Today in our environmental science lecture, we're discussing urban green spaces. A recent study in Melbourne found that increasing tree canopy coverage by just 10% can reduce local temperatures by up to 2.5 degrees Celsius during summer heatwaves. However, the study also noted that the placement of trees matters more than the total number. Trees planted along streets and near buildings provide the most significant cooling effect, while those in large parks have less impact on surrounding residential areas. Additionally, the researchers emphasized that maintenance costs, such as watering and pruning, are often underestimated by city planners.
❓ 講義によると、メルボルンの研究では都市の樹木について何が判明したのでしょうか？
A. A) 公園に木を増やすことが、都市を涼しくする最も効果的な方法です。
B. B) 木々の位置は、その総数よりも重要である。
C. C) 植樹費用は通常、都市計画者によって過大評価されている。
D. D) 樹冠が10%増加すると、気温を5度下げることができる。
✅ 正确答案
B) The location of trees is more important than the total number of trees.