第一,城市公园的草坪能缓和太阳的热辐射,有效地降低温度,调节小气候。夏天市区里被太阳晒热的建筑物,就是附加的热源,使气温升高和气闷。即使是日落后的傍晚,水泥铺装的广场以及拍油马路仍然继续放出热量,使得市中心普遍比郊区气温要高出一至二度。但适当减少铺装面积,多种些草坪,那么情况就大大不同。根据有关城市的测 First, the lawns in urban parks can moderate the sun’s thermal radiation, effectively lowering the temperature and regulating the microclimate. Summer sun in the city building is the sun, is an additional source of heat, so that temperatures and gas filled with nausea. Even in the late afternoon after sunset, the paved squares and the oil-fired road continue to emit heat, making the city center generally one to two degrees above the suburbs. However, appropriate to reduce the pavement area, a variety of lawn, then the situation is very different. According to the test of the city