继污染防治、达标排放、清洁生产、废物利用之后,20世纪80年代初,一个全新的环境保护理念一循环经济,被环境理论学家们首次提出,并立即受到世界各国的广泛关注。所谓循环经济,本质上是一种生态经济,它要求运用生态学规律而不是机械的规律来指导人类社会的经济活动。与传统的“资源-产品-污染排放”单向流动的线性经济不同, Following the prevention and control of pollution, discharge standards, cleaner production and waste utilization, a completely new concept of environmental protection, a recycling economy, was first proposed by environmental theorists in the early 1980s and immediately received the widespread attention of all countries in the world. The so-called circular economy is essentially an ecological economy, which requires the use of ecological laws rather than mechanical laws to guide the economic activities of human society. Different from the traditional one-way linear economy of “resource-product-pollution discharge”