%0 Journal Article
%T A Review of Greenhouse Gas Emissions by Hydropower Reservoirs
%A Marco Aur¨Ślio Dos Santos
%J Journal of Geoscience and Environment Protection
%P 203-215
%@ 2327-4344
%D 2023
%I Scientific Research Publishing
%R 10.4236/gep.2023.119013
%X Hydroelectric reservoirs have environmental impacts as many other sources <span>of energy. Regarding hydropower, these
effects include flooding cultivated</span> and forest areas, changes in water
quality, negative impacts on water biodiversity, conflict with indigenous
people and fish migration. In </span></span><span><span><span style=\"font-family:&quot;\">the </span></span></span><span><span><span style=\"font-family:&quot;\">nineties, research<span>ers put in evidence </span></span></span></span><span><span><span style=\"font-family:&quot;\">of </span></span></span><span><span><span style=\"font-family:&quot;\">another important impact of dam construction: the</span></span></span><span><span><span style=\"font-family:&quot;\"> green<span>house gases generated by
flooding organic matter by reservoir flooding</span>. Scientists argue that
like natural human water bodies</span></span></span><span><span><span style=\"font-family:&quot;\">,</span></span></span><span><span><span style=\"font-family:&quot;\"> the
hydropower reservoirs emit biogenic gases </span></span></span><span><span><span style=\"font-family:&quot;\">in</span></span></span><span><span><span style=\"font-family:&quot;\">to the
atmosphere. The diffusive gas flux is asso<span>ciated
with </span></span></span></span><span><span><span style=\"font-family:&quot;\">the</span></span></span><span><span><span style=\"font-family:&quot;\"> difference between gas partial pressure of each
chemical</span></span></span><span><span><span style=\"font-family:&quot;\"> sub</span></span></span><span><span><span style=\"font-family:&quot;\">stance considering the aquatic system and the
atmosphere. Ebullition is a</span></span></span><span><span><span style=\"font-family:&quot;\"> process <span>where
some chemical substances are not soluble in water and bubbles are</span> formed
in the sediment at the bottom of </span></span></span><span><span><span style=\"font-family:&quot;\">the</span></span></span><span><span><span style=\"font-family:&quot;\"> reservoir.
Ebullition is often the dominant pathway of CH<sub>4</sub> </span></span></span><span><span><span style=\"font-family:&quot;\">that is </span></span></span><span><span><span style=\"font-family:&quot;\">release</span></span></span><span><span><span style=\"font-family:&quot;\">d</span></span></span><span><span><span style=\"font-family:&quot;\"> from aquatic ecosystems. The phenomenon <span>is episodic and irregular and depends mainly on hydrostatic pressure and
other physical influences</span></span></span></span><span><span><span
%K Hydropower Reservoirs
%K Carbon Emission
%K Methane
%K Carbon Dioxide
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=127867