Impact of land-use change on nutrient fluxes in a structured clay-loam soil

被引：0

作者：

Lichner, Lubomír ^{[1
]}

Mészároš, Ivan ^{[1
]}

Germann, Peter F. ^{[2
]}

Alaoui, Abdallah Mdaghi ^{[2
]}

Šír, Miloslav ^{[3
]}

Faško, Pavol ^{[4
]}

机构：

[1] Institute of Hydrology, Slovak Academy of Sciences, Racianska 75, PO Box 94, 830-08 Bratislava, Slovakia

[2] Institute of Geography, Bern University, Hallerstrasse 12, CH-3012 Bern, Switzerland

[3] Institute of Hydrodynamics, Czech Academy of Sciences, Podbabská 13, 166-12 Prague 6, Czech Republic

[4] Slovak Hydrometeorological Institute, Jeséniova 17, 83-315 Bratislava, Slovakia

来源：

IAHS-AISH Publication | 1999年 / 257期

关键词：

Clay - Infiltration - Land use;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Accepted management practices influence the distribution of surface-vented macropores and thus the nutrient fluxes in soil. Two ways to assess the impact of land-use change on nutrient fluxes in soils are presented: (a) estimating the bypassing ratio at the interface between the root zone and subsoil, and (b) monitoring the non-reactive tracer relative concentration vs depth distributions in the course of infiltration experiment. The 1993-1996 small-scale field experiments have shown that the bypassing ratio varied from 19 to 55% in a structured clay-loam soil. Impact of land use on the tracer relative concentration vs depth distributions was significant for small and medium cumulative infiltration (I = 40-54 mm) but not so significant for the bigger cumulative infiltration (I = 100-108 mm).

引用

页码：171 / 177