Measurement of solute fluxes in macroporous soils: techniques, problems and precision

被引:20
作者
Armstrong, AC [1 ]
Leeds-Harrison, PB
Harris, GL
Catt, JA
机构
[1] ADAS Land Res Ctr, Mansfield NG20 9PF, Notts, England
[2] Cranfield Univ, Sch Agr Food & Environm, Silsoe MK45 4DT, Beds, England
[3] IACR Rothamsted, Dept Soil Sci, Harpenden AL5 2JQ, Herts, England
关键词
pesticides; nitrate; leaching; macropores; preferential flow; measurement;
D O I
10.1111/j.1475-2743.1999.tb00096.x
中图分类号
S15 [土壤学];
学科分类号
0903 ; 090301 ;
摘要
Preferential flow has been increasingly recognised as a major component of water movement in many soils, particularly clays. This paper reviews problems in the measurement of solute fluxes in these soils, and discusses the solutions that have been adopted in UK studies of cracking clay soils. The estimation of solute fluxes is subject to many sources of error, which are best reduced by replicated measurements, such as those available in multi-plot experiments.
引用
收藏
页码:240 / 246
页数:7
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