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Tag: Nitrogen

Fertilizer use and nitrogen release in the Mediterranean region
Agriculture is the largest non-point source of pollutants in the Mediterranean (UNEP/MAP 2011). Agriculture-related nutrients enter the sea through groundwater, lakes, wetlands, and rivers. Nitrogen consumption per su...
19 Nov 2013 - by GRID-Arendal
Discharge of selected pollutants
Data referring to the Biological Oxygen Demand load (BOD), total suspended solids (TSS), total nitrogen and total phosphorus levels were available for all five of the Caspian countries through the Baseline Inventory Re...
17 Oct 2013 - by GRID-Arendal
Dissolved Inorganic Nitrogen export by rivers for world regions
The figure shows the amounts of nitrogen exported by rivers per year and provides a forecast for the future.
16 Oct 2013 - by GRID-Arendal
Nitrogen sources to watershed exports to the oceans
Over the last 20 years, significant data and experience in understanding and addressing the sectoral drivers, pressures, sources, impacts and response to reactive nitrogen have been gathered and progress made in trying t...
16 Oct 2013 - by GRID-Arendal
Unbalancing the cycle
The figure compares the flow of nitrogen between the the years 1890 and 1990.
16 Oct 2013 - by GRID-Arendal
Dead zones and fertilizers
The production and use of reactive nitrogen based artificial fertilizers has had huge global benefits providing food for billions through the green revolution. The down side of the increased availability of cheap manufac...
16 Oct 2013 - by GRID-Arendal
Production of nitrogen
The rapid increase in the production of reactive nitrogen via the Haber-Bosch process correlates closely with the increase in world population from about 2.6 billion in 1950 to over 6 billion in 2000 (figure page 78). B...
16 Oct 2013 - by GRID-Arendal
Contrast between contemporary and pre-disturbance transports of total nitrogen through inland aquatic systems resulting from anthropogenic acceleration of this nutrient cycle
While the peculiarities of individual pollutants, rivers, and governance define the specific character of water pollution, the general patterns observed for nitrogen are representative of anthropogenic changes to the tra...
30 Nov 2007 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
Nitrogen runo
Fertiliser and pesticides used to cultivate feedstocks, as well as contaminated effuents discharged from conversion plants, can cause increasing levels of pollution to waterways. This may constrain the growth of biofue...
01 Mar 2012 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Global trends in cereal and meat production; total use of nitrogen and phosphorus fertilizers; increased use of irrigation; total global pesticides production
Production gains are attributed to improved crop varieties and livestock, soil management, improved access to resources (nutrients and water), infrastructure developments, policy initiatives, microfinance, education, bet...
03 Jan 2008 - by IAASTD/Ketill Berger, UNEP/GRID-Arendal
Consumption of Nitrogen fertilizers in EU 15
The graph shows Consumption of Nitrogen fertilizers in EU 15 from 1970 to 1992. The main source of nitrogen in soils is from organic matter. Nitrogen also comes from sources such as factories. A common concern with these...
14 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Yearly applied nitrogen fertilizers
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000). The graphic shows a decline in yearly applied nitrogen ferti...
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Industrial NO2 emissions
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000). The graphic shows industrial NO2 emissions from combustion in...
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Transport NO2 emissions
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000). This graphic shows transport NO2 emissions in Baltic countrie...
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Trends in Nitrogen loads and concentrations, Baltic Sea, 1900-2030
The graphic show trends in Nitrogen loads and concentrations in the Baltic Sea from 1900 to 1995 with projections to 2030. The main source of nitrogen in soils is from organic matter. Nitrogen also comes from sources suc...
13 Feb 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Fertilizer consumption in the Nordic countries, 1980-1996
The graph shows the consumption of fertilizers in the Nordic countries form 1980 to 1996 with projections to 2006. The fertilizers included are phosphate, Potash and Nitrogen which are the three most important nutrients ...
13 Feb 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Environmental trends Nordic countries ( II )
The graph shows environmental trends in Nordic countries (II). The graph demonstrates negative and positive environmental developments in areas such as marine water and discharges of Nitrogen, fresh water resources, and ...
13 Feb 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Population density in the Baltic Sea drainage basin
The density of people per square kilometers have been calculated from various statistical sources, and displays the situation at approximately 1990. Population, and specifically cities, act as driving forces in regards t...
04 Oct 2005 - by Hugo Ahlenius, UNEP/GRID-Arendal
Arable land in the Baltic Sea region
Ratio of arable land out of total land use in the Baltic Sea drainage basin. Agriculture is one of the main contributors to the nutrient (in this case, primarily nitrogen) influx into the Baltic Sea, and thus a main driv...
04 Oct 2005 - by Hugo Ahlenius, UNEP/GRID-Arendal
Pasture Land - Baltic Sea drainage basin
Ratio of pasture land total land use in the Baltic Sea drainage basin. Agriculture is one of the main contributors to the nutrient (in this case, primarily nitrogen) influx into the Baltic Sea, and thus a main driver for...
04 Oct 2005 - by Hugo Ahlenius, UNEP/GRID-Arendal
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