Leaf spectra of alder buckthorn, common hazel and European fly honeysuckle

This dataset includes laboratory spectral measurements on 54 leaves collected from European fly honeysuckle (Lonicera xylosteum L.), alder buckthorn (Frangula alnus Mill.) and common hazel (Corylus avellana L.) in the Viikki arboretum (60◦ 13’N, 25◦ 00’E), in Finland. The measurements were conducted in the darkroom of the remote sensing team at Aalto University (Espoo, Finland) from 5 to 10 July 2023, during the peak growing season. Directional-hemispherical reflectance and transmittance factors were measured at wavelengths from 350 to 2500 nm for adaxial (upper) and abaxial (lower) leaf sides. In addition, we recorded spatial coordinates of each bush and took photographs of the bush, its environment and the sampled branches.

The table "spectral_T_adaxial.csv" contains the directional-hemispherical transmittance factors of the adaxial leaf sides.
The table "spectral_T_abaxial.csv" contains the directional-hemispherical transmittance factors of the abaxial leaf sides.
The table "spectral_R_adaxial.csv" contains the directional-hemispherical reflectance factors of the adaxial leaf sides.
The table "spectral_R_abaxial.csv" contains the directional-hemispherical reflectance factors of the abaxial leaf sides.
The table "description.csv" contains metadata for each sampled leaf.
The file "sample_photos.pdf" contains photographs of the leaves, branches, bushes sampled and their surrounding environment.

For further details on data collection, the measurement process and the content of the data files, see README.pdf.

If using the data, please cite the Mendeley Dataset: Mercier, Audrey; Karlqvist, Susanna; Hovi, Aarne; Rautiainen, Miina (2023), “Leaf spectra of alder buckthorn, common hazel and European fly honeysuckle”, Mendeley Data, V1, doi: 10.17632/3bkrwhk4p3.1

Funding: European Union – NextGenerationEU as part of the Research Council of Finland project ARTISDIG (decision number 348152).

We thank Daniel Richterich, Ellinoora Leivo and Tuomas Peurala for their support in locating the bush species in the Viikki arboretum.

本数据集涵盖了在芬兰维基基植物园（北纬60°13'，东经25°00'）采集的54片欧洲飞金银花（Lonicera xylosteum L.）、白桦刺榛（Frangula alnus Mill.）和普通榛（Corylus avellana L.）的实验室光谱测量数据。测量工作于2023年7月5日至10日在阿尔托大学（埃斯波，芬兰）遥感团队暗室进行，正值生长旺季。测量了叶片正反两面在350至2500纳米波长范围内的方向性半球反射率和透射率。此外，我们还记录了每丛植物的地理坐标，并拍摄了该植物、其周围环境及采样枝条的影像。

“spectral_T_adaxial.csv”表格包含了叶片正面的方向性半球透射率因子。

“spectral_T_abaxial.csv”表格包含了叶片背面的方向性半球透射率因子。

“spectral_R_adaxial.csv”表格包含了叶片正面的方向性半球反射率因子。

“spectral_R_abaxial.csv”表格包含了叶片背面的方向性半球反射率因子。

“description.csv”表格包含了每片采样叶片的元数据。

“sample_photos.pdf”文件包含了采样叶片、枝条、灌木及其周围环境的照片。

有关数据收集、测量过程和数据文件内容的详细信息，请参阅README.pdf。

如使用本数据集，请引用Mendeley数据集：Mercier, Audrey; Karlqvist, Susanna; Hovi, Aarne; Rautiainen, Miina（2023），《桦刺榛、普通榛和欧洲飞金银花的叶片光谱》，Mendeley数据，V1，doi: 10.17632/3bkrwhk4p3.1。

资助：欧洲联盟——下一代欧盟，作为芬兰研究委员会ARTISDIG项目（决定编号348152）的一部分。

我们感谢Daniel Richterich、Ellinoora Leivo和Tuomas Peurala在维基基植物园中定位灌木物种时提供的支持。