Staff Publications

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.

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Critical soil conditions for oxygen stress to plant roots: substituting the Fedds-function by a process-based model
Bartholomeus, R.P. ; Witte, J.P.M. ; Bodegom, P.M. van; Dam, J.C. van; Aerts, R. - \ 2008
Journal of Hydrology 360 (2008)1-4. - ISSN 0022-1694 - p. 147 - 165.
bodemporiënsysteem - bodemlucht - wateropname (planten) - plant-water relaties - transpiratie - waterverzadiging - modellen - oxidatieve stress - bodem-plant relaties - soil pore system - soil air - water uptake - plant water relations - transpiration - waterlogging - models - oxidative stress - soil plant relationships - use systems-analysis - crop growth-models - physical-properties - water-uptake - diffusion - respiration - aeration - compaction - transport - conductivity
Effects of insufficient soil aeration on the functioning of plants form an important field of research. A well-known and frequently used utility to express oxygen stress experienced by plants is the Feddes-function. This function reduces root water uptake linearly between two constant pressure heads, representing threshold values for minimum and maximum oxygen deficiency. However, the correctness of this expression has never been evaluated and constant critical values for oxygen stress are likely to be inappropriate. In this paper, we propose a fundamentally different approach to assess oxygen stress: we built a plant physiological and soil physical process-based model to calculate the minimum gas filled porosity of the soil at which oxygen stress occurs.
Effects of insufficient soil aeration on the functioning of plants form an important field of research. A well-known and frequently used utility to express oxygen stress experienced by plants is the Feddes-function. This function reduces root water uptake linearly between two constant pressure heads, representing threshold values for minimum and maximum oxygen deficiency. However, the correctness of this expression has never been evaluated and constant critical values for oxygen stress are likely to be inappropriate. On theoretical grounds it is expected that oxygen stress depends on various abiotic and biotic factors. In this paper, we propose a fundamentally different approach to assess oxygen stress: we built a plant physiological and soil physical process-based model to calculate the minimum gas filled porosity of the soil (phi gas_min) at which oxygen stress occurs. First, we calculated the minimum oxygen concentration in the gas phase of the soil needed to sustain the roots through (micro-scale) diffusion with just enough oxygen to respire. Subsequently, phi gas_min that corresponds to this minimum oxygen concentration was calculated from diffusion from the atmosphere through the soil (macro-scale). We analyzed the validity of constant critical values to represent oxygen stress in terms Of phi gas_min, based on model simulations in which we distinguished different soil types and in which we varied temperature, organic matter content, soil depth and plant characteristics. Furthermore, in order to compare our model results with the Feddes-function, we linked root oxygen stress to root water uptake (through the sink term variable F, which is the ratio of actual and potential uptake). The simulations showed that phi gas-min is especially sensitive to soil temperature, plant characteristics (root dry weight and maintenance respiration coefficient) and soil depth but hardly to soil organic matter content. Moreover, phi gas-min varied considerably between soil types and was larger in sandy soils than in clayey soils. We demonstrated that F of the Feddes-function indeed decreases approximately linearly, but that actual oxygen stress already starts at drier conditions than according to the Feddes-function. How much drier is depended on the factors indicated above. Thus, the Feddes-function might cause large errors in the prediction of transpiration reduction and growth reduction through oxygen stress. We made our method easily accessible to others by implementing it in SWAP, a user-friendly soil water model that is coupled to plant growth. Since constant values for phi gas_min in plant and hydrological modeling appeared to be inappropriate, an integrated approach, including both physiological and physical processes, should be used instead. Therefore, we advocate using our method in all situations where oxygen stress could occur. (C) 2008 Elsevier B.V. All rights reserved.
Soil moisture dynamics and land surface-atmosphere interaction
Teuling, A.J. - \ 2007
University. Promotor(en): P.A.A. Troch; Remko Uijlenhoet. - [S.l.] : s.n. - ISBN 9789085047360 - 76
bodemwater - vocht - atmosfeer - bodemlucht - plant-water relaties - wiskundige modellen - variatie in de tijd - soil water - moisture - atmosphere - soil air - plant water relations - mathematical models - temporal variation - cum laude
cum laude graduation (with distinction)
Diffusion in aggregated soil
Rappoldt, C. - \ 1992
Agricultural University. Promotor(en): C.T. de Wit; J.H.G. Verhagen. - S.l. : Rappoldt - 162
bodemstructuur - bodemtextuur - grondmechanica - deeltjesgrootteverdeling - bodemlucht - porositeit - bodemdichtheid - poriënvolume - vloeistofmechanica - diffusie - vloeistoffen (liquids) - vloeistoffen (fluids) - soil structure - soil texture - soil mechanics - particle size distribution - soil air - porosity - soil density - pore volume - fluid mechanics - diffusion - liquids - fluids
<p>The structure of an aggregated soil is characterized by the distribution of the distance from an arbitrary point in the soil to the nearest macropore or crack. From this distribution an equivalent model system is derived to which a diffusion model can be more easily applied. The model system consists of spherical, or cylindrical or plane aggregates, which do not represent the individual aggregates of the soil, however. The radii of the spheres, cylinders or plane sheets represent different length scales occurring in the soil structure and the relative abundance of each radius is expressed as a weight factor. These weight factors are derived by conserving the distance distribution of the soil: the real soil and the model system have the same distance distribution. This implies that the length scales occurring in the two systems are the same and that diffusion processes take place in approximately the same way. A model of diffusion in soil aggregates is evaluated by solving a differential equation for a spherical, a cylindrical or a plane geometry. The overall result for the soil is then found as a weighted sum of the results for the various length scales or radii.<p>In case of an isotropic soil structure, the weight factors for a cylinder system can also be obtained from distances measured in a cross section of the soil. The measurements may be carried out by means of image analysis.<p>The "scale method" is also applied to root systems with a non-regular root distribution. Theoretically calculated nutrient uptakes show good agreement with exact results in the literature obtained with an electrical analogue.<p>For a cracked clayey soil, the crack pattern observed in the field is compared with the distribution of anoxic soil. In case of a uniform soil activity, anoxic soil is expected to occur in the centres of the crumbs only. Part of the anoxic soil, however, was found within 1 mm from a crack. From the measured local diffusivity of oxygen it is concluded that the anaerobiosis near cracks is caused by a local soil activity exceeding the overall soil respiration by at least a factor 100. The presence of highly active and anoxic "hot spots" near macropores or cracks implies that denitrification may take place by the flow of water through the hot spots and without nitrate diffusion.
Onderzoek naar de groeiplaatsomstandigheden en de inpassingsmogelijkheden van de leilinden (Tilia x vulgaris) in de toekomstige reconstructie van de Burgemeester van der Schansstraat in Andel, najaar 1989
Peeters, J.P. ; Burg, J. van den - \ 1990
Wageningen : De Dorschkamp (Rapport / De Dorschkamp Instituut voor Bosbouw en Groenbeheer nr. 603) - 64
bosbouw - bomen - straatbomen - houtachtige planten als sierplanten - gezondheid - bosschade - wegenbouw - wegen - waterrelaties - wortels - bodem - mineralen - as - planten - mineraalgehalte - bodemdichtheid - bodemverdichting - beschadigingen door zout - bodemzoutgehalte - bodemlucht - plantenontwikkeling - tilia europaea - nederland - noord-brabant - steunmuren - forestry - trees - street trees - ornamental woody plants - health - forest damage - road construction - roads - water relations - roots - soil - minerals - ash - plants - mineral content - soil density - soil compaction - salt injury - soil salinity - soil air - plant development - netherlands - revetments
Lucht- en waterhuishouding in en rond horizontaal funderingshout : bijdrage aan een onderzoek door het Houtinstituut T.N.O. op het gebied van schimmelaantasting van horizontaal funderingshout
Bakker, J.W. ; Verhaegh, W.B. - \ 1988
Wageningen : ICW (ICW nota 1930) - 49
bosbouw - funderingen - bodemlucht - grondwaterspiegel - hout - forestry - foundations - soil air - water table - wood
Het gedrag van CO2 in de bodem onder invloed van de water - luchthuishouding en chemische evenwichten
Groenendijk, P. ; Ritsema, C.J. - \ 1988
Wageningen : I.C.W. (Nota / Instituut voor Cultuurtechniek en Waterhuishouding 1811) - 85
bodemoplossing - bodemlucht - kooldioxide - adsorptie - waterverontreiniging - waterlopen - oppervlaktewater - waterkwaliteit - natuurbescherming - natuurgebieden - veluwe - soil solution - soil air - carbon dioxide - adsorption - water pollution - streams - surface water - water quality - nature conservation - natural areas
Vochtprofielen en luchtprofielen van Tondense Heide en Groot Zandbrink zijn gesimuleerd via de modellen WATBAL / BALANCE en SWATRE
Diffusie van gassen in grond en zuurstofdiffusiecoefficienten in Nederlandse akkerbouwgronden
Bakker, J.W. ; Boone, F.R. ; Boekel, P. - \ 1987
Wageningen : I.C.W. (Rapporten / Instituut voor Cultuurtechniek en Waterhuishouding 20) - 44
bodemlucht - bodem - zuurstof - bodemwatergehalte - kationenwisseling - absorptie - natrium - diffusie - ionen - bodemkunde - mechanica - gassen - nederland - stroming - soil air - soil - oxygen - soil water content - cation exchange - absorption - sodium - diffusion - ions - soil science - mechanics - gases - netherlands - flow
Simulatie van vochtleverantie in de natuurgebieden 'Tondensche Heide' en 'Veerstalblok'
Waal, R.W. de - \ 1987
Utrecht : Studiecommissie Waterbeheer Natuur, Bos en Landschap (Waterbeheer natuur bos en landschap ) - 66
beschikbaar bodemwater - verwelkingspunt - bodemlucht - wateropslag - grondwater - oppervlaktewater - modellen - onderzoek - hydrologie - infiltratie - simulatiemodellen - natuurgebieden - watergebruik - gelderland - zuid-holland - achterhoek - krimpenerwaard - available water - wilting point - soil air - water storage - groundwater - surface water - models - research - hydrology - infiltration - simulation models - natural areas - water use
Bodemkundige informatie Stiboka
Dynamic simulation of multinary diffusion problems related to soil.
Leffelaar, P.A. - \ 1987
Soil Science 143 (1987)2. - ISSN 0038-075X - p. 79 - 91.
kationenwisseling - absorptie - natrium - diffusie - ionen - bodem - bodemkunde - bodemlucht - denitrificatie - cation exchange - absorption - sodium - diffusion - ions - soil - soil science - soil air - denitrification
Invloed van gasdrainage in de afdeklaag van een vuilstort op de beplanting
Voort, W.J.M. van der; Wopereis, F.A. - \ 1986
Wageningen : STIBOKA (Rapport / Stichting voor Bodemkartering no. 1968) - 45
biogas - bosplantages - bosbouw - brandstoffen - koolwaterstoffen - stortterreinen - methaan - huisvuilverwijdering - aardgas - vuilnisbelten - verzegelen - bodemlucht - bodembescherming - afvalverwijdering - afvalstortplaatsen - bekledingen - forest plantations - forestry - fuels - hydrocarbons - landfills - methane - municipal refuse disposal - natural gas - refuse tips - sealing - soil air - soil conservation - waste disposal - waste disposal sites - linings
Naar een methode voor integratie, kartering en toepassing
Besten, J.J. den - \ 1985
Utrecht : Studiecommissie Waterbeheer Natuur Bos en Landschap (Studiecommissie Waterbeheer Natuur Bos en Landschap no. 5) - 74
beschikbaar bodemwater - bodem - buffercapaciteit - bodemwater - bodemchemie - anorganische verbindingen - cartografie - bodemlucht - planten - habitats - bodemkarteringen - kaarten - thematische cartografie - available water - soil - buffering capacity - soil water - soil chemistry - inorganic compounds - mapping - soil air - plants - soil surveys - maps - thematic mapping
Bijdrage Stiboka aan SWNBL studie
Transport van vluchtige aromaten in de bodem onder kruipruimten
Hoeks, J. - \ 1985
Wageningen : ICW (Nota / Instituut voor Cultuurtechniek en waterhuishouding no. 1654) - 16
biogas - kelders - schade - milieueffect - brandstoffen - koolwaterstoffen - methaan - aardgas - bodemlucht - bodemverontreiniging - cellars - damage - environmental impact - fuels - hydrocarbons - methane - natural gas - soil air - soil pollution
Transport en afbraak van vluchtige aromaten in de bodem
Hoeks, J. - \ 1984
Wageningen : ICW (Nota / Instituut voor Cultuurtechniek en Waterhuishouding no. 1497) - 15
biogas - schade - milieueffect - brandstoffen - koolwaterstoffen - methaan - aardgas - bodemlucht - bodemverontreiniging - damage - environmental impact - fuels - hydrocarbons - methane - natural gas - soil air - soil pollution
Invloed van regenval op fysische eigenschappen van de grond
Pelgrum, A. - \ 1983
Haren : I.B. (Rapport / Instituut voor Bodemvruchtbaarheid no. 4-83) - 38
capillaire opstijging - hysterese - vocht - neerslag - regen - retentie - bodemlucht - grondmechanica - bodemfysica - zuiging - spanning - pf-curve - capillary rise - hysteresis - moisture - precipitation - rain - retention - soil air - soil mechanics - soil physics - suction - tension
Er blijkt een duidelijke samenhang te bestaan tussen de schommelingen van de gemiddelde neerslag en die van de opbrengsten en de bodemvruchtbaarheidsfaktoren pH-H2O, P-getal en K-getal (Van der Paauw, 1961). In verband hiermee werd in 1961 een werkgroep opgericht om een onderzoek in te stellen naar de relatie weer-grond-gewas. Dit onderzoek is verricht van 1961 tot en met 1973, waarvan hier de resultaten worden weergegeven
Gastransport in de bodem : voordracht gehouden in het kader van de PAO-cursus 'Interimwet bodemsanering vanwege bodemverontreiniging', Delft, november 1983
Hoeks, J. - \ 1983
Wageningen : I.C.W. (Nota / Instituut voor Cultuurtechniek en Waterhuishouding no. 1470) - 13
luchtverontreiniging - biogas - brandstoffen - koolwaterstoffen - methaan - aardgas - bodemlucht - bodemverontreiniging - air pollution - fuels - hydrocarbons - methane - natural gas - soil air - soil pollution
Onderzoek naar de aanwezigheid van ploegzolen in zavel- en lichte kleigronden en de invloed daarvan op de water- en luchthuishouding van het profiel
Pelgrum, A. - \ 1977
Haren : Instituut voor Bodemvruchtbaarheid (Rapport / Instituut voor Bodemvruchtbaarheid no. 10-77) - 28
permeabiliteit - ploegzolen - bodem - bodemlucht - permeability - plough pans - soil - soil air
Toelaatbare doseringen van organische meststoffen onder wegdekken in verband met de luchthuishouding in de grond rond straatbeplanting
Bakker, J.W. - \ 1975
Wageningen : ICW (Nota / Instituut voor Cultuurtechniek en Waterhuishouding no. 872) - 14
bosbouw - straatbomen - houtachtige planten als sierplanten - beplanten - organische meststoffen - bodemlucht - bemesting - forestry - street trees - ornamental woody plants - planting - organic fertilizers - soil air - fertilizer application
Changes in composition of soil air near leaks in natural gas mains
Hoeks, J. - \ 1972
Wageningen : I.L.W.M.R. (Technical bulletin / Institute for land and water management research no. 82) - 8
bodemlucht - soil air
Effect of leaking natural gas on soil and vegetation in urban areas
Hoeks, J. - \ 1972
Landbouwhogeschool Wageningen. Promotor(en): G.H. Bolt. - Wageningen : Pudoc - ISBN 9789022004029 - 120
biogas - oogstschade - schade - milieueffect - brandstoffen - koolwaterstoffen - methaan - aardgas - houtachtige planten als sierplanten - fysicochemische eigenschappen - plantenziekten - afwijkingen, planten - plantenziektekunde - plantenplagen - gewasbescherming - wegbeplantingen - wegbermplanten - bodemlucht - bodemchemie - bodemverontreiniging - bodemeigenschappen - bodemzoutgehalte - bodemkunde - bodemgiftigheid - crop damage - damage - environmental impact - fuels - hydrocarbons - methane - natural gas - ornamental woody plants - physicochemical properties - plant diseases - plant disorders - plant pathology - plant pests - plant protection - roadside plantations - roadside plants - soil air - soil chemistry - soil pollution - soil properties - soil salinity - soil science - soil toxicity
<p/>Leakage of natural gas from the gas distribution system affects the physical, chemical and biological processes in the soil. Particularly the microbial oxidation of methane is then of predominant importance for the composition of the soil gas phase. The rate of methane oxidation was measured under varying conditions of gas phase composition, temperature and nutrient supply. Computation models were evolved with which it is possible to calculate the effect of these and other factors on the distribution of methane, oxygen and carbon dioxide around a leak. Experiments with actual and artificial leaks as well as the calculations showed that the extent of the gas zone largely depends on the leakage rate, the depth of the groundwater table, the soil moisture content and the extent of the pavement. The soil temperature also proved to have a significant influence by its effect on the microbial methane oxidation. At low temperatures this microbial process is limited and consequently the anaerobic zone, which is invariably present in summer, may then disappear completely, thus making the probability of injury to vegetation negligible in winter. After repair of the leak the poor aeration conditions in the soil may persist for quite a long time. This is caused by the high consumption rate of oxygen required for the oxidation of organic substances and reduced anorganic compounds accumulated in the soil during gas leakage. The oxygen overdemand and the oxidation rate were determined for various gassed soils. Measures can be taken to accellerate soil recovery processes and to improve conditions for regeneration of injured trees and before planting new trees. Both experiments and calculations with computation models proved that installation of open ventilation channels is very effective, even if the leak cannot be immediately repaired. So ventilation channels can also be installed as preventive measure.
Luchthuishouding van bodem en plant : overzicht processen en kenmerkende grootheden
Bakker, J.W. - \ 1971
Wageningen : I.C.W. (Nota / Instituut voor Cultuurtechniek en Waterhuishouding 610) - 9
bodemlucht - bodem-plant relaties - katabolisme - gewasteelt - soil air - soil plant relationships - catabolism - crop management
Geprobeerd is om een zo volledig mogelijk overzicht te geven van processen en relaties, die met het oog op de luchthuishouding van de grond van invloed zijn op de uiteindelijke gewasproduktie.
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