Is percent ‘projected natural vegetation soil carbon’ a useful indicator of soil condition?

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dc.contributor.authorWaring, CLen_AU
dc.contributor.authorStockmann, Uen_AU
dc.contributor.authorMalone, BPen_AU
dc.contributor.authorWhelan, Ben_AU
dc.contributor.authorMcBratney, ABen_AU
dc.date.accessioned2017-05-03T06:21:45Zen_AU
dc.date.available2017-05-03T06:21:45Zen_AU
dc.date.issued2014-03-03en_AU
dc.date.statistics2017-01-19en_AU
dc.description.abstractThe concentration of Soil Organic Carbon (SOC) is often used as an indicator of soil condition and soil health. To be useful as an indicator, SOC must be considered in context, with soil type, climatic region, local rainfall, slope, and land use history influencing measured amounts of SOC. The concept of Percent Projected Natural Vegetation Soil Carbon (PNVSC) implicitly incorporates these context variables. Percent PNVSC is defined as a simple percentage comparing the contemporary measured soil carbon against a hypothetical amount of soil carbon that would be observed in the local landscape today, if the areas under managed agroecosystems remained under natural vegetation (which in this study is dry sclerophyll forest). The term ‘natural’ used in the PNVSC concept approximates with the natural system prior to agrarian settlement. Percent PNVSC was calculated for a 22,000 ha sub-catchment of the Hunter Valley, Australia and it showed a spatially weighted average of 73, indicating substantial soil carbon loss as a result of cumulative land use change over more than 100 years. The Percent PNVSC map highlights changes in soil carbon distribution across the landscape with mid-slope positions lower in the catchment showing the greatest loss of soil carbon. Viticulture has resulted in half of the original SOC being lost, compared to a 75 % PNVSC for unimproved pasture and an 83 % PNVSC for improved pasture. Average soil carbon loss due to mixed land-use change in this sub-catchment is 13,331 kg C/ha. © 2014, Springer International Publishing Switzerland.en_AU
dc.identifier.booktitleSoil Carbonen_AU
dc.identifier.citationWaring, C., Stockmann, U., Malone, B., Whelan, B., & McBratney, A. (2014). Is percent ‘projected natural vegetation soil carbon’ a useful indicator of soil condition? In A. E. Hartemink & K. McSweeney (Eds.), Soil Carbon (pp. 219-227). Switzerland Springer.en_AU
dc.identifier.editorsA. E. Hartemink & K. McSweeneyen_AU
dc.identifier.govdoc7802en_AU
dc.identifier.pagination219-227en_AU
dc.identifier.placeofpublicationDordrecht, Switzerlanden_AU
dc.identifier.urihttp://link.springer.com/chapter/10.1007/978-3-319-04084-4_23/fulltext.htmlen_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/8664en_AU
dc.language.isoenen_AU
dc.publisherSpringeren_AU
dc.subjectSoilsen_AU
dc.subjectCarbonen_AU
dc.subjectClimatesen_AU
dc.subjectAustraliaen_AU
dc.subjectLand useen_AU
dc.titleIs percent ‘projected natural vegetation soil carbon’ a useful indicator of soil condition?en_AU
dc.typeBook chapteren_AU
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