绿色,是人类最美好的向往。在这秋意渐浓的季节,人们不难发现,秦皇岛更绿了,秦皇岛更美了。东出秦皇岛市区,走上市中心通往山海关老龙头的龙源大道,人们不时会被郊外大片大片的绿树浓荫深深吸引和陶醉。12公里长的龙源大道两侧,营造起了宽30米和50米的防尘林带,林带间杨柳如墙, Green, is the most beautiful longing for mankind. It is not hard to find that Qinhuangdao is greener and Qinhuangdao is even more beautiful in this autumn season. East Qinhuangdao urban areas, take the city center leading to Shanhaiguan Longyuan Avenue, people from time to time will be large tracts of trees outside the suburbs of the deep attraction and intoxicated. 12 km long on both sides of Longyuan Avenue, creating a 30 meters wide and 50 meters of dust forest belt, willow forest walls such as walls,