ID: 66
Presenting Author: Seohyeon Hong
Status: pending
Greenhouse gas emissions were verified throughout the entire process of dam construction and operation, and as a result, the reduction effect was also confirmed to be significant.
1. Research Methodology
This study analyzed greenhouse gas emissions and reduction quantities associated with the construction, operation, and benefits of Bohyeonsan Dam. Emissions during the construction phase were calculated using the EEIO (Environmentally Extended Input-Output) model, which combines environmental information with input-output analysis. Emissions during the operational phase were estimated using the G-res Tool developed by UNESCO/IHA, reflecting watershed characteristics and reservoir conditions. Furthermore, the study rationally estimated and comprehensively compared/evaluated factors such as damage restoration work required during floods or droughts if the dam did not exist, and the carbon reduction effect of hydropower generation compared to thermal power generation, using the EEIO model and other methods.
2. Results and Discussion
Analysis results indicate that, based on the design life of Bohyeonsan Dam (50 years), approximately 33,329 ton-CO2 eq of greenhouse gases are emitted during the construction phase and approximately 29,800 ton-CO2 eq during the operation phase. Conversely, the greenhouse gas reduction effect achieved through its flood control and water regulation functions, along with hydropower generation, was calculated to be a total of 117,014 ton-CO2 eq. This confirms that the reduction effect accounts for a significant portion relative to emissions. This study holds significance as the first attempt to quantify the greenhouse gas reduction effect resulting from the dam's critical functions.
I am currently employed at the Water Environment Planning Division of K-water.
Coauthor 1: Boseung Kang
Coauthor 2: Seongsu Yu
Coauthor 3: Huiseok Kim
Coauthor 4: Seongjun Heo
Coauthor 5: Changgeun Park