Scientists have discovered a potential large carbon sink in New Zealand’s South Island, particularly in mature native forests like those in Fiordland. However, they emphasize that further research is needed to understand where the significant amounts of disappearing carbon dioxide are going. Lead researcher Beata Bukosa from NIWA noted that their studies indicate these forests sequester far more carbon than previously estimated—approximately 171 million tonnes of CO2 annually, which is significantly higher than earlier figures.
The research method differs from the official greenhouse gas inventory, revealing discrepancies greater than variations explained by different calculations. The findings suggest that factors like forest regeneration and pest control may enhance carbon uptake. Bukosa indicated that forests’ responses to climate change or erosion might contribute to this increased carbon absorption. With insights from previous studies, researchers aim to refine methods for tracking carbon capture in New Zealand’s ecosystems, ultimately supporting the country’s climate goals and reducing reliance on international carbon credits.
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