由于各种原因,我国经济增长的粗放型特征还很明显,单位GDP的能源消耗、污染排放均高于发达国家,水、土地、能源、矿产等资源不足的矛盾会越来越突出,生态建设和环境保护的形势日益严峻。发展循环经济是缓解资源约束矛盾的根本出路。钢铁行业是能源、水资源、矿石资源消耗大的资 Due to various reasons, the extensive feature of China’s economic growth is still obvious. The energy consumption and pollution discharge per unit of GDP are higher than that of developed countries. The contradictions of insufficient resources such as water, land, energy, mineral resources and so on will become more and more prominent. Ecological construction And the situation of environmental protection is more and more serious. The development of circular economy is to alleviate the contradiction between resource constraints the fundamental way out. Iron and steel industry is energy, water resources, ore resources expensive