亚马孙雨林为何旱季降雨减少？最新研究称近75%归因于森林砍伐

Core Insights - The recent study published in the journal "Nature Communications" indicates that nearly 75% of the reduction in rainfall during the dry season in the Amazon rainforest since 1985 is attributed to deforestation [1][4][5] Group 1: Deforestation Impact - Deforestation has led to a decrease of 15.8 millimeters in rainfall each dry season, accounting for nearly 75% of the total reduction in rainfall [4] - The study found that deforestation contributes to a 2°C increase in surface temperatures, with 16.5% of this increase attributed to deforestation itself [4] - The most significant climatic impacts from deforestation occur during the initial stages when forest cover loss is between 10% and 40% [4] Group 2: Climate Change Interaction - The combined effects of greenhouse gas emissions and deforestation have altered the water, carbon, and energy cycles in the Amazon [4] - The study emphasizes the importance of understanding the relationship between deforestation and global climate change to develop effective mitigation and adaptation strategies [5] Group 3: Future Projections - If current deforestation rates continue, the Amazon region is projected to warm by a total of 2.64°C and experience a reduction of 28.3 millimeters in rainfall by 2035 compared to 1985 levels [4]