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Article: Spectral absorption features as indicators of water status in coast live oak (Quercus agrifolia) leaves
Title | Spectral absorption features as indicators of water status in coast live oak (Quercus agrifolia) leaves |
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Authors | |
Issue Date | 2003 |
Citation | International Journal of Remote Sensing, 2003, v. 24, n. 9, p. 1799-1810 How to Cite? |
Abstract | A total of 139 reflectance spectra (between 350 and 2500 nm) from coast live oak (Quercus agrifolia) leaves were measured in the laboratory with a spectrometer FieldSpec®Pro FR. Correlation analysis was conducted between absorption features, three-band ratio indices derived from the spectra and corresponding relative water content (RWC, %) of oak leaves. The experimental results indicate that there exist linear relationships between the RWC of oak leaves and absorption feature parameters: wavelength position (WAVE), absorption feature depth (DEP), width (WID) and the multiplication of DEP and WID (AREA) at the 975 nm, 1200 nm and 1750 nm positions and two three-band ratio indices: RATIO975 and RATIO1200, derived at 975 nm and 1200 nm. AREA has a higher and more stable correlation with RWC compared to other features. It is worthy of noting that the two three-band ratio indices. RATIO975 and RATIO1200, may have potential application in assessing water status in vegetation. |
Persistent Identifier | http://hdl.handle.net/10722/296472 |
ISSN | 2023 Impact Factor: 3.0 2023 SCImago Journal Rankings: 0.776 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Pu, R. | - |
dc.contributor.author | Ge, S. | - |
dc.contributor.author | Kelly, N. M. | - |
dc.contributor.author | Gong, P. | - |
dc.date.accessioned | 2021-02-25T15:15:58Z | - |
dc.date.available | 2021-02-25T15:15:58Z | - |
dc.date.issued | 2003 | - |
dc.identifier.citation | International Journal of Remote Sensing, 2003, v. 24, n. 9, p. 1799-1810 | - |
dc.identifier.issn | 0143-1161 | - |
dc.identifier.uri | http://hdl.handle.net/10722/296472 | - |
dc.description.abstract | A total of 139 reflectance spectra (between 350 and 2500 nm) from coast live oak (Quercus agrifolia) leaves were measured in the laboratory with a spectrometer FieldSpec®Pro FR. Correlation analysis was conducted between absorption features, three-band ratio indices derived from the spectra and corresponding relative water content (RWC, %) of oak leaves. The experimental results indicate that there exist linear relationships between the RWC of oak leaves and absorption feature parameters: wavelength position (WAVE), absorption feature depth (DEP), width (WID) and the multiplication of DEP and WID (AREA) at the 975 nm, 1200 nm and 1750 nm positions and two three-band ratio indices: RATIO975 and RATIO1200, derived at 975 nm and 1200 nm. AREA has a higher and more stable correlation with RWC compared to other features. It is worthy of noting that the two three-band ratio indices. RATIO975 and RATIO1200, may have potential application in assessing water status in vegetation. | - |
dc.language | eng | - |
dc.relation.ispartof | International Journal of Remote Sensing | - |
dc.title | Spectral absorption features as indicators of water status in coast live oak (Quercus agrifolia) leaves | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1080/01431160210155965 | - |
dc.identifier.scopus | eid_2-s2.0-0038181115 | - |
dc.identifier.volume | 24 | - |
dc.identifier.issue | 9 | - |
dc.identifier.spage | 1799 | - |
dc.identifier.epage | 1810 | - |
dc.identifier.isi | WOS:000182649700001 | - |
dc.identifier.issnl | 0143-1161 | - |