Chemistry of Bulk Precipitation at Hubbard Brook Experimental Forest, Watershed 4, 1963 - present

Precipitation chemistry has been measured at the Hubbard Brook Experimental Forest since 1963. This data set includes volume-weighted, average, monthly concentrations of cations, anions, and pH for watershed 4. Monthly averages are calculated from samples collected at weekly intervals from several bulk precipitation stations located in the experimental watersheds. These data were gathered as part of the Hubbard Brook Ecosystem Study (HBES). The HBES is a collaborative effort at the Hubbard Brook Experimental Forest, which is operated and maintained by the USDA Forest Service, Northern Research Station.自1963年起，研究团队便在哈伯德布鲁克实验林（Hubbard Brook Experimental Forest）持续开展降水化学组分监测工作。本数据集涵盖第4号流域（watershed 4）的阳离子、阴离子浓度与pH值的体积加权平均月浓度数据。月均数值由实验流域内多个总降水采样站（bulk precipitation stations）采集的周度样品计算得到。上述数据作为哈伯德布鲁克生态系统研究（Hubbard Brook Ecosystem Study, HBES）的组成部分采集获取。该研究是依托哈伯德布鲁克实验林开展的合作项目，由美国农业部林务局北方研究站（USDA Forest Service, Northern Research Station）负责运营与维护。