Hyperspectral Reflectance as an Indicator of Foliar Nutrient Levels in Hybrid Poplar Clone OP-367 Grown on Biosolid Amended Soil

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dc.contributor.advisorFelton, Garyen_US
dc.contributor.authorGriffeth, Tommyen_US
dc.contributor.departmentBiological Resources Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2009-07-03T05:46:21Z
dc.date.available2009-07-03T05:46:21Z
dc.date.issued2009en_US
dc.description.abstractTrees of the genus Populus are fast growing trees that require considerable amounts of water and nutrients to meet physiological growth demands. The determination of correlations between hybrid poplar leaf spectral reflectance in the 325-1100 nm range, laboratory foliar analysis of leaf macronutrient and micronutrient concentrations, and leaf water potential datasets were analyzed using Full Cross-Validation and Test Set Models via the partial least squares (PLS) method of regression analysis. Based on an evaluation of the slope of the Predicted vs. Measured regression line, the root mean squared error (RMSE), and r-squared, the majority of the models constructed did not adequately model foliar concentrations from spectral data. However, the models for H, N, P, K, Cu and Al had values (slope of the Predicted vs. Measured regression line greater than 0.50 and r-squared values greater than 0.50 in at least one type of model) that warrant future study.en_US
dc.format.extent18118528 bytes
dc.format.extent2839552 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypeapplication/vnd.ms-excel
dc.identifier.urihttp://hdl.handle.net/1903/9363
dc.language.isoen_US
dc.subject.pqcontrolledEngineering, Agriculturalen_US
dc.subject.pquncontrolledBiosolidsen_US
dc.subject.pquncontrolledFoliar Analysisen_US
dc.subject.pquncontrolledHybrid Poplaren_US
dc.subject.pquncontrolledPartial Least Squaresen_US
dc.subject.pquncontrolledReflectanceen_US
dc.titleHyperspectral Reflectance as an Indicator of Foliar Nutrient Levels in Hybrid Poplar Clone OP-367 Grown on Biosolid Amended Soilen_US
dc.typeThesisen_US

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