Today, in our environmental science lecture, we'll discuss urban green spaces. A recent study in Melbourne found that parks can reduce local temperatures by up to 4 degrees Celsius during heatwaves. This cooling effect is mainly due to shade and evapotranspiration from trees. However, the researchers noted that the benefit is strongest within 100 meters of the park. Beyond that distance, the temperature difference drops significantly. Also, they observed that larger parks with diverse tree species provide more consistent cooling than smaller, grassy areas. So, for city planners, it's not just about having green spaces, but their size and design matter.
❓ 講義によると、メルボルンの研究では都市公園について何が明らかになったのでしょうか？
A. A. 公園は、100メートルより大きい場合にのみ気温を下げる。
B. B. 冷却効果は公園から100メートル以内で最も顕著である。
C. C. 草地は樹木に覆われた地域よりも冷却に効果的である。
D. D. すべての公園は、デザインに関係なく同じ冷却効果を持つ。
✅ 正确答案
B. The cooling effect is most noticeable within 100 meters of a park.