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| Blecker, S.W.; STILLINGS, L.L.; MCAMACHER, M.C.; Ippolito, J.A.; DECRAPPEO, N.M.. |
| Soil quality indices are often management driven and attempt to describe key relationships between above- and below-ground parameters. In terrestrial systems, indices that were initially developed and modified for agroecosystems have been applied to non-agricultural systems in increasing number. We developed a soil quality index in arid and semi-arid ecosystems of the Western US impacted by different types of geologic mineralization using the relationship between vegetation community parameters and soil abiotic and biotic properties. We analyzed these relations in soils associated with three different mineralization types: podiform chromite, Copper/Molybdenum porphyry, and acid-sulfate gold vein systems at four different sites in California and Nevada.... |
| Tipo: Article |
Palavras-chave: Soil quality; Soil. |
| Ano: 2012 |
URL: http://eprints.nwisrl.ars.usda.gov/1448/1/1413..pdf |
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| Blecker, S.W.; STILLINGS, L.L.; AMACHER, M.C.; Ippolito, J.A.; DECRAOPPEO, N.M.. |
| Soil quality indices provide a means of distilling large amounts of data into a single metric that evaluates the soil’s ability to carry out key ecosystem functions. Primarily developed in agroecosytems, then forested ecosystems, we set out to develop and apply an index using the relation between soil organic matter and key soil abiotic and biotic properties in more semi-arid of the Western US arid systems impacted by different geologic mineralization types. We studied these relations in three different mineralization types: serpentine, acid sulfate and Cu/Mo porphyry systems at four different sites in California and Nevada. Soil samples were collected from undisturbed soils in both mineralized and nearby unmineralized terrane as well as waste rock and... |
| Tipo: Article |
Palavras-chave: Nitrogen; Soil. |
| Ano: 2012 |
URL: http://eprints.nwisrl.ars.usda.gov/1489/1/1453.pdf |
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