The leaching potential as a land quality of two Dutch soils under current and potential management conditions

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Authors:Hack-ten Broeke, M. J. D.; van Lanen, H. A. J.; Bouma, J.
Author Affiliations:Primary:
DLO Winand Staring Centre for Integrated Land, Soil and Water Research, Wageningen, Netherlands
Other:
Agricultural University, Wageningen, Netherlands
Volume Title:Special issue; Operational methods to characterize soil behavior in space and time
Volume Authors:Wagenet, R. J., editor
Source:Geoderma, 60(1-4), p.73-88; 1992 conference of Working Group M/V of the International Society of Soil Science, Ithaca, NY, July 26-29, 1992, edited by R. J. Wagenet and J. Bouma. Publisher: Elsevier, Amsterdam, Netherlands. ISSN: 0016-7061
Publication Date:1993
Note:In English. 20 refs.; illus.
Summary:Within the field of land evaluation, crop productivity as well as environmental effects should be investigated for specific land use types. The leaching potential is introduced as an environmental land quality and is expressed in terms of a downward flux from the root zone. The frequency distribution and the amount of this downward flux were calculated for each period of the year using the SWANY model, which simulates soil water flow, evapotranspiration and crop growth. Two examples for the use of this land quality are presented for potato production under different irrigation regimes on a coarse-textured Humic Podzol and under different groundwater control regimes on a median-textured Calcaric Fluvisol in the Netherlands. The simulation results showed that irrigation increases crop yields for the Humic Podzol, but also increases the leaching potential. Restricted irrigation resulted in similar crop production levels, but in only part of the additional downward flux from the root zone. For the Calcaric Fluvisol, drainage provided higher crop yields and a slightly lower leaching potential due to an increase in crop uptake.
Subjects:Calibration; Controls; Drainage; Evapotranspiration; Fluvisols; Ground water; Hydrology; Irrigation; Leaching; Models; Moisture; Movement; Podzols; Quantitative analysis; Seasonal variations; Simulation; Soil management; Soils; Water regimes; Yields; Europe; Netherlands; Western Europe; CROPR; Lelystad Netherlands; Sinderhoeve Netherlands; SWACROP; SWANY; SWATRE
Record ID:1994017377
Copyright Information:GeoRef, Copyright 2018 American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands
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