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CAMBIO CLIMATICO

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REPÚBLICA DOMINICANA 2003<br />

average, from 1 to 3° C higher than what the temperature<br />

normally is during this period.<br />

Regarding the Atlantic slope area, the average<br />

for the year 2010 (25.997 °C) is less than the<br />

base value (27.008 °C). This is inconsistent with<br />

the pattern of increase and is an example of the<br />

bias introduced by the correlation, which is narrowly<br />

interrelated with the values of the correlation<br />

coefficient between 0.70 and 0.84. There<br />

is also a high degree of correlation between the<br />

temperature of the air and the water in the<br />

Caribbean and Atlantic regions, both of which<br />

have similar seasonal variations, with natural<br />

differences being that the water remains at a<br />

higher temperature for a longer time from the<br />

height of the summer, due to the thermal inertia<br />

of the ocean.<br />

The adaptation measures in this sector are targeted<br />

to avoid and/or mitigate the changes needed to alleviate<br />

and evaluate in the shortest possible time the<br />

expected impacts on the Dominican coasts based on<br />

the vulnerability of the different sectors, and to<br />

develop strategies with adaptation measures that<br />

contribute not only to mitigating future impacts, but<br />

also to resolving the current impacts that reduce the<br />

vulnerability of the coastal environment.<br />

The recommendations for mitigating these<br />

impacts include measures such as the following:<br />

• Restore and rehabilitate the wetlands areas<br />

and coasts to allow the natural flooding of<br />

large land areas and to maintain water balances.<br />

• Eliminate the current pressures that reduce<br />

the capacity of the coastal ecosystems to<br />

respond to climate change, particularly all<br />

forms of domestic and industrial pollution.<br />

• Avoid the removal of plants and protect the<br />

biological diversity in order to maintain and<br />

increase the capacity for recovery and adaptation<br />

of the wetlands ecosystems so that they<br />

can continue to provide important services<br />

under varied climate conditions.<br />

• Maintaining the flow of rivers, including the<br />

period of low water, also represents an important<br />

approach in the maintenance of the wetlands<br />

systems, etc.<br />

1.4.3 Agricultural Sector<br />

The ongoing climate change represents a potential<br />

threat for agricultural production and the<br />

very existence of the forests in the tropical zone<br />

of the planet (UKMO, 1998; IPCC, 1996).<br />

The Potential Biomass Density (PBD) for<br />

Dominican forests could not be calculated<br />

because the necessary topographic and soil information<br />

was not available for this report. To evaluate<br />

climate impact on agricultural crops annually,<br />

the WOFOST 4.1 biophysical model was used.<br />

On the other hand, the impact parameters analyzed<br />

for irrigation crops were potential yield,<br />

such as water consumption, and the quantity of<br />

nutrients required to produce these yields. For<br />

irrigation crops, the model was run 30 times for<br />

each date of planting, in the base climate and in<br />

future climatic scenarios, with and without taking<br />

into account the possible CO 2 fertilization effect.<br />

This study included only the biophysical impacts<br />

of the first order of climate change concerning<br />

agriculture and forests in the Dominican<br />

Republic, and not those of a higher order<br />

(Rivero, 2001). This preliminary evaluation is,<br />

therefore, in a certain sense, analogous to the<br />

rapid evaluation conducted in Cuba (Rivero et al,<br />

1998), and should be expanded and completed<br />

in the future by Dominican specialists.<br />

1.4.3.a) Forests and Forest Formations<br />

The (potential) net primary productivity (NPP)<br />

of Dominican forests under current climate conditions<br />

denotes a very high productivity in the<br />

geographical zone coinciding with the highest<br />

amount of precipitation. However, there are<br />

areas of very low NPP located to the south of the<br />

Central Mountain Range. The NPP of the forest<br />

formations will experience momentous changes<br />

46

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