Today in our environmental science lecture, we're discussing urban green spaces. A recent study in Melbourne found that increasing tree canopy cover by just 10% can reduce local temperatures by up to 2.5 degrees Celsius during heatwaves. This happens because trees provide shade and release moisture through transpiration. However, the study also noted that the benefits are strongest in densely built areas with limited existing vegetation. Researchers recommend prioritizing planting in low-income neighborhoods, where green space is often scarce, to maximize both cooling and social equity benefits. They also warn that maintenance costs can be high, so choosing drought-resistant species is crucial for long-term success.
❓ 강의에 따르면, 멜버른에서의 연구는 나무 캐노피 피복이 10% 증가했을 때 무엇을 밝혀냈습니까?
A. A. 모든 지역에서 도시 기온을 정확히 2.5도 낮춥니다.
B. B. 폭염 기간 동안 국지 기온을 최대 2.5도까지 낮출 수 있습니다.
C. C. 밀집된 건축 지역에서는 효과가 없다.
D. D. 저소득 지역의 습도 수준을 크게 증가시킵니다.
✅ 正确答案
B. It can lower local temperatures by up to 2.5 degrees during heatwaves.