• Contact Us
    • Send Feedback
    • Login
    View Item 
    •   Home
    • Journal and Journal Articles
    • Journal and Journal Articles
    • View Item
    •   Home
    • Journal and Journal Articles
    • Journal and Journal Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    Whole Repository
    CollectionsIssue DateRegionCountryHubAffiliationAuthorsTitlesSubject
    This Sub-collection
    Issue DateRegionCountryHubAffiliationAuthorsTitlesSubject

    My Account

    Login

    Welcome to the International Institute of Tropical Agriculture Research Repository

    What would you like to view today?

    Myths about slash and burn in physical degradation of savanna soils: impacts on Vertisols in north Cameroon

    Thumbnail
    View/Open
    S03ArtObaleebangaMythsInthomDev.pdf (90.64Kb)
    Date
    2003-03
    Author
    Obale‐Ebanga, F.
    Sevink, J.
    Groot, W. de
    Nolte, C.
    Type
    Journal Article
    Journal Article
    Metadata
    Show full item record
    Abstract/Description
    A study was conducted to assess the impact of agricultural land use history on macro-aggregate (4.0–4.8 mm) stability in the 0–5 cm layers of Chromic and ‘Hydromorphic’ Vertisols in north Cameroon. Macroaggregate stability to water drop impact was determined and the ASI50 index calculated. Macroaggregates from fallow and zero-tilled cropped soils disaggregated in a stepwise manner. Macroaggregates from ploughed cropped soils collapsed in one step into semi-liquefied microaggregates and primary particles. On both soil types, the ASI50 index of samples from ploughed land was 10.0 mJ, compared to 16.4– 21.9 mJ from zero-tilled slash and burn land use. The stepwise disintegration of macroaggregates indicated the existence of a hierarchy of aggregation within the size range 2–5 mm. Slash and burn land use on zero-tilled Vertisols significantly increased sand-sized organic carbon content and the stability of macroaggregates to water impact.
    https://doi.org/10.1111/j.1475-2743.2003.tb00284.x
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/4170
    Digital Object Identifier (DOI)
    https://doi.org/10.1111/j.1475-2743.2003.tb00284.x
    IITA Subjects
    Farming Systems
    Agrovoc Terms
    Vertisols; Aggregate; Stability; Land Use; Shifting Cultivation
    Regions
    Africa; Central Africa
    Countries
    Cameroon
    Collections
    • Journal and Journal Articles4839
    copyright © 2019  IITASpace. All rights reserved.
    IITA | Open Access Repository