Abstract
We present a new data set from the Marcell Experimental Forest (MEF) that compiles water isotope measurements from multiple research catchments, some of which have been studied since the 1960s. The MEF is located in northern Minnesota, USA, and is home to heavily studied and monitored forests, streams, bogs, and fens. Peat-forming systems (bogs and fens) are an important component of the MEF landscape and have a profound impact on the water cycle in these catchments. Within the last decade, analysis of stable isotopes of water (expressed as δD and δ18O) has been implemented to characterize the different components of the water budget, and to allow researchers to look at catchment and peatland-specific hydrologic effects in the watershed. This δD and δ18O data set of natural waters from MEF catchments is primarily composed of measurements from three peatlands (S1, S2, S6) during an 11-year period. More recently collection and analysis were expanded to also include samples from the Spruce and Peatland Responses Under Changing Environments (SPRUCE) project in the S1 bog, peatlands S3, S4, S5, as well as nearby lakes. We establish a local meteoric water line by analyzing the isotopic composition of precipitation, which fills a void in regional meteoric water lines for Minnesota. Furthermore, we establish baseline isotopic composition for bog outlet streams, bog porewater, aquifer groundwater, overland flow, subsurface stormflow, and snowpack, as well as runoff from the SPRUCE experimental chambers. These data are publicly available and will be expanded upon in the future.
| Original language | English |
|---|---|
| Article number | e14336 |
| Journal | Hydrological Processes |
| Volume | 35 |
| Issue number | 10 |
| DOIs | |
| State | Published - Oct 2021 |
Funding
This work was a collaborative effort receiving funding and support from multiple organizations: (1) The Northern Research Station of the USDA Forest Service funds the operation of the Marcell Experimental Forest, sample collection, the NRS Grand Rapids laboratory and the contributions of S.D. Sebestyen, K. Fitzgerald, and all other Forest Service employees. (2) Analysis at the University of Toronto was supported by the Natural Sciences and Engineering Research Council, Discovery Grants Program. (3) N. Griffiths was supported by the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research. Oak Ridge National Laboratory is managed by UT‐Battelle, LLC, for the U.S. Department of Energy under contract DE‐AC05‐00OR22725. (4) J.M. Stelling is supported by University of Minnesota via a cooperative agreement with the USDA Forest Service and he has analyzed all the samples at NRS Grand Rapids laboratory. The data are owned by the US Government and can be used without additional permissions or fees. Please do cite appropriately when publishing or presenting. This work was a collaborative effort receiving funding and support from multiple organizations: (1) The Northern Research Station of the USDA Forest Service funds the operation of the Marcell Experimental Forest, sample collection, the NRS Grand Rapids laboratory and the contributions of S.D. Sebestyen, K. Fitzgerald, and all other Forest Service employees. (2) Analysis at the University of Toronto was supported by the Natural Sciences and Engineering Research Council, Discovery Grants Program. (3) N. Griffiths was supported by the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research. Oak Ridge National Laboratory is managed by UT-Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05-00OR22725.
Keywords
- bog
- fen
- local meteoric water line (LMWL)
- peatland
- research catchment
- stream
- water isotopes
- δD
- δO