Data from: 'Effect of shipping induced changes in flow velocity on aquatic macrophytes in intensively navigated rivers'

In our paper 'Effect of shipping induced changes in flow velocity on aquatic macrophytes in intensively navigated rivers' (10.1016/j.aquabot.2019.103145), we used literature data of flow velocity tolerances of macrophytes to construct species sensitivity distributions (SSDs). With these SSDs and field measurements of flow velocities during ship passages at various types of littoral zones, potentially not occuring fractions (PNOFs) were calculated. Maximum flow velocity sensitivity ranged from 43 to 120 cm s-1. Field measured flow velocities fluctuated mostly between 0 and 10 cm sö1. However, maximum measured flow velocities during ship passages ranged between 45 and 74 cm. s-1. This resulted in a PNOF value of almost 0.50, indicating that 50% of the plant species is potentially absent due to ship generated changes in flow velocities. In this repository, we provide the literature based tolerance data of macrophytes, the maximum flow velocity during ship passages and flow velocity measurements at four different locations along the river Rhine on six days in 2017.This dataset includes the following four data files:1. 'Data from literature for SSD', which includes all the data collected from literature concerning flow velocity tolerances of macrophytes occurring in the river Rhine.2. 'Field data_max_flow_velocity_passing_ships' is a dataset including all the passing ships included in the study. Information about their name, direction, distance from flow velocity sensors and the maximum flow velocity are also included.3. 'Flow_velocity_all_locations' includes all the flow velocity measurements at each location.4. 'Overview of literature data flow velocity tolerances macrophytes' gives an overview of the literature data concerning flow velocity tolerances of the macrophytes included in this study.在我们发表于论文《密集通航河流中航运诱导流速变化对水生大型植物的影响》（DOI: 10.1016/j.aquabot.2019.103145）的研究中，我们利用水生大型植物（aquatic macrophytes）流速耐受度的公开文献数据，构建了物种敏感度分布（Species Sensitivity Distributions，SSDs）。依托上述物种敏感度分布，结合不同类型沿岸带（littoral zones）船舶通行期间的流速实地测量数据，我们计算得到了潜在未出现物种占比（Potentially Not Occurring Fractions，PNOFs）。本研究中，最大流速敏感度区间为43~120 cm·s⁻¹；实地测得的流速大多波动于0~10 cm·s⁻¹之间，但船舶通行期间实测的最大流速区间为45~74 cm·s⁻¹。据此计算得到的PNOF值接近0.50，表明有50%的植物物种可能因航运引发的流速变化而潜在消失。 本数据集仓库中，我们提供了基于文献的水生大型植物耐受度数据、船舶通行期间的最大流速数据，以及2017年6天内莱茵河4个不同点位的流速实地测量数据。本数据集包含以下4个数据文件： 1. 「Data from literature for SSD」：涵盖所有从公开文献中采集的、莱茵河原生水生大型植物的流速耐受度相关数据。 2. 「Field data_max_flow_velocity_passing_ships」：包含本研究涉及的所有过往船舶信息，具体包括船舶名称、航行方向、与流速传感器的间距以及实测最大流速等内容。 3. 「Flow_velocity_all_locations」：收录所有监测点位的全部流速实测数据。 4. 「Overview of literature data flow velocity tolerances macrophytes」：对本研究纳入的水生大型植物流速耐受度相关文献数据进行汇总梳理。