RTG 2300 - Tree census data - winter 2017/2018

This dataset contains information from a tree census on the plots of the interdisciplinary research training group 'RTG2300: Enrichment of European beech forests with conifers'. The tree cesus was carried out during winter 2017/2018 using a Field-Map system (software Version 5x; IFER - Monitoring and Mapping Solutions, Ltd.; Prague; Czech Republic). All living and dead trees with a diameter greater or equal than 7.0 cm were recorded in the 0.25 ha plots (https://doi.pangaea.de/10.1594/PANGAEA.923125) and in a ten meter buffer zone surrounding the plot border. Tree coordinates relative to the plot center were recorded with a laser range finder with an integrated electronic compass (TruPulse Laser 360 R, Laser Technology Inc, Centennial, USA). Tree diameters were measured with a diameter tape preferentially at 1.3 m height. If a diameter measurement at 1.3 m was not possible, the alternative height of the diameter measurement was recorded. Tree species, tree vitality (dead or alive) and tree condition ('normal', 'snag', 'hung_up', 'sloping', 'thrown', 'stump') of each tree and heights of snags were recorded.本数据集包含跨学科研究培训组“RTG2300：欧洲山毛榉林针叶树富集”样地的林木普查相关信息。本次林木普查于2017/2018年冬季实施，采用Field-Map系统（Field-Map system，软件版本5x；IFER监测与绘图解决方案有限公司，捷克共和国布拉格）完成。本数据集对0.25公顷样地（https://doi.pangaea.de/10.1594/PANGAEA.923125）及其边界周边10米缓冲带内，直径大于等于7.0厘米的所有活立木与枯立木进行了记录。采用集成电子罗盘的激光测距仪（laser range finder with an integrated electronic compass，TruPulse Laser 360 R，美国森特尼尔市激光技术有限公司（Laser Technology Inc））记录了相对于样地中心的林木坐标。林木直径优先采用直径卷尺在1.3米高度处测量；若无法在1.3米高度处完成直径测量，则记录替代测量高度。本数据集记录了每株林木的树种、林木活力（活立木或枯立木）以及林木状态（正常（normal）、枯立木（snag）、挂枯木（hung_up）、倾斜木（sloping）、倒伏木（thrown）、树桩（stump）），同时记录了枯立木的高度。