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231224s2015 xx |||||o 00| ||eng c |
| 024 |
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|a 10.1111/nph.13524
|2 doi
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|a pubmed24n0833.xml
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|a DE-627
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|a eng
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| 100 |
1 |
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|a Malenovský, Zbyněk
|e verfasserin
|4 aut
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| 245 |
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|a Antarctic moss stress assessment based on chlorophyll content and leaf density retrieved from imaging spectroscopy data
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|c 2015
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 20.06.2016
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2015 The Authors New Phytologist © 2015 New Phytologist Trust.
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|a The health of several East Antarctic moss-beds is declining as liquid water availability is reduced due to recent environmental changes. Consequently, a noninvasive and spatially explicit method is needed to assess the vigour of mosses spread throughout rocky Antarctic landscapes. Here, we explore the possibility of using near-distance imaging spectroscopy for spatial assessment of moss-bed health. Turf chlorophyll a and b, water content and leaf density were selected as quantitative stress indicators. Reflectance of three dominant Antarctic mosses Bryum pseudotriquetrum, Ceratodon purpureus and Schistidium antarctici was measured during a drought-stress and recovery laboratory experiment and also with an imaging spectrometer outdoors on water-deficient (stressed) and well-watered (unstressed) moss test sites. The stress-indicating moss traits were derived from visible and near infrared turf reflectance using a nonlinear support vector regression. Laboratory estimates of chlorophyll content and leaf density were achieved with the lowest systematic/unsystematic root mean square errors of 38.0/235.2 nmol g(-1) DW and 0.8/1.6 leaves mm(-1) , respectively. Subsequent combination of these indicators retrieved from field hyperspectral images produced small-scale maps indicating relative moss vigour. Once applied and validated on remotely sensed airborne spectral images, this methodology could provide quantitative maps suitable for long-term monitoring of Antarctic moss-bed health
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Bryum pseudotriquetrum
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| 650 |
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4 |
|a Ceratodon purpureus
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| 650 |
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4 |
|a Schistidium antarctici
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| 650 |
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|a hyperspectral remote sensing
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| 650 |
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|a leaf density (LD)
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| 650 |
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4 |
|a moss chlorophyll content (Cab)
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| 650 |
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|a stress imaging spectroscopy
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| 650 |
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|a turf water content (TWC)
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| 650 |
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|a Water
|2 NLM
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| 650 |
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|a 059QF0KO0R
|2 NLM
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| 650 |
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|a Chlorophyll
|2 NLM
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| 650 |
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|a 1406-65-1
|2 NLM
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| 650 |
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|a chlorophyll b
|2 NLM
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| 650 |
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|a 5712ZB110R
|2 NLM
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| 650 |
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|a Chlorophyll A
|2 NLM
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| 650 |
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7 |
|a YF5Q9EJC8Y
|2 NLM
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| 700 |
1 |
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|a Turnbull, Johanna D
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lucieer, Arko
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Robinson, Sharon A
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 208(2015), 2 vom: 30. Okt., Seite 608-24
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
1 |
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|g volume:208
|g year:2015
|g number:2
|g day:30
|g month:10
|g pages:608-24
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|u http://dx.doi.org/10.1111/nph.13524
|3 Volltext
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