Heterogeneous solute flow in a sandy soil under a pine forest: Evaluation of a modeling concept

Research output: Contribution to journalArticleResearchpeer review

Authors

  • Markus Deurer
  • Wilhelmus H.M. Duijnisveld
  • Jürgen Böttcher
  • Gunther Klump

External Research Organisations

  • Federal Institute for Geosciences and Natural Resources (BGR)
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Details

Original languageEnglish
Pages (from-to)601-610
Number of pages10
JournalJournal of Plant Nutrition and Soil Science
Volume164
Issue number6
Publication statusPublished - Dec 2001

Abstract

This study investigated the heterogeneous water characteristic functions and hydraulic conductivities for a gleyic podzol under a coniferous forest 40 km northeast of Hannover, Germany. The hydraulic properties were parameterized with the van Genuchten model. Reference functions and sets of scaling factors were derived for every horizon. The scaling factors showed correlation lengths of about 0.2 m. Along a 10 m long transect the spatially variable rain throughfall as the upper boundary and the groundwater level as the lower boundary was measured. A tracer experiment was conducted for the period of main groundwater recharge. Using the independent measurements of heterogeneous hydraulic properties, we simulated the solute transport for this period with a conventional model that solves the Richards' equation for water flow and the convective dispersive equation for solute transport. We found qualitative agreement between some features of the measured and modeled solute transport such as its channel-like structure. However, the partly preferential flow of solutes and the correspondingly large dispersivities could not be modeled.

Keywords

    Conditional simulation, Geostatistics, Preferential, Scaling

ASJC Scopus subject areas

Cite this

Heterogeneous solute flow in a sandy soil under a pine forest: Evaluation of a modeling concept. / Deurer, Markus; Duijnisveld, Wilhelmus H.M.; Böttcher, Jürgen et al.
In: Journal of Plant Nutrition and Soil Science, Vol. 164, No. 6, 12.2001, p. 601-610.

Research output: Contribution to journalArticleResearchpeer review

Deurer M, Duijnisveld WHM, Böttcher J, Klump G. Heterogeneous solute flow in a sandy soil under a pine forest: Evaluation of a modeling concept. Journal of Plant Nutrition and Soil Science. 2001 Dec;164(6):601-610. doi: 10.1002/1522-2624(200112)164:6<601::AID-JPLN601>3.0.CO;2-Q
Deurer, Markus ; Duijnisveld, Wilhelmus H.M. ; Böttcher, Jürgen et al. / Heterogeneous solute flow in a sandy soil under a pine forest : Evaluation of a modeling concept. In: Journal of Plant Nutrition and Soil Science. 2001 ; Vol. 164, No. 6. pp. 601-610.
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AU - Deurer, Markus

AU - Duijnisveld, Wilhelmus H.M.

AU - Böttcher, Jürgen

AU - Klump, Gunther

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