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Journal of Soils and Sediments

, Volume 12, Issue 4, pp 586–602 | Cite as

A comparison of measured catchment sediment yields with measured and predicted hillslope erosion rates in Europe

  • Matthias Vanmaercke
  • Willem Maetens
  • Jean Poesen
  • Benediktas Jankauskas
  • Genovaite Jankauskiene
  • Gert Verstraeten
  • Joris de Vente
SEDIMENTS, SEC 3 · HILLSLOPE AND RIVER BASIN SEDIMENT DYNAMICS · RESEARCH ARTICLE

Abstract

Purpose

This study aims to understand better the relationship between measured soil loss rates due to sheet and rill erosion (SL), predicted SL rates and measured catchment sediment yields (SY) in Europe.

Materials and methods

Analyses were based on a recently established database of measured annual SY for 1794 catchments, a database of 777 annual SL rates measured on runoff plots and two recent maps of predicted sheet and rill erosion rates in Europe (i.e. one based on empirical extrapolations of measured SL data and one based on the PESERA model). To identify regional trends, all data were grouped into eight climatic zones.

Results and discussion

Measured SL rates are generally a factor of five to ten times larger than predicted SL rates and are strongly biased towards erosion-prone situations in terms of land use. Also measured SY are generally higher than predicted SL rates, especially in the Mediterranean and Alpine regions where SY is generally ten times higher than predicted SL rates. This illustrates the importance of other erosion processes contributing to SY. Regional differences in the importance of these processes and their implications are discussed.

Conclusions

This study confirms previous findings indicating the relatively low sheet and rill erosion rates compared to SY in the Mediterranean region and illustrates the importance of other erosion processes contributing to SY in most regions of Europe. This indicates that hillslope erosion rates cannot be used directly to estimate SY, and consequently soil conservation programmes should focus more on the dominant erosion processes in each catchment.

Keywords

Plot soil loss Scale dependency Sediment sources Sheet and rill erosion Soil erosion model 

Notes

Acknowledgments

The research described in this paper was conducted within the framework of the EC-DG RTD-6th Framework Research Programme (sub-priority 1.1.6.3)–Research on Desertification—project DESIRE (037046): Desertification Mitigation and Remediation of land—a global approach for local solutions. M. Vanmaercke received grant-aided support from the Research Foundation—Flanders (FWO), Belgium. The authors wish to thank the many researchers and institutes who provided data, publications or additional information on the sediment yield and soil loss rate measurements discussed in this study. Furthermore, this manuscript benefited a lot from the constructive comments of three anonymous reviewers.

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Copyright information

© Springer-Verlag 2012

Authors and Affiliations

  • Matthias Vanmaercke
    • 1
    • 2
  • Willem Maetens
    • 1
  • Jean Poesen
    • 1
  • Benediktas Jankauskas
    • 3
  • Genovaite Jankauskiene
    • 3
  • Gert Verstraeten
    • 1
  • Joris de Vente
    • 4
  1. 1.Division of GeographyKU LeuvenHeverleeBelgium
  2. 2.Research Foundation Flanders (FWO)BrusselsBelgium
  3. 3.Kaltinenai Research StationLithuanian Research Centre of Agriculture and ForestryKaltinenaiLithuania
  4. 4.Soil Erosion and Conservation Research GroupCentro de Edafología y Biologia Aplicada del Segura CEBAS-CSICMurciaSpain

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