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Tag: Phosphorus

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
Development of organic matter, phosphorus and nitrate in EU 15 rivers
The graphic shows the development of organic matter, phosphorus and nitrate in EU 15 rivers. Water resources in Europe have been profoundly influenced over the past century by human activities, including the construction...
14 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Yearly applied phosphorus by mineral 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 Phosphorus by m...
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Trends in Phosphorus loads and concentrations, Baltic Sea, 1900-2030
The graphic shows trends in Phosphorus loads and concentrations in the Baltic Sea from 1900 to 1995 with projections to 2030. Phosphorus is an agricultural fertilizer. Phosphorus is produced in nature, but never in its p...
13 Feb 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Dissolved phosphate levels: concentrations at river mouths
Phosphorus is naturally present in water, primarily as inorganic and organic phosphates. Phosphates can enter aquatic environments in several ways: from the natural weathering of minerals in the drainage basin, from biol...
26 Jan 2009 - by Phillippe Rekacewicz, February 2006
Nitrate levels: concentrations at river mouths
Nutrients are essential to life. In aquatic systems, nitrogen and phosphorus are the two nutrients that most commonly control the growth of aquatic plants, algae and bacteria. Nitrogen and phosphorus are considered to be...
26 Jan 2009 - by Philippe Rekacewicz