Lysimeter chemistry from the Ice Storm Experiment (ISE) at the Hubbard Brook Experimental Forest

An ice storm simulation was performed at the Hubbard Brook Experimental Forest to evaluate impacts of these extreme weather events on northern hardwood forests. Water was pumped from the main branch of Hubbard Brook and sprayed above the forest canopy in subfreezing conditions so that it rained down and froze on contact with trees. The experiment included five ice storm intensities (0, 6.4, 12.7 and 19.1 mm radial ice accretion) applied in a single year, and one ice storm intensity (12.7 mm) applied in two consecutive years. Samples of soil solution chemistry were collected with lysimeters throughout the year before and after the ice was applied. 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.

本研究于哈伯布鲁克实验林（Hubbard Brook Experimental Forest）开展冰暴模拟实验，旨在评估这类极端天气事件对北部硬木林的影响。研究人员从哈伯布鲁克主干河道取水，在亚冰冻环境下向林冠上方喷洒，使水体以降雨形式降落并在接触树木时发生冻结。本次实验设置了5种冰暴强度（径向积冰量分别为0、6.4、12.7与19.1 mm），均在单一年度内施加；另有1种强度（12.7 mm）的冰暴连续两年施加。在施加冰体前后的完整年度周期内，研究人员通过测渗仪（lysimeters）采集土壤溶液化学样品。本数据集作为哈伯布鲁克生态系统研究（Hubbard Brook Ecosystem Study, HBES）的组成部分完成采集。哈伯布鲁克生态系统研究是由美国农业部林务局（USDA Forest Service）北方研究站（Northern Research Station）运营维护的哈伯布鲁克实验林牵头实施的合作项目。