Due to the increase in demand for renewable energy a surge in large dam projects for hydropower generation is expected. Because hydropower is one of the most economic energy sources and is renewable along with other benefits such as irrigation, flood mitigation, navigation and water supply. In case of construction of large dams changes in terrestrial ecosystems can alter the climate, soils, vegetation, water resources and bio diversity. Therefore it is essential to understand the environmental impacts of such large dams. The environmental impact assessments can estimate the possible positive and negative environmental impacts and large scale projects are only approved after this impact assessment. The Three Gorges Project (TGP) is the
