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    Contributions of soil chemical and physical properties in the dynamics of soil quality in the southern Cameroon plateau shifting agricultural landscape

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    U18ArtNyeckContributionsNothomDev.pdf (801.6Kb)
    Date
    2018-04
    Author
    Nyeck, B.
    Mbogba, M.N.
    Njilah, I.K.
    Yemefack, M.
    Bilong, P.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Soil quality results from combination of chemical, physical and biological characteristics; according to ecosystems, some of these aspects become dominant. This Study was carried out on soils under 08 land cover types in the southern Cameroon ((bare soil with burned vegetation (FR1), bare soil with unburned vegetation (FR), Chromolaena odorata fallow (JC), bush ligneous fallow (JR), secondary forest (FS), primary forest (FC), Gilbertiodendron dewevei forest (FG), and raffia forest (RA) to assess the contributions of soil chemical and physical indicators into global soil quality index (IQSg). Topsoil samples were analyzed for physico-chemical characterizations and IQSg computed. Multiples statistical tests were used to compare the contribution of soil quality indicators and to select those that contributed the most in IQSg. Thus, under FR1, FC, FG and RA, IQSg was relatively high and the main contributors were chemical, estimated at more than 70%. Under FR, IQSg remains high and chemical contribution predominant (65%) on physical (35%). On the contrary, under fallows, IQSg is relatively low; these two types of contributions are nearly equivalents. Thus, the main indicators helping to assess IQSg in lower cost, contributing significantly to global soil quality and representatives of indicators are: organic matter (MO), pHw, and C/N ratio. The difference in contribution is due to the types of cultural practices, quality and quantity of MO brought by land cover types and topographical position.
    https://dx.doi.org/10.1016/j.aoas.2018.05.006
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/4384
    Non-IITA Authors ORCID
    Martin YEMEFACKhttps://orcid.org/0000-0002-6709-8503
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1016/j.aoas.2018.05.006
    IITA Subjects
    Soil Fertility; Soil Health
    Agrovoc Terms
    Soil; Land Cover; Shifting Cultivation; Fallow; Soil Chemicophysical Properties
    Regions
    Africa; Central Africa
    Countries
    Cameroon
    Journals
    International Journal of Biological and Chemical Sciences
    Collections
    • Journal and Journal Articles4835
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