DEPRECATED:Exchangeable Cations and Acidity, Carbon, Nitrogen, and pH of Soils in Watershed 1 at the Hubbard Brook Experimental Forest, 1996 - present

This data package has been DEPRECATED. The full timeline of these data now exist in: Johnson, C.E. 2022. Mass and Chemistry of Organic Horizons and Surface Mineral Soils on Watershed 1 at the Hubbard Brook Experimental Forest 1996-present ver 3. Environmental Data Initiative. https://doi.org/10.6073/pasta/7395cf86c134440f38d800ca59a4857b Calcium in the form of wollastonite (CaSiO3) was added to Watershed 1 in October 1999. The application rate was 1028 kg Ca per ha, and the application was relatively uniform across the watershed. More information about the study can be found at http://www.hubbardbrook.org/research/longterm/calcium/w1_overview/index.html. Pre-treatment forest floor surveys were completed in 1996 and 1998. The post-treatment forest floor surveys were completed in 2000, 2002, 2006, and 2010. Sampling is intended to continue at 4 or 5 year intervals. This data set includes soil pH in water and 0.01 M CaCl2, exchangeable cations, and total carbon and nitrogen for the combined Oi and Oe horizons, the Oa horizon, and the top cm of the mineral soil. 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.