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Data Extent

AmeriFlux ecosystem observation datasets - University of Nebraska, Lincoln, Agricultural Research Service irrigated continuous maize site

The study site is one of three fields (all located within 1.6 km of each other) at the University of Nebraska Agricultural Research and Development Center near Mead, Nebraska. This site is irrigated with a center pivot system. Prior to the initiation of the study, the irrigated site had a 10-yr history of maize-soybean rotation under no-till. A tillage operation (disking) was done just prior to the 2001 planting to homogenize the top 0.1 m of soil, incorporate P and K fertilizers, as well as previously accumulated surface residues. Since the tillage operation, the site has been under no-till management until the harvest of 2005. Following harvest, a conservation-plow tillage operation was initiated where a small amount of N fertilizer is sprayed on the residue immediately prior to the plow operation. Approximately 1/3 of the crop residue is left on the surface. The post-harvest conservation-plow operation continues as the current practice.

Dataset Info

These fields are compatible with DCAT, an RDF vocabulary designed to facilitate interoperability between data catalogs published on the Web.
Suyker, Andy
Verma, Sashi
Schimelfenig, Todd
Product Type
Spatial / Geographical Coverage Area
POINT (-96.47 41.165)
Temporal Coverage
Equipment or Software Used
Intended Use
AmeriFlux Community Goals: Quantify the magnitude of the carbon sources and sinks for a range of terrestrial ecosystems in the Americas, and how they may be influenced by disturbance, management regimes, climate variability, nutrients, and atmospheric pollutants; Advance understanding of processes regulating carbon assimilation, respiration, and storage; Collect critical new information to help define the current global CO2 budget; Enable improved predictions of future concentrations of atmospheric CO2
Use Limitations
Information displayed has been gathered from global maps, regional network websites, and personal communication with investigators. If you have found an error, please send us an email by visiting http://fluxnet.ornl.gov/contact with a description of the error.
Contact Name
Suyker, Andy
Contact Email
Public Access Level
Funding Source(s)
Dataset DOI (digital object identifier)
Program Code
005:037 - Department of Agriculture - Research and Education
Bureau Code
005:18 - Agricultural Research Service
Modified Date
Release Date

Metadata Source

Harvested from Geodata Harvest
Harvest Source TitleGeodata Harvest
Harvest Source URIhttps://geodata:NAL2geodata@2017@geodata.nal.usda.gov/geonetwork/srv/eng/csw
Last Harvest PerformedTue, 04/10/2018 - 13:22
Ag Data Commons Keywords: 
  • Agroecosystems & Environment
  • Agroecosystems & Environment
  • Soil
State or Territory: 
Source ID: