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Measured Annual Nutrient loads from AGricultural Environments (MANAGE) database

The MANAGE (Measured Annual Nutrient loads from AGricultural Environments) database was developed to be a readily-accessible, easily-queried database of site characteristic and field-scale nutrient export data (Harmel et al., 2006). Initial funding for MANAGE was provided by USDA-ARS to support the USDA Conservation Effects Assessment Project (CEAP) and the Texas State Soil and Water Conservation Board as part of their mission to understand and mitigate agricultural impacts on water quality.

The original version of MANAGE, which drew heavily from an early 1980’s compilation of nutrient export data (Reckhow et al., 1980; Beaulac, 1980; Beaulac and Reckhow, 1982), created an electronic database with nutrient load data and corresponding site characteristics from 40 studies on agricultural (cultivated and pasture/range) land uses. The first revision in 2008 added N and P load data from 15 additional studies along with N and P runoff concentration data for all 55 studies (Harmel et al., 2008). Another revision in 2016 added 30 runoff studies from forested land uses, 91 drainage water quality studies from drained land, and 12 additional runoff studies from cultivated and pasture/range (Christianson and Harmel, 2015; Harmel et al., 2016). In this expansion, fertilizer application timing, crop yield, and N and P uptake data were added to facilitate analysis of 4R Nutrient Stewardship.

With these updates, MANAGE contains data from a vast majority of published peer-reviewed N and P export studies on homogeneous cultivated, pasture/range, and forested land uses in the US under natural rainfall-runoff conditions, as well as artificially drained agricultural land. Thus MANAGE facilitates expanded spatial analyses and improved understanding of regional differences, management practice effectiveness, and impacts of land use conversions and management techniques, and it provides valuable data for modeling and decision-making related to agricultural runoff.

The Manage Database v5 04-04-2018 zip file resource superseded the previously available v4 and was added to this record on May 30, 2018.

Dataset Info

These fields are compatible with DCAT, an RDF vocabulary designed to facilitate interoperability between data catalogs published on the Web.
Harmel, Daren
Christianson, Laura
McBroom, Matt
Product Type
Agricultural Research Service
Contact Name
Vandenberg, Bruce
Contact Email
Public Access Level
Primary Article

Harmel, D., Christianson, L., McBroom, M., Smith, D., & Higgs, K. (2016). Expansion of the MANAGE Database with Forest and Drainage Studies. JAWRA Journal Of The American Water Resources Association, 52(5), 1275-1279.

Related Article

Christianson, L. E., Harmel, R. D., Smith, D. R., Williams, M. R., & King, K. W. (2016). Assessment and synthesis of 50 years of published drainage phosphorus losses. Journal of Environmental Quality 45:1467-1477.

Christianson, L. E., & Harmel, R. D. (2015). 4R water quality impacts: An assessment and synthesis of forty years of drainage nitrogen losses. Journal of Environmental Quality, 44:1852-1860.

AgID: 10113/61904

Christianson L. E., & R. D. Harmel, R. D. (2015). The MANAGE drain load database: Review and Compilation of More Than Fifty Years of North American Drainage Nutrient Studies. Agricultural Water Management 159:277-289.

AgID: 10113/61281

Harmel, R. D., Qian, S. S., Reckhow, K. H., & Casebolt, P. (2008). The MANAGE Database: Nutrient Load and Site Characteristic Updates and Runoff Concentration Data. Journal of Environmental Quality, 37(6):2403-2406.

AgID: 10113/23198

Harmel, R. D., Potter, S., Casebolt, P., Reckhow, K., Green, C. H., & Haney, R. L. (2006). Compilation of Measured Nutrient Load Data for Agricultural Land Uses in the United States. Journal of the American Water Resources Association, 42(5):1163-1178.

AgID: 10113/7408
Related Content
Funding Source(s)
Agricultural Research Service
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
Ag Data Commons Keywords: 
  • Agroecosystems & Environment
  • Agroecosystems & Environment
  • Water
  • Agroecosystems & Environment
  • Water
  • Water quality
  • Agroecosystems & Environment
  • Management
  • Agroecosystems & Environment
  • Soil
  • Agroecosystems & Environment
  • Soil
  • Nutrients
ISO Topic(s):