Leaf sample details, leaf traits by age, Feb2017, PA-SLZ: Panama

This data package contains details of leaves sampled for leaf water potential and gas exchange measurements from the Bosque Protector San Lorenzo (PA-SLZ) NGEE Tropics site in Panama during February of 2017. The sunlit canopy leaves of Apeiba membranacea (APEIME), Guatteria dumetorum (GUATDU), Miconia borealis (MICOBO), Terminalia amazonia (TERMAM), Virola multiflora (VIROSP) and Vochysia ferruginea (VOCHFE) species were collected before dawn and around midday. Data for each sample includes species, age, sample number and a photograph. Within the attached zip file are three Excel files, two containing metadata and a single file with leaf sample data "2017_SLZ_LeafSamples_ByAgeV4.xlsx." Leaf sample photographs are included in "2017_SLZ_LeafSample_PhotosV2.zip". The leaf sampling protocol is described in "NGEE_Tropics_BNL_Leaf_Sample_Protocol.pdf." This data was collected as part of the 2017 BNL–STRI leaf traits by age campaign. See related datasets for leaf water potential, leaf spectra, sap flow, LMA, gas exchange and leaf chemistry. Note that this data packages was updated in May, 2021. The original data package was missing sample photographs. This has been corrected in NGT0045_2017_SLZ_LeafSamples_ByAgeV4.zip. This dataset was originally published on the NGEE Tropics Archive and is being mirrored on ESS-DIVE for long-term archival 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.

本数据包收录了2017年2月于巴拿马圣洛伦佐保护林（Bosque Protector San Lorenzo，PA-SLZ）NGEE Tropics站点开展叶片水势与气体交换测量所采集的叶片详情。本次采集了Apeiba membranacea（APEIME）、Guatteria dumetorum（GUATDU）、Miconia borealis（MICOBO）、Terminalia amazonia（TERMAM）、Virola multiflora（VIROSP）以及Vochysia ferruginea（VOCHFE）的阳生冠层叶片，采样时间为黎明前及正午前后。每份样品数据包含物种信息、样品树龄、样品编号及叶片照片。

附随压缩包内包含3个Excel文件：2个为元数据文件，1个为叶片样品数据文件「2017_SLZ_LeafSamples_ByAgeV4.xlsx」。叶片样品照片存储于「2017_SLZ_LeafSample_PhotosV2.zip」压缩包中。叶片采样方案详见「NGEE_Tropics_BNL_Leaf_Sample_Protocol.pdf」文档。

本数据集采集自2017年BNL–STRI按树龄划分叶片性状研究项目。可参考查阅涵盖叶片水势、叶片光谱、液流、叶面积干重（LMA）、气体交换及叶片化学组分的相关数据集。

请注意，本数据包于2021年5月完成更新。原始数据包缺失样品照片，该问题已在「NGT0045_2017_SLZ_LeafSamples_ByAgeV4.zip」中得到修正。本数据集最初发布于NGEE Tropics档案库，并已镜像至ESS-DIVE以实现长期归档。

致谢：本研究作为NGEE-Tropics项目的一部分开展，由美国能源部科学办公室生物与环境研究局资助（合同号：DE-SC0012704）。