Research@Lincoln
    • Login
     
    View Item 
    •   Research@Lincoln Home
    • Faculty of Agriculture and Life Sciences
    • Department of Soil and Physical Sciences
    • View Item
    •   Research@Lincoln Home
    • Faculty of Agriculture and Life Sciences
    • Department of Soil and Physical Sciences
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Small-scale spatial variability of selected soil biological properties

    Stark, Christine H. E.; Condron, Leo M.; Stewart, Alison; Di, Hong J.; O'Callaghan, M.
    Abstract
    A strategy for sampling soil from intact monolith lysimeters was established based on measurements of spatial heterogeneity within the lysimeter area. This was part of an ongoing study to determine relationships between soil microbial diversity and nutrient loss by leaching. The sampling protocol had to allow collection of soil on a regular basis (as opposed to destructive sampling) and ensure high spatial independence of subsamples. On each of the two sites (one developed under organic crop management and the other under conventional crop management), ten 15 cm soil cores (sampling points) were taken from three areas (replicates) of 50 cm diameter (lysimeter surface area) and separately analysed for biotic (microbial biomass carbon and nitrogen; arginine deaminase activity) and abiotic (total carbon and nitrogen) soil properties. The data were tested for variability, expressed as coefficient of variance (biotic and abiotic), and spatial heterogeneity using geostatistics (biotic properties). The biotic soil properties showed significant differences among sampling points, whereas the abiotic parameters were useful in differentiating on a larger scale, i.e. between sites. For all soil properties tested, the differences among the replicates were smaller than those between the sites or among points indicating that, in the main experiment, all treatments can be sampled following the same pattern. Geostatistical analysis and fitting of an exponential model showed that a spatial structure exists in the biotic soil properties and that the samples are independent beyond separation distances of 25–30 cm. A revised sampling pattern consisting of 11 samples per lysimeter is described.... [Show full abstract]
    Keywords
    small-scale spatial variability; intact monolith lysimeters; sampling pattern; microbial biomass carbon; microbial biomass nitrogen; arginine deaminase activity; Agronomy & Agriculture
    Fields of Research
    05 Environmental Sciences; 06 Biological Sciences; 07 Agricultural and Veterinary Sciences
    Date
    2004-04
    Type
    Journal Article
    Collections
    • Department of Soil and Physical Sciences [406]
    Share this

    on Twitter on Facebook on LinkedIn on Reddit on Tumblr by Email

    Thumbnail
    View/Open
    small-scale_spatial_variability.pdf
    DOI
    https://doi.org/10.1016/j.soilbio.2003.12.005
    Metadata
     Expand record
    Copyright © 2004 Elsevier Ltd. All rights reserved.
    Citation
    Stark, C. H. E., Condron, L. M., Stewart, A., Di, H. J., & O'Callaghan, M. (2004). Small-scale spatial variability of selected soil biological properties. Soil Biology and Biochemistry, 36(4), 601-608.
    This service is managed by Learning, Teaching and Library
    • Archive Policy
    • Copyright and Reuse
    • Deposit Guidelines and FAQ
    • Contact Us
     

     

    Browse

    All of Research@LincolnCommunities & CollectionsTitlesAuthorsKeywordsBy Issue DateThis CollectionTitlesAuthorsKeywordsBy Issue Date

    My Account

    LoginRegister

    Statistics

    View Usage Statistics
    This service is managed by Learning, Teaching and Library
    • Archive Policy
    • Copyright and Reuse
    • Deposit Guidelines and FAQ
    • Contact Us