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.
❓ 根据讲座内容，墨尔本的研究发现关于城市树木的结论是什么？
A. A) 在公园里增加更多树木是给城市降温最有效的方法。
B. B) 树木的位置比树木的总数量更为重要。
C. C) 城市规划者通常高估了植树成本。
D. D) 树冠覆盖率增加10%可使温度降低5度。
✅ 正确答案
B) The location of trees is more important than the total number of trees.