Methane (CH4) is the primary greenhouse gas emitted from dams and irrigation projects due to the decomposition of organic matter in flooded areas and rice paddies.

Dams and irrigation projects contribute to methane (CH4) emissions through the decomposition of organic matter in flooded reservoirs, the fermentation of organic matter in rice paddies, and the release of methane from underground sources.

The amount of methane (CH4) emitted from dams and irrigation projects is influenced by the temperature of the water, the amount of organic matter in the flooded area, and the depth of the reservoir.

Denitrification in flooded soils is the primary source of nitrous oxide (N2O) emissions associated with dams and irrigation projects.

Dams and irrigation projects contribute to nitrous oxide (N2O) emissions through the conversion of forests to agricultural land, the application of nitrogen-based fertilizers, and the flooding of wetlands.

The amount of nitrous oxide (N2O) emitted from dams and irrigation projects is influenced by the soil moisture content, the temperature of the soil, and the amount of organic matter in the soil.

Strategies for reducing greenhouse gas emissions from dams and irrigation projects include using renewable energy sources for electricity generation, improving the efficiency of water use, and reducing the amount of organic matter in flooded areas.

The release of heavy metals into the environment is not a potential environmental impact of dams and irrigation projects on gaseous waste pollution.

Dams and irrigation projects contribute to the emission of methane (CH4) through the decomposition of organic matter in flooded reservoirs, the fermentation of organic matter in rice paddies, and the hydrolysis of organic matter in flooded soils.

The type of vegetation in the flooded area is not likely to influence the amount of methane (CH4) emitted from dams and irrigation projects.

Dams and irrigation projects contribute to the emission of nitrous oxide (N2O) primarily through denitrification in flooded soils.

The pH of the soil is not likely to influence the amount of nitrous oxide (N2O) emitted from dams and irrigation projects.

Potential strategies for reducing greenhouse gas emissions from dams and irrigation projects include using renewable energy sources for electricity generation, improving the efficiency of water use, and reducing the amount of organic matter in flooded areas.

The release of heavy metals into the environment is not a potential environmental impact of dams and irrigation projects on gaseous waste pollution.

Dams and irrigation projects contribute to the emission of methane (CH4) through the decomposition of organic matter in flooded reservoirs, the fermentation of organic matter in rice paddies, and the hydrolysis of organic matter in flooded soils.