Quantitative Pit Soil Carbon and Nitrogen on Watershed 5 at the Hubbard Brook Expermental Forest, 1983-1998

We sampled soils prior to the whole-tree harvest of watershed 5 at Hubbard Brook Experimental Forest in 1983, and again in 1986, 1991, and 1998, using the quantitative soil pit method. Here we report soil mass, C and N concentrations, and loss-on-ignition for each horizon in each of the 239 soil pits excavated over the four sampling years. 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1983年在哈伯德布鲁克实验林（Hubbard Brook Experimental Forest）5号集水区的全树采伐作业前采集土壤样本，并分别于1986、1991及1998年采用定量土坑法（quantitative soil pit method）开展重复采样。本文公开了四个采样年度内共239个开挖土坑各土壤发生层的土壤质量、碳（C）、氮（N）浓度及烧失量数据。本数据集隶属于哈伯德布鲁克生态系统研究（Hubbard Brook Ecosystem Study, HBES）项目，该项目由美国农业部林务局（USDA Forest Service）北方研究站（Northern Research Station）运营维护的哈伯德布鲁克实验林牵头开展协作研究。