Ecosystem services/Description: Difference between revisions

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m (Text replace - "CO2 " to "CO<sub>2</sub>")
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===Regulating services===
===Regulating services===
====Carbon sequestration====
====Carbon sequestration====
CO<sub>2</sub>emissions are a key driver of climate change. By halting the increase of CO<sub>2</sub>concentration in the atmosphere, the consequences of global warming could be limited in the longer term. Natural vegetation and oceans can sequester CO<sub>2</sub>from the atmosphere and thus influence CO<sub>2</sub>concentration.  
CO<sub>2</sub> emissions are a key driver of climate change. By halting the increase of CO<sub>2</sub> concentration in the atmosphere, the consequences of global warming could be limited in the longer term. Natural vegetation and oceans can sequester CO<sub>2</sub> from the atmosphere and thus influence CO<sub>2</sub> concentration.  


The amount of CO<sub>2</sub>sequestered by vegetation and oceans is considered an ecosystem service. A proxy for CO<sub>2</sub>sequestration by vegetation is net ecosystem production (NEP), which is the difference between net primary productivity (NPP) and plant and soil respiration. NEP values and ocean sequestration are adopted from IMAGE (Section [[Carbon cycle and natural vegetation]] and [[Atmospheric composition and climate]]). The supply values are averaged over ten years to account for year to year model fluctuation ([[Crossman et al., 2013]]).
The amount of CO<sub>2</sub> sequestered by vegetation and oceans is considered an ecosystem service. A proxy for CO<sub>2</sub> sequestration by vegetation is net ecosystem production (NEP), which is the difference between net primary productivity (NPP) and plant and soil respiration. NEP values and ocean sequestration are adopted from IMAGE (Section [[Carbon cycle and natural vegetation]] and [[Atmospheric composition and climate]]). The supply values are averaged over ten years to account for year to year model fluctuation ([[Crossman et al., 2013]]).


Total CO<sub>2</sub>emissions from all sources would need to be sequestered to prevent increase in CO<sub>2</sub>concentration. Thus, the service requirement is the total CO<sub>2</sub>emissions from industry, energy and land use change (agriculture, deforestation and fires) from IMAGE, also averaged over ten years. The budget is established by subtracting emissions from CO<sub>2</sub>sequestered.
Total CO<sub>2</sub> emissions from all sources would need to be sequestered to prevent increase in CO<sub>2</sub> concentration. Thus, the service requirement is the total CO<sub>2</sub> emissions from industry, energy and land use change (agriculture, deforestation and fires) from IMAGE, also averaged over ten years. The budget is established by subtracting emissions from CO<sub>2</sub> sequestered.


====Erosion risk reduction====
====Erosion risk reduction====

Revision as of 10:30, 1 July 2014