresponding to 1% of the soil surface load. The phosphorus load is decreasing with time during the period of investigation.
    Sponsors
    DGM-DWL
    URI
    http://hdl.handle.net/10029/260201
    Collections
    RIVM official reports

    entitlement

     

    DSpace software (copyright © 2002 - 2019)  DuraSpace
    Quick Guide | Contact Us
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.