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 four degrees Celsius during heatwaves. However, the cooling effect depends on tree canopy coverage, not just grass areas. The researchers also noted that residents living within 300 meters of a large park reported better mental health. Interestingly, smaller pocket parks had less impact on temperature but were more accessible for daily walks. So, when designing sustainable cities, planners should prioritize a network of varied green areas rather than a single large park.
❓ 강의에 따르면, 멜버른에서의 연구는 대형 공원에 대해 무엇을 밝혀냈습니까?
A. 그들은 작은 공원보다 온도를 낮추는 데 더 효과적입니다.
B. 나무 덮개가 충분할 때만 냉각 효과가 있다.
C. 그것들은 포켓 공원보다 정신 건강에 덜 유익하다.
D. 그들은 항상 주거 지역에서 300미터 이내에 위치해 있습니다.
✅ 正确答案
They have a cooling effect only when tree coverage is sufficient.