Nutrients/Policy issues: Difference between revisions
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|Description=Under the baseline scenario of the [[Roads from Rio+20 (2012) project|Rio+20 study]], N surpluses increase by 35% globally. This is the result of decreasing trends in North America, western Europe and Japan, and stabilisation in India. In all other regions, N surpluses increase, particularly in Sub-Saharan Africa and Southeast Asia (see figure below). The situation is similar for phosphorus, 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. This is the result of decreasing trends in North America, western Europe and Japan, and stabilisation in India. In all other regions, N surpluses increase, particularly in Sub-Saharan Africa and Southeast Asia (see figure below). The situation is similar for phosphorus, with large increases in developing countries. | ||
Economic developments and policy interventions may modify individual terms in the soil nutrient budget (see the [[Nutrient_balances|Introduction]], formula 1.), and the fate of nutrients in the environment. For example, agricultural demand ([[Agricultural economy | Economic developments and policy interventions may modify individual terms in the soil nutrient budget (see the [[Nutrient_balances|Introduction]], formula 1.), and the fate of nutrients in the environment. For example, agricultural demand ([[Agricultural economy]]) affects: | ||
# production of leguminous crops (pulses and soybeans) and biological N fixation as a consequence; | # production of leguminous crops (pulses and soybeans) and biological N fixation as a consequence; | ||
# meat and milk production and thus animal manure production; | # meat and milk production and thus animal manure production; |
Revision as of 18:28, 16 May 2014
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