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.
❓ 강의에 따르면, 멜버른에서의 연구는 도시 공원에 대해 무엇을 발견했습니까?
A. A. 공원은 100미터보다 클 때만 기온을 낮출 수 있다.
B. B. 냉각 효과는 공원으로부터 100미터 이내에서 가장 두드러지게 나타난다.
C. C. 잔디 지역이 나무가 덮인 지역보다 냉각에 더 효과적이다.
D. D. 모든 공원은 설계와 관계없이 동일한 냉각 효과를 가진다.
✅ 正确答案
B. The cooling effect is most noticeable within 100 meters of a park.