Today in our environmental science lecture, we're discussing urban green spaces. A recent study in Melbourne found that adding more parks and trees in city centers can reduce local temperatures by up to 3 degrees Celsius during summer heatwaves. This cooling effect is mainly due to shade and evapotranspiration. Interestingly, the study also noted that while green roofs are effective for insulation, they have less impact on street-level temperature compared to street trees. The researchers recommend prioritizing tree planting along busy roads and near residential buildings, as these areas benefit most from reduced heat exposure. However, they warned that water availability is a key constraint in drier climates, so sustainable irrigation systems must be considered.
❓ 강의에 따르면, 멜버른에서의 연구는 녹색 지붕과 비교하여 가로수가 어떤 점을 발견했는가?
A. A) 가로수는 거리 수준의 온도를 낮추는 데 더 효과적이다.
B. B) 녹색 지붕은 더 나은 단열을 제공할 뿐만 아니라 거리의 열도 줄여줍니다.
C. C) 둘 다 도시 기온을 낮추는 데 있어 동등하게 효과적입니다.
D. D) 옥상 녹화는 주거용 건물에 더 유익하다.
✅ 正确答案
A) Street trees are more effective at lowering street-level temperatures.