Reflectance spectra of nine boreal Sphagnum moss species

Collection of the Sphagnum moss samples and measurements of their reflectance spectra and moisture are described in detail in Salko, S.-S., Juola, J., Burdun, I., Vasander, H., Rautiainen, M. (2023). Intra- and interspecific variation in spectral properties of dominant Sphagnum moss species in boreal peatlands. Ecology and Evolution. DOI: 10.1002/ece3.10197. The dataset consists of biconical reflectance factors of nine Sphagnum moss species collected from southern Finland, as well as the moisture percent of the samples at the time of the measurement. The samples were collected in May 2022, and the nadir-view reflectance factors were measured in a dark laboratory using an ASD FieldSpec 4 spectrometer. The spectral range of measurements was 350-2500nm. During the measurement, the sample was illuminated with a 12V 50W Quartz Tungsten Halogen lamp, with an illumination angle of 40º. The spectra of nine species are reported with 10 samples for each species. The size of each sample was 21.7 * 21.5cm, and they were measured four times: as fresh (0h), after one day (24h), two days (48h) and one week (1w) of the sample collection. Between the spectral measurements, the samples were stored in open containers in a semi-dark room with no direct sunlight and standard temperature (average 20.5ºC) and air humidity (average 29%). Example photographs of the fresh sampled species and details of determining the moisture percent can be found from the file Data_description_V3.pdf. The spectra are reported in two versions: as raw data (_raw) and as smoothed with Savitzky-Golay filter with 25nm window (_smoothed). The first three rows in the data contain information for citing and reading the data, after which the sample information, moisture percent and the reflectance spectra are provided. The encoding of the csv file is UTF-8. The most recent version of the dataset (V3) includes moisture data together with the reflectance spectra, unlike the earlier versions (V1, V2), which contain only the reflectance spectra. List of the measured species: Sphagnum angustifolium Sphagnum capillifolium Sphagnum centrale Sphagnum cuspidatum Sphagnum fallax Sphagnum fuscum Sphagnum girgensohnii Sphagnum riparium Sphagnum rubellum If you use this dataset, please cite: 1) Salko, S.-S., Juola, J., Burdun, I., Vasander, H., Rautiainen, M. (2023). Intra- and interspecific variation in spectral properties of dominant Sphagnum moss species in boreal peatlands. Ecology and Evolution, DOI: 10.1002/ece3.10197 2) Salko, S.-S., Juola, J., Burdun, I., Vasander, H., Hovi, A., Rautiainen, M. (2023). Reflectance spectra of nine boreal Sphagnum moss species. Mendeley Data, V3, DOI: 10.17632/wm5fcxdmzd.3本泥炭藓（Sphagnum）样本集及其反射光谱与含水率的测量细节，已在Salko, S.-S.、Juola, J.、Burdun, I.、Vasander, H.、Rautiainen, M. 于2023年发表于《Ecology and Evolution》的论文中详细阐述：《北方泥炭地优势泥炭藓物种光谱特性的种内与种间变异》，DOI: 10.1002/ece3.10197。 本数据集包含采自芬兰南部的9种泥炭藓的双锥反射因子，以及样本测量时的含水率。样本采集于2022年5月，天底视角反射因子在暗室中使用ASD FieldSpec 4光谱仪进行测量。测量的光谱范围为350~2500nm。测量过程中，样本由12V 50W石英卤钨灯照明，照明角度为40°。9个物种各提供10份样本的光谱数据。每份样本的尺寸为21.7×21.5cm，共进行4次测量：样本采集时的新鲜状态（0h）、采集后1天（24h）、2天（48h）以及1周（1w）。光谱测量间隙，样本被放置于敞口容器中，保存于无直射阳光的半暗室内，环境为标准温湿度（平均温度20.5℃，平均空气湿度29%）。新鲜样本物种的示例照片以及含水率测定细节可在Data_description_V3.pdf文件中查阅。 光谱数据提供两种版本：原始数据（后缀_raw）以及采用25nm窗口的萨维茨基-戈莱（Savitzky-Golay）滤波器平滑后的数据（后缀_smoothed）。数据文件的前三行包含数据引用与读取说明，后续行依次提供样本信息、含水率以及反射光谱。CSV文件的编码格式为UTF-8。 本数据集最新版本（V3）包含反射光谱与含水率数据，而早期版本（V1、V2）仅包含反射光谱数据。 被测物种列表： 1. 狭叶泥炭藓（Sphagnum angustifolium） 2. 柔叶泥炭藓（Sphagnum capillifolium） 3. 中央泥炭藓（Sphagnum centrale） 4. 尖叶泥炭藓（Sphagnum cuspidatum） 5. 柔枝泥炭藓（Sphagnum fallax） 6. 褐泥炭藓（Sphagnum fuscum） 7. 吉氏泥炭藓（Sphagnum girgensohnii） 8. 河岸泥炭藓（Sphagnum riparium） 9. 红泥炭藓（Sphagnum rubellum） 若使用本数据集，请引用以下两篇文献： 1) Salko, S.-S., Juola, J., Burdun, I., Vasander, H., Rautiainen, M. (2023). 北方泥炭地优势泥炭藓物种光谱特性的种内与种间变异. 《生态学与进化》, DOI: 10.1002/ece3.10197 2) Salko, S.-S., Juola, J., Burdun, I., Vasander, H., Hovi, A., Rautiainen, M. (2023). 9种北方泥炭藓的反射光谱. Mendeley Data, V3, DOI: 10.17632/wm5fcxdmzd.3