The effects of soil conservation on sediment yield and sediment source dynamics in a catchment in southern Brazil

Gustavo H. Merten, Jean P.G. Minella, Michele Moro, Clamarion Maier, Elemar A. Cassol, Desmond E. Walling, Robin T. Clarke, José Miguel Reichert

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Scopus citations

Abstract

This paper presents a synthesis of results from a hydrosedimentometric monitoring programme in a small rural catchment (1.19 km2) that has undergone significant changes in soil management, which have altered sediment yield and source dynamics. The study is based on repeated surveys of land management, rainfall, water discharge, and sediment yield, as well source tracing investigations undertaken over a period of seven years. During this period, the catchment has undergone a transformation in soil management. Erosion rates in the farmed areas have responded to these management changes, with an almost 75% reduction in sediment yield compared with pre-management conditions. The primary sediment sources in the catchment include cropped fields, unpaved roads, and natural channels. Sediment source dynamics demonstrate significant contrasts between the periods before and after the introduction of conservation practices.

Original languageEnglish (US)
Title of host publicationSediment Dynamics for a Changing Future
Pages59-67
Number of pages9
StatePublished - Dec 1 2010
EventSymposium on Sediment Dynamics for a Changing Future - Warsaw, Poland
Duration: Jun 14 2010Jun 18 2010

Publication series

NameIAHS-AISH Publication
Volume337
ISSN (Print)0144-7815

Other

OtherSymposium on Sediment Dynamics for a Changing Future
CountryPoland
CityWarsaw
Period6/14/106/18/10

Keywords

  • Catchment monitoring
  • Sediment source tracing
  • Sediment yield
  • Soil conservation
  • Tobacco cultivation

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  • Cite this

    Merten, G. H., Minella, J. P. G., Moro, M., Maier, C., Cassol, E. A., Walling, D. E., Clarke, R. T., & Reichert, J. M. (2010). The effects of soil conservation on sediment yield and sediment source dynamics in a catchment in southern Brazil. In Sediment Dynamics for a Changing Future (pp. 59-67). (IAHS-AISH Publication; Vol. 337).