Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/8771
Title: Delineating spatial variations in soil carbon using remotely sensed data: A New England case study
Contributor(s): Garraway, Emma (author); Lamb, David (author)
Publication Date: 2011
Handle Link: https://hdl.handle.net/1959.11/8771
Abstract: Remotely sensed imagery is used in many land management applications to provide rapid, cost-effective and up-to-date information on land condition. This paper examined whether a combination of remote and proximal sensing technologies can be used to identify the spatial variability in shallow (0-30 cm) soil organic carbon (SOC) content of soils in an agricultural land system. A demonstrator section of farming land in the northern tablelands region of NSW was used to test the hypothesis that "typical" land management agency datasets associated with landform, geology and land cover, coupled with precision agriculture sensing technologies for measuring apparent soil electrical conductivity and photosynthetically active biomass, can be used to delineate zones of %SOC. SOC explained 47% of the variance when all landscape variables were combined but when an upper limit of only four variables was applied this dropped to 33 %. When the landscape was stratified into vegetation and topography zones however, %SOC was found to explain up to 98% of a combination of proximal plant reflectance (red band), normalised difference vegetation index (NDVI) measurements of the pasture species, and the elevation.
Publication Type: Conference Publication
Conference Name: Engineers Australia Newcastle Division 2011 Regional Convention - Sustaining Our Regions: The Engineering Challenge, Armidale, Australia, 16th - 18th September, 2011
Conference Details: Engineers Australia Newcastle Division 2011 Regional Convention - Sustaining Our Regions: The Engineering Challenge, Armidale, Australia, 16th - 18th September, 2011
Source of Publication: Sustaining Our Regions: The Engineering Challenge - Proceedings of the 2011 Regional Convention, Newcastle Division, Engineers Australia, p. 45-52
Publisher: Newcastle Division, Engineers Australia
Place of Publication: Newcastle, Australia
Field of Research (FOR): 050301 Carbon Sequestration Science
050206 Environmental Monitoring
070104 Agricultural Spatial Analysis and Modelling
Peer Reviewed: Yes
HERDC Category Description: E1 Refereed Scholarly Conference Publication
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