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 effect depends on tree canopy coverage. Areas with less than 30% canopy showed minimal cooling. Interestingly, small pocket parks with dense trees were more effective than larger open lawns. The study also noted that residents living within 500 meters of a green space reported better mental health. But researchers warned that simply adding grass without trees does little to combat urban heat, and recommended prioritizing tree planting in disadvantaged neighborhoods.
❓ 강의에 따르면, 도시 공원이 지역 기온을 크게 낮추기 위해 필요한 조건은 무엇인가요?
A. A. 공원의 지름은 500미터보다 커야 한다
B. B. 공원은 최소 30%의 수목 캐노피 피복률을 유지해야 한다.
C. C. 공원은 소외된 지역에 위치해야 한다
D. D. 공원에는 빽빽한 나무보다는 탁 트인 잔디밭이 있어야 한다.
✅ 正确答案
B. The park should have at least 30% tree canopy coverage