The impact of upland land management on flooding: insights from a multiscale experimental and modelling programme

被引：49

作者：

Jackson, B. M. ^{[1
,2
]}

Wheater, H. S. ^{[2
]}

Mcintyre, N. R. ^{[2
]}

Chell, J. ^{[2
]}

Francis, O. J. ^{[2
]}

Frogbrook, Z. ^{[3
]}

Marshall, M. ^{[2
]}

Reynolds, B. ^{[3
]}

Solloway, I. ^{[2
,3
]}

机构：

[1] Victoria Univ Wellington, Sch Geog Environm & Earth Sci, Wellington, New Zealand

[2] Univ London Imperial Coll Sci Technol & Med, Dept Civil & Environm Engn, London, England

[3] Ctr Ecol & Hydrol, Bangor, Gwynedd, Wales

来源：

JOURNAL OF FLOOD RISK MANAGEMENT | 2008年 / 1卷 / 02期

基金：

英国工程与自然科学研究理事会; 英国自然环境研究理事会;

关键词：

Agricultural intensification; flood risk; land management; scale problem;

D O I：

10.1111/j.1753-318X.2008.00009.x

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A programme of field experiments at the Pontbren catchment in Wales has, since autumn 2004, been examining the effects of land use change on flooding. The Pontbren catchment possesses a long history of artificial drainage of its clay soils and intensification of sheep farming. Increased flood runoff has been noted within the last decades, as has the mitigating effect of trees at field scale. To examine the local and catchment-scale effects of land management within the catchment, including the potential advantages of planting additional trees, a multidimensional physically based model has been developed and conditioned on data from an intensely instrumented hillslope. The model is used to examine the effects of planting a small strip of trees within a hillslope. Results demonstrate that careful placement of such interventions can reduce magnitudes of flood peaks by 40% at the field scale. The challenges associated with upscaling these results to the Pontbren and Upper Severn catchments are discussed.

引用

页码：71 / 80

页数：10

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