Ecosystem services/Policy issues: Difference between revisions

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|Description=Figure 7.5.3 shows the fraction of people resp. agricultural land receiving sufficient ES, A decreasing trend for most ES budgets is expected, except for food. According to the scenario sufficient food will be produced at regional level, An unequal distribution of food will still lead to malnutrition or hunger. The ESs “pest control”, “pollination” and “erosion protection” is not delivered sufficiently everywhere and the area is likely to decrease. Availability of water per person and the amount of carbon sequestrated relative to the amount emitted also decreases.  
|Description=Around the world, the number of services (out of the seven services food, water, Carbon sequestration, erosion protection, pollination, pest control, flood protection, tourism) sufficiently supplied differs strongly (Figure below)
|Example=Figure 7.5.3 illustrate, as an example, the effect of one of the RIO+20 scenarios (global technology scenario, “GT”) on the sufficient delivery of ES. Figure 7.5.3 illustrates that the “GT” scenario positively influence the delivery of most ES. The percentage of sufficient delivery of most ES are increased compared to both the baseline in 2000 and in 2050. The “GT” scenario strongly focusses on limiting climate change, which is also illustrated in the sufficient delivery of the ES “carbon sequestration”. The sharp decline of the ES “water” in the baseline 2050 is prevented in the “GT” scenario, due to meeting the millennium development goals. However there is little change in the sufficient delivery of , “pollination” and “pest control”.  
 
In a baseline, the proportion of people living in regions with sufficient supply of an ecosystem service is decreasing for most services in the future, except for food (Figure Policy interventions below). According to the scenario, sufficient food will be produced regionally, but unequal food distribution will still lead to malnutrition and hunger. Areas with sufficient supplies of ‘pest control, ’pollination’ and ’erosion protection’ are likely to decrease. Availability of water per person and the amount of carbon sequestrated relative to the amount emitted also decreases.  
 
|Example=As an example, the positive effect of one RIO+20 scenario (global technology scenario) on the sufficient delivery of most ecosystem services is presented in Figure below. The percentage of sufficient delivery increases compared to the baseline in 2050. The sustainability scenario focuses on limiting climate change, which is also illustrated by sufficient delivery of carbon sequestration. The sharp decline in water in the baseline 2050 is prevented in the global technology scenario.  
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Revision as of 08:05, 20 May 2014

Ecosystem Services model in IMAGE 3.0
Flowchart Ecosystem services. See also the Input/Output Table on the introduction page.