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ARS Home » Midwest Area » Morris, Minnesota » Soil Management Research » Research » Publications at this Location » Publication #418980
Research Project: Integrating Science and Stewardship to Advance Sustainable Management Practices for the Upper Midwest

Location: Soil Management Research

Title: AmeriFlux dataset for US-MN3

Author
item Helseth, Christina - Tina
item Johnson, Jane

Submitted to: AmeriFlux
Publication Type: Database / Dataset
Publication Acceptance Date: 7/19/2024
Publication Date: N/A
Citation: N/A

Interpretive Summary: Scientists working with local farmers measure carbon dioxide, water, and energy exchange by a process called eddy covariance. The goal is to understand how farming practices alter carbon dioxide emissions, water, and energy exchange. Data were collected continuously between 2020-2023, from a field managed with deep ripping tillage in a two-year corn /soybean rotation. The field is a part of the Northern Headwaters (NH) Long-Term Agroecosystem Research (LTAR), Croplands Common experiment, Prevailing field. The dataset is labeled US-MN3 within the Ameriflux repository. The data are important to other LTAR researchers as well as climate and ecosystem modelers. The information collected is also useful to producers interested in potential benefits of prevailing and alternative practices to meet many demands on American producers.

Technical Abstract: The Northern Headwaters (NH) Long-Term Agroecosystem Research (LTAR) site near Morris, MN has three eddy covariance towers operating on three farm fields to observe crop rotation and tillage effects on carbon dioxide emissions, water, and energy exchange. Unique long-term datasets from each are submitted to the Ameriflux repository for ecosystem carbon dioxide (CO2), water, and energy flux data. At the NH-Morris fields, the prevailing (PREV) is managed with deep ripping tillage to 30 cm in a two-year corn (Zea mays L.)/soybean (Glycine max L.) rotation. The eddy covariance and supporting data from April 2020 through December 2023 were uploaded as US-MN3 into the Ameriflux repository. As of 2024, the LTAR network consists of 19 sites focused on finding solutions that maintain or increase agricultural productivity, environmental quality, and people well-being despite pressure such as climate change. Scientists in the LTAR network are responsible for managing a rich legacy of data. AmeriFlux is a network of individually managed sites that measure ecosystem carbon dioxide, water, and energy fluxes. Several LTAR sites contribute greenhouse gas flux data to AmeriFlux, including the Northern Headwaters LTAR site.