Today in our environmental science lecture, we'll discuss urban green spaces. A recent study in Melbourne found that adding parks and community gardens to city centers can reduce local temperatures by up to 3 degrees Celsius during summer heatwaves. Interestingly, the cooling effect is strongest within 200 meters of the green area, and it also improves air quality by filtering particulate matter. However, the researchers noted that the benefits depend on regular maintenance, especially watering trees during dry periods. So, while green infrastructure is valuable, it requires ongoing investment from city councils.
❓ 講義によると、都市の緑地がその冷却効果を発揮するための重要な条件は何ですか？
A. それらは住宅建物の近くに位置しなければならない。
B. 彼らは、干ばつの際の水やりなど、一貫した手入れが必要です。
C. それらは200平方メートルより大きいはずです。
D. 公園とコミュニティガーデンの両方を含める必要があります。
✅ 正确答案
They need consistent care, such as watering during droughts.