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. However, the cooling effect depends on tree canopy coverage; areas with less than 30% canopy showed minimal benefit. Interestingly, the study also noted that residents living within 500 meters of a large park reported better mental health, but only if the park had water features or dense vegetation. So, while small grassy areas are pleasant, they don't provide the same climate regulation or psychological benefits.
❓ 강의에 따르면, 공원이 상당한 냉각 효과를 가지기 위해 필요한 조건은 무엇인가요?
A. A. 주거 지역으로부터 500미터 이내에 있어야 합니다.
B. B. 최소 30%의 나무 캐노피 피복률을 가져야 한다.
C. C. 물 특징을 포함해야 합니다.
D. D. 그것은 울창한 식생을 가진 큰 공원이어야 한다.
✅ 正确答案
B. It should have at least 30% tree canopy coverage.