河北省唐山市地处华北平原东北部边缘，是以能源、原材料为主的重工业城市。特殊的地理位置使唐山肩负着为京津阻风沙、保水源的重任，而以煤、钢、电、水泥等为基础的资源开发型经济又与生态环境存在着矛盾。 近年来，唐山从实际出发，坚持把造林绿化作为生态环境建设的主体， Tangshan City, Hebei Province, is located in the northeast edge of the North China Plain, is a heavy industry based on energy and raw materials. Due to its special geographic location, Tangshan is shouldering the heavy responsibility of Beijing-Tianjin blocking sand and water resources while contradicting the ecological environment with resource-based economy based on coal, steel, electricity and cement. In recent years, Tangshan proceeding from reality, insisting on afforestation as the main body of ecological environment construction,