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@ARTICLE{Bandopadhyay:864597,
author = {Bandopadhyay, Subhajit and Rastogi, Anshu and Rascher, Uwe
and Rademske, Patrick and Schickling, Anke and Cogliati,
Sergio and Julitta, Tommaso and Mac Arthur, Alasdair and
Hueni, Andreas and Tomelleri, Enrico and Celesti, Marco and
Burkart, Andreas and Stróżecki, Marcin and Sakowska,
Karolina and Gąbka, Maciej and Rosadziński, Stanisław and
Sojka, Mariusz and Iordache, Marian-Daniel and Reusen, Ils
and Van Der Tol, Christiaan and Damm, Alexander and
Schuettemeyer, Dirk and Juszczak, Radosław},
title = {{H}yplant-{D}erived {S}un-{I}nduced {F}luorescence—{A}
{N}ew {O}pportunity to {D}isentangle {C}omplex {V}egetation
{S}ignals from {D}iverse {V}egetation {T}ypes},
journal = {Remote sensing},
volume = {11},
number = {14},
issn = {2072-4292},
address = {Basel},
publisher = {MDPI},
reportid = {FZJ-2019-04307},
pages = {1691 -},
year = {2019},
abstract = {Hyperspectral remote sensing (RS) provides unique
possibilities to monitor peatland vegetation traits and
their temporal dynamics at a fine spatial scale. Peatlands
provide a vital contribution to ecosystem services by their
massive carbon storage and wide heterogeneity. However,
monitoring, understanding, and disentangling the diverse
vegetation traits from a heterogeneous landscape using
complex RS signal is challenging, due to its wide
biodiversity and distinctive plant species composition. In
this work, we aim to demonstrate, for the first time, the
large heterogeneity of peatland vegetation traits using
well-established vegetation indices (VIs) and Sun-Induced
Fluorescence (SIF) for describing the spatial heterogeneity
of the signals which may correspond to spatial diversity of
biochemical and structural traits. SIF originates from the
initial reactions in photosystems and is emitted at
wavelengths between 650–780 nm, with the first peak at
around 687 nm and the second peak around 760 nm. We used the
first HyPlant airborne data set recorded over a
heterogeneous peatland area and its surrounding ecosystems
(i.e., forest, grassland) in Poland. We deployed a
comparative analysis of SIF and VIs obtained from
differently managed and natural vegetation ecosystems, as
well as from diverse small-scale peatland plant communities.
Furthermore, spatial relationships between SIF and VIs from
large-scale vegetation ecosystems to small-scale peatland
plant communities were examined. Apart from signal
variations, we observed a positive correlation between SIF
and greenness-sensitive VIs, whereas a negative correlation
between SIF and a VI sensitive to photosynthesis was
observed for large-scale vegetation ecosystems. In general,
higher values of SIF were associated with higher biomass of
vascular plants (associated with higher Leaf Area Index
(LAI)). SIF signals, especially SIF760, were strongly
associated with the functional diversity of the peatland
vegetation. At the peatland area, higher values of SIF760
were associated with plant communities of high perennials,
whereas, lower values of SIF760 indicated peatland patches
dominated by Sphagnum. In general, SIF760 reflected the
productivity gradient on the fen peatland, from
Sphagnum-dominated patches with the lowest SIF and fAPAR
values indicating lowest productivity to the Carex-dominated
patches with the highest SIF and fAPAR values indicating
highest productivity.},
cin = {IBG-2},
ddc = {620},
cid = {I:(DE-Juel1)IBG-2-20101118},
pnm = {582 - Plant Science (POF3-582)},
pid = {G:(DE-HGF)POF3-582},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000480527800061},
doi = {10.3390/rs11141691},
url = {https://juser.fz-juelich.de/record/864597},
}