July 18, 2024 | PTS, Taiwan | (In Chinese)
Taiwan’s Ministry of Environment is currently reviewing the methodology for expanding mangrove forests as a carbon sequestration strategy. While mangroves are globally acknowledged as crucial blue carbon ecosystems, local experts are concerned that this initiative may have unintended negative effects on ecology and biodiversity.
In Taiwan, most mangrove species are non-native. Experts, including Professor Shih Hsiu-Teh from National Chung Hsing University, caution that if the carbon storage in mangrove sediments cannot be assured, the benefits of such planting may be minimal or even counterproductive, potentially exacerbating carbon emissions. Specific areas like Hsinchu Xiangshan, Taipei Guandu, Changhua Wangong, and Fangyuan are already experiencing issues due to overexpansion.
Scholars and environmental groups advocate for a focus on reducing actual emissions rather than depending solely on natural carbon sinks. They warn that without effective sediment carbon storage, planting mangroves could have adverse ecological impacts, akin to planting betel nuts on slopes, which would damage biodiversity and ecosystem health.
The Ministry of Environment is aware of these concerns and is addressing them in its review process. Additionally, the ministry faces difficulties in accurately calculating carbon credits for mangrove projects. Environmental groups stress that carbon offset initiatives must prioritize native ecosystems to ensure their effectiveness and sustainability.
