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Nitrogen Load (Instustrial Fertilizer) Print E-mail
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Fertilizer loads (kgN/km2/yr per 0.5 degree grid cell) representing the amount of nitrogen applied to the land surface through industrial fertilizer use.

Map description and dataset provided by: Water Systems Analysis Group, Complex System Research Center, Institute for the Study of Earth, Oceans and Space, University of New Hampshire, USA

DescriptionNitrogen Load (Instustrial Fertilizer)

Global, continental, regional, and coastline-specific estimates of fertilizer nitrogen loadings onto the continental land mass are derived by distributing country level industrial fertilizer use across mapped agricultural lands. Largest fertilizer loads can be seen in the Midwestern U.S., eastern China and throughout Europe.

Interpretation

This indicator provides a measure of potential water pollution due to local and upstream industrial fertilizer use by explicitly mapping out the extent of nitrogenous fertilizer loading to agricultural lands across the globe. The major agricultural areas of the globe including the ‘bread basket’ of the US and Canada, throughout continental Europe, and eastern China show the most widespread nitrogenous fertilizer application. Receiving water bodies and regions downstream of these agricultural areas are particularly susceptible to high nitrogen loading leading to potential water pollution with impacts ecosystem function.

Source

The dataset for this map was provided by: Charles J. Vörösmarty, Water Systems Analysis Group, Complex System Research Center, Institute for the Study of Earth, Oceans and Space, University of New Hampshire, USA

Background

This dataset was developed in support of analysis outlined in Green et al., 2004 and was initially spearheaded as a part of the International SCOPE Nitrogen Project, which received support from both the Mellon Foundation and from the National Center for Ecological Analysis and Synthesis (NCEAS) in Santa Barbara, California.

Citation

Please cite this map as: "GWSP Digital Water Atlas (2008). Map 57: Nitrogen Load (Instustrial Fertilizer) (V1.0). Available online at http://atlas.gwsp.org."

Contact Information

Charles J. Vörösmarty, Water Systems Analysis Group, Complex System Research Center, Institute for the Study of Earth, Oceans and Space, University of New Hampshire, Durham, NH USA 03824, This e-mail address is being protected from spam bots, you need JavaScript enabled to view it , Phone: +01.603.862.0850, Fax: +01.603.8

 
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