Today in our environmental science lecture, we're discussing urban green spaces. A recent study in Manchester found that adding parks and rooftop gardens can reduce city temperatures by up to 2 degrees Celsius during heatwaves. Interestingly, the cooling effect was strongest not in the largest parks, but in areas with many small, interconnected green spaces. This is because they create continuous corridors for air flow. However, the study also noted that trees near buildings can sometimes trap heat if not properly spaced. The researchers recommend a mix of grass, shrubs, and trees, with at least 30% of the area covered by shade to maximize benefits.
❓ 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見出したのでしょうか？
A. A) 大規模な公園は、常に暑さを軽減するのに最も効果的です。
B. B) 小さく、つながりのある緑地が最も強い冷却効果をもたらす。
C. C) 建物の近くに木を植えて、日陰を最大限に活用すべきである。
D. D) 気温を下げるには、低木よりも草地の方が効果的である。
✅ 正确答案
B) Small, connected green spaces provide the strongest cooling effect.