Today, in our environmental science lecture, we'll discuss the impact of urban green spaces. A recent study in Manchester found that increasing tree coverage by 10% could reduce surface temperatures by up to 2.5 degrees Celsius during heatwaves. However, the researchers noted that the effect varies depending on tree species and local wind patterns. They also emphasized that green roofs, while beneficial for insulation, have a smaller cooling effect on street level compared to parks. Interestingly, the study suggested that small, scattered green areas are more effective for cooling than one large park, because they allow better air circulation. This finding challenges previous assumptions in urban planning.
❓ 講義によると、マンチェスターでの研究は都市の緑地について何を明らかにしましたか？
A. A. 大規模な公園は、小さな緑地よりも効果的に都市を冷やします。
B. B. 樹木被覆率を10%増やすことで、気温を最大2.5度低下させることができる。
C. C. 屋上緑化は、街路レベルにおいて最も大きな冷却効果をもたらす。
D. D. 樹木の冷却効果は、局地的な風のパターンとは無関係である。
✅ 正确答案
B. Increasing tree coverage by 10% can lower temperatures by up to 2.5 degrees Celsius.