Today in our environmental science lecture, we will discuss the impact of urban green spaces on city temperatures. Recent studies show that parks and gardens can reduce surrounding air temperature by up to 5 degrees Celsius during heatwaves. This cooling effect occurs because plants release water vapor through transpiration, which absorbs heat. However, the size and distribution of green areas matter. Small, isolated gardens have less impact than large connected parks. Also, trees with broad leaves are more effective than those with narrow leaves. City planners should prioritize creating networks of green spaces, not just individual gardens.
❓ Согласно лекции, что является ключевым фактором для максимизации охлаждающего эффекта городских зелёных зон?
A. A. Количество деревьев с узкими листьями
B. B. Размер и связность зелёных зон
C. C. Использование искусственных водных объектов
D. D. Расположение парков вблизи городских центров