Environmental variables measured in 85 lakes across Canada

The file "env_variables_FWBpaper.csv" contains environmental variables from subset of 85 sampled as part of the NSERC Canadian Lake Pulse Network project over three summers (2017-2018-2019). Lake morphometry variables were either measured on site (lake depth), or obtained from HydroLAKES v. 1.0 (Messager et al. 2016). Water quality variables (water physical and chemical properties) were collected or measured at the deepest point of each lake, following the protocols from the NSERC Canadian Lake Pulse Network (2021). Watershed land use fractions were characterized for each lake, as described by Huot et al. (2019). Variables sampling depth and units are described in Paquette et al (2023). References Huot, Y., C. A. Brown, G. Potvin, and others. 2019. The NSERC Canadian Lake Pulse Network: A national assessment of lake health providing science for water management in a changing climate. Sci. Total Environ. 695: 133668. doi:10.1016/j.scitotenv.2019.133668 Messager, M. L., B. Lehner, G. Grill, I. Nedeva, and O. Schmitt. 2016. Estimating the volume and age of water stored in global lakes using a geo-statistical approach. Nat. Commun. 7: 1–11. doi:10.1038/ncomms13603 NSERC Canadian Lake Pulse Network. 2021. NSERC Canadian Lake Pulse Network field manual 2017 - 2018 - 2019 surveys, M.-P. Varin, M.-L. Beaulieu, and Y. Huot [eds.]. Université de Sherbrooke. Paquette, C., Gregory-Eaves, I. et Beisner B.E. (2023) Congruence of water column, contemporary and pre-industrial sediment cladoceran assemblages in 85 Canadian lakes of contrasting human impact levels. Freshwater Biology, 00, 1-18.文件"env_variables_FWBpaper.csv"包含加拿大自然科学与工程研究理事会（Natural Sciences and Engineering Research Council of Canada, NSERC）加拿大湖泊脉动网络项目在2017、2018、2019三个夏季采集的85个采样湖泊的环境变量子集数据。 湖泊形态学变量一部分通过现场实测获取（如湖泊水深），其余数据来自HydroLAKES v1.0数据集（Messager等，2016）。 水质变量（水体物理与化学性质）严格遵循NSERC加拿大湖泊脉动网络（2021）发布的采样规范，在每个湖泊的最深点位完成采集与测定。 各湖泊的流域土地利用占比特征参考Huot等（2019）的研究方法完成表征。 各变量的采样深度与单位详情请参见Paquette等（2023）的研究成果。 参考文献 Huot Y., Brown C. A., Potvin G. 等. 2019. NSERC加拿大湖泊脉动网络：气候变化背景下支撑水资源管理的全国湖泊健康评估项目. 《总环境科学》(Science of the Total Environment), 695: 133668. doi:10.1016/j.scitotenv.2019.133668 Messager M. L., Lehner B., Grill G., Nedeva I., Schmitt O. 2016. 基于地质统计方法估算全球湖泊储水量与水体驻留时间. 《自然·通讯》(Nature Communications), 7: 1–11. doi:10.1038/ncomms13603 NSERC加拿大湖泊脉动网络. 2021. 《NSERC加拿大湖泊脉动网络2017-2018-2019野外调查手册》, M.-P. Varin、M.-L. Beaulieu与Y. Huot 主编. 舍布鲁克大学. Paquette C., Gregory-Eaves I., Beisner B.E. 2023. 人类干扰程度各异的85个加拿大湖泊中水柱群落、现代与前工业时代沉积物枝角类组合的一致性. 《淡水生物学》(Freshwater Biology), 00: 1-18.