Abstract

This study aims to evaluate the effectiveness of nature-based solutions (NBS) as carbon sinks by estimating greenhouse gas (GHG) emissions and absorption through Life Cycle Assessment (LCA). The study focused on a designated area within the Han Gang River water source management region, calculating GHG emissions and absorption during the implementation of NbS, and deriving the carbon payback period. The results indicate that a total of 5.71 tCO2 of GHGs were emitted during the NBS implementation process, and 150.58 tCO2 were absorbed by 2050. The carbon payback period was estimated to be approximately three years. This research highlights the importance of considering GHG emissions during the NBS implementation process to enhance its effectiveness and suggests the need for further studies for more accurate carbon balance assessments.

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