Today in our environmental science lecture, we'll discuss urban green spaces. A recent study in Melbourne found that parks can reduce surrounding temperatures by up to 4 degrees Celsius during heatwaves. However, the cooling effect diminishes significantly beyond 100 meters from the park boundary. Interestingly, the study also showed that trees are more effective than grass at cooling, because they provide shade and release moisture through transpiration. The researchers recommend planting a mix of native and non-native species, but emphasize that native trees require less water and support local biodiversity. So, when designing new parks, city planners should prioritize native canopy trees over ornamental lawns.
❓ 根据讲座内容，关于城市公园降温效果的一个关键发现是什么？
A. Он простирается до 100 метров от парка.
B. Это наиболее выражено для парков с большими травяными зонами.
C. За пределами 100 метров оно полностью исчезает.
D. Для неродных деревьев это больше, чем для местных.