Impact assessment of the existing Ham Thuan and Da Mi Hydropower Projects, Vietnam | |
| Author | Do Quang Khai |
| Call Number | AIT Thesis no.WM-06-3 |
| Subject(s) | Environmental impact analysis--Vietnam--Ham Thuan Project Environmental impact analysis--Vietnam--Da Mi Project |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Water Engineering and Management |
| Publisher | Asian Institute of Technology |
| Abstract | The Ham Thuan and Da Mi hydropower plants in the Southeast of Vietnam operated since 2001 have brought a lot of benefit in terms of socioeconomic development at both the local and national level. Despite their benefit, these hydropower projects also brought some negative impacts like inundation of land and forest areas, flora and fauna, etc. Therefore, environmental impacts assessment is carried out to find the actual impacts of these existing hydropower projects on the socioeconomic and natural environment sector. The rapid impact assessment matrix (RJAM) method is applied for impacts assessment focusing on physical, chemical, biological, ecological, sociological, cultural, economic impacts as well as changes in operational characteristics of the hydropower plants. The results are compared with the predicted impacts during the design stage. Comparing actual impacts of the Ham Thuan and Da Mi hydropower plants on socioeconomic and environmental conditions with the predicted impacts, the results show that the water and electricity supply, flood control, benefit from electricity production, transmission lines has enhanced positive impacts as compared with results predicted during the design stage. The eutrophication, electrical conductivity, publish health was predicted to be severely affected, but the evaluation based on data collected during operation stage indicate the level of effect not that severe. The impact levels of other factors remain the same results predicted in the design stage or impacts are not much. Therefore, overall results of this study show the improving tendency in positive impacts and reducing tendency in negative impacts on physical/chemical, sociological/cultural, and economic/operational components as compared with the forecast during the design stage. However, there are still various factors reducing tendency in positive impacts and increasing tendency in negative impacts on biological/ecological components. Therefore, the monitoring of environment, hydrology, socioeconomic, and other factors should be considered to assess the impact in the future, because most of the parameters will get changed in the course of time and hence the impact will not be same as expected. |
| Year | 2007 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Water Engineering and Management (WM) |
| Chairperson(s) | Babel, Mukand Singh; |
| Examination Committee(s) | Gupta, Ashim Das;Clemente, Roberto S.;Preeda Parkpian; |
| Scholarship Donor(s) | Electricity of Vietnam (EVN); AIT Fellowship; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2007 |