Leaf spectral reflectance and transmittance, San Lorenzo, Panama, 2020

Author(s): Lamour J; Davidson K; Ely K; Anderson J; Rogers A; Serbin S

Site ID: PA-SLZ

Site Name: Bosque Protector San Lorenzo (Fort Sherman)

Variables: Leaf spectra

Date Range: Jan. 14, 2020 - March 13, 2020

Description: This data package contains full-range (350 – 2500 nm) leaf reflectance and transmittance spectra of leaves collected at the San Lorenzo forest canopy crane site in Panama (PA-SLZ) from January to March 2020. Around 1000 leaves were measured from 50 species and various leaf phenological stages. Leaves were sampled from both the top of the canopy and multiple heights within the canopy from 10 vertical profiles and for six core species, from the top of the canopy. This data package includes processed leaf spectra (*.csv), and raw data from the spectroradiometer (compressed as .zip). Metadata files include data descriptions (_dd.csv) for tabular data and sample information and a description of the field campaign protocol (PA-SLZ_2020_Protocol.pdf). In addition to the leaf spectral measurements included here, these samples were also used for measurement of leaf gas exchange, carbon and nitrogen content and leaf mass per unit leaf area (LMA) contained in related data packages.

QA/QC: Full QA-QC

Methods Description: Full range (350 – 2500 nm) spectral reflectance and transmittance was measured on leaf samples using two spectrometers with a leaf clip or an integrating sphere. The reflectance was measured in situ at different elevations inside the canopy, or ex situ on cut branches that were brought to the ground. For the ex situ branches the transmittance was also measured with an integrating sphere. A complete description of the site study, design of experiment and spectroscopy measurements is included in ‘PA-SLZ_2020_Protocol.pdf’.

Access Level: Public

Originating Institution(s): Brookhaven National Laboratory

Sponsor Organization(s): None

Contact: Serbin, Shawn - Brookhaven National Laboratory (sserbin@bnl.gov)

Version: 1.0

Dataset Citation: Lamour J; Davidson K; Ely K; Anderson J; Rogers A; Serbin S (2021): Leaf spectral reflectance and transmittance, San Lorenzo, Panama, 2020. 1.0. NGEE Tropics Data Collection. (dataset). http://dx.doi.org/10.15486/ngt/1781003

Acknowledgement: This research was supported as part of NGEE-Tropics, funded by the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research under contract no. DE-SC0012704.

Data Link: Download Dataset

Lamour J, Davidson KJ, Ely KS, Anderson JA, Rogers A, Wu J, et al. (2021) Rapid estimation of photosynthetic leaf traits of tropical plants in diverse environmental conditions using reflectance spectroscopy. PLoS ONE 16(10): e0258791. https://doi.org/10.1371/journal.pone.0258791