Soil-dependent spectral response in a developing plant canopy

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dc.contributor.author Huete, Alfredo en_US
dc.contributor.editor en_US
dc.date.accessioned 2011-02-07T06:21:43Z
dc.date.available 2011-02-07T06:21:43Z
dc.date.issued 1987 en_US
dc.identifier 2009001356 en_US
dc.identifier.citation Huete Alfredo 1987, 'Soil-dependent spectral response in a developing plant canopy', American Society of Agronomy, Inc, vol. 79, no. 1, pp. 31-68. en_US
dc.identifier.issn 0002-1962 en_US
dc.identifier.other C1UNSUBMIT en_US
dc.identifier.uri http://hdl.handle.net/10453/13441
dc.description.abstract Amajor problem in the use of remote sensing techniques to assess plant biomass and condition over incomplete canopies concerns the soil background contribution toward measured spectral response. An understanding of this soil signal is essential 10 better relate canopy spectra with plant properties. An interactive, plant-soil radiant flux model was developed to separate spectral variations associated with soil background from those attrlbutable to vegetation. Field measured spectra taken over It developing cotton (Gossypinm hirsutum L.) canopy with four soil types (Cumnlic Cryoboroll, Typic TorriHuvent, Ustollic Haplargid, and Typic Calciorthid) alternately inserted underneath were decomposed into soil and vegetation spectra by utilizing the model in It principal component analysis. The soil component included all radiation penetrating the canopy and inter~ acting with the underlying soil. The vegetation compOnent repre? seoted all radiation reflected directly from the plant tover with no soil interaction. The soil component was found to resemble the spectral response of green vegetation due to the scattering and trans-mittance properties of the overlying plant canopy. Results show how the soil signal mixes into various vegetation indices inhibiting reliable vegetation discrimination. The potential improvements in veg? etation analysis that can result from filtering soil background response from planHanopy spectra are also discussed. en_US
dc.language en_US
dc.publisher American Society of Agronomy, Inc en_US
dc.relation.isbasedon http://dx.doi.org/10.2134/agronj1987.00021962007900010007x en_US
dc.title Soil-dependent spectral response in a developing plant canopy en_US
dc.parent Agronomy Journal en_US
dc.journal.volume 79 en_US
dc.journal.number 1 en_US
dc.publocation United States en_US
dc.identifier.startpage 31 en_US
dc.identifier.endpage 68 en_US
dc.cauo.name SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 070300 en_US
dc.personcode 108636 en_US
dc.percentage 100 en_US
dc.classification.name Crop and Pasture Production en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
dc.description.keywords Remote sensing, Principal component analysis, Cotton, G03Sypium Irirsutum L. en_US
dc.staffid 108636 en_US


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