Nutrients/Policy issues: Difference between revisions

Revision as of 15:46, 13 January 2014

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Flowchart Nutrients. See also the Input/Output Table on the introduction page.

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 {{ComponentPolicyIssueTemplate
-|Description=Under the baseline scenario of the [[Roads from Rio+20 (2012)|Rio+20 study]], N surpluses increase by 35% globally, which is the result of decreasing trends in North America, western Europe and Japan, and stabilisation in India; in all other regions, N surpluses increase (See figure below). This increase is particularly large in sub-Saharan Africa and Southeast Asia. For phosphorus we see a similar picture, with large increases in developing countries.
+|Description=Under the baseline scenario of the [[Roads from Rio+20 (2012) project|Rio+20 study]], N surpluses increase by 35% globally, which is the result of decreasing trends in North America, western Europe and Japan, and stabilisation in India; in all other regions, N surpluses increase (See figure below). This increase is particularly large in sub-Saharan Africa and Southeast Asia. For phosphorus we see a similar picture, with large increases in developing countries.
 Several different economic developments and policy interventions may modify individual terms in the soil nutrient budget ([[Equation 1]]), and the fate of nutrients in the environment. For example, agricultural demand affects:
 *	the production of leguminous crops (pulses and soybeans) and biological N fixation as a consequence;