soils
TRANSCRIPT
Soil and Landscape Grid of Australia Presentation by Mike Grundy, CSIRO
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Purpose of FacilityA fine-scale, nationally comprehensive and consistent grid of soil
functional attributes – a new form of national soil information which meets the need of ecosystem process and modelling science and which is integrated with developments in earth observation and earth system science.
Key Questions being AddressedHow are the key soil drivers of ecosystem function distributed in space?
What is the uncertainty of our estimates of these functions?
What is the spatial arrangement of soil attribute depth curves in Australia?
What is the representativeness and generality of ecosystems processes observed at a site (with national climate and remote sensing grids)
Infrastructure to be DeliveredGrid-based fine, consistent and comprehensive soil information system at
a resolution of 3 arcsec;
Mapped estimates of key functional soil attributes (organic carbon, total P, soil texture, coarse fragments, pH, depth to bedrock, effective soil depth, bulk density, available water holding capacity and significant landform elements);
Curves of depth relationships of these attributes;
Soil covariates including landform and gamma radiometrics;
Uncertainty estimates for each attribute expressed as estimation bounds
On-line mapping access
A pilot example:
pH for South Australian soils with the depth relationship now expressed as a mass-preserving spline:
Soil profile data-variable intervals-missing data
Fit spline
Depth spline function
Standarddepthmean
Standard depths
Our plan for community engagement
Communication plan developed with the main project plan
Oversight by National Committee on Soil and Terrain
National Soil Information Symposia – first in late 2011
Informal ad hoc meetings
Interactive web presence (through the ACLEP and ASRIS sites)
Collaborating organisations
University of SydneyGeoscience AustraliaCSIRODPI VicDERM Qld
DPIW TasDECCW NSWDENR SADNREA NTAgric WA
AcknowledgementsNational Committee on Soil and Terrain – members from each State and Territory, Universities and Federal Govt
Facility Contact DetailsDirector: Mike Grundy ([email protected])Information contact: Peter Wilson ([email protected])Communications: Claire Harris ([email protected])