Today, in our environmental science lecture, we'll discuss the impact of urban green spaces. A recent study in Melbourne found that increasing tree cover by just 10% can reduce local temperatures by up to 2.3 degrees Celsius during summer. However, this effect is strongest when trees are planted near buildings, not just along streets. The study also highlighted that parks with a mix of native and non-native species attract more bird diversity, but native trees require 30% less water. Interestingly, the researchers noted that while residents preferred large lawns for recreation, these areas contributed least to cooling, compared to shaded walkways or community gardens.
❓ 강의에 따르면, 멜버른 연구는 나무 덮개를 10% 늘렸을 때의 효과에 대해 무엇을 발견했습니까?
A. A. 나무가 거리를 따라 심어질 때 주로 기온을 낮춘다.
B. B. 여름철 지역 기온을 최대 섭씨 2.3도까지 낮춥니다.
C. C. 그것은 토종 나무보다 조류 다양성을 더 효과적으로 증가시킨다.
D. D. 토착종이 아닌 종보다 물이 30% 더 필요하다.
✅ 正确答案
B. It reduces local temperatures by up to 2.3 degrees Celsius in summer.