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Villa, P., Bolpagni, R., Pinardi, M., Tóth V. R.
Leaf reflectance and traits (photophysiology parameters, pigments, structure) measured over six floating and emergent macrophyte species in European wetlands across different phenological stages, seasons, and environmental conditions
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Dataset connected to article:
Villa, P., Bolpagni, R., Pinardi, M. et al. Leaf reflectance can surrogate foliar economics better than physiological traits across macrophyte species. Plant Methods 17, 115 (2021). https://doi.org/10.1186/s13007-021-00816-4

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Data Descriptions:


Field name				Description
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ID					unique sample ID that can be used to join traits and spectra data 
code					leaf sample code relating to in situ plot where leaves were collected and measured
USDAsymbol				USDA code for macrophyte species sampled (L. hexapetala, N. nucifera, N. lutea, N. alba, P. australis, T. natans)
year					year of sampling (2016, 2017, 2018)
Lake1					site of sampling (Kis-Balaton, Mantova, Varese)


Photophysiological parameters*		Description
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alpha					maximum quantum yield for whole chain electron transport
ETRmax					maximum electron transport rate of the photosystem II
Ik					theoretical saturation light intensity
Fv_Fm					photochemical PSII efficiency
qN					coefficient of non-photochemical quenching
qP					coefficient of photochemical quenching

*derived from chlorophyll fluorescence measured with a PAM-2500 chlorophyll fluorometer (Heinz Walz GmbH, Germany)


Pigments**				Description
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CaS					Chl-a on leaf area basis (µg cm−2)
CbS					Chl-b on leaf area basis (µg cm−2)
CxcS					total carotenoids on leaf area basis (µg cm−2)
Ca_Cb					Chl-a to Chl-b ratio
Cab_Cxc					Chlorophylls to Carotenoids ratio

**derived from spectrophotometric readings of absorbance of leaf extracts in acetone 80%


Structure				Description
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DMC					dry matter content on leaf weight (g g-1)
LMA					leaf mass per area (g cm−2)


Spectra				
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Leaf spectra were measured using a portable full range spectroradiometer (SR-3500, Spectral Evolution, Lawrence, USA), with a contact probe. During measurements, leaves were laid on a flat neoprene plate (reflectance factor < 5%) to minimize background reflection of light transmitted through the leaves. Leaf spectra were calibrated to reflectance using reflected radiance from a Spectralon panel.