通讯：由黑变绿的中国露天煤矿

Core Viewpoint - The transformation of the Heidaigou coal mine from a barren landscape to a green environment showcases successful ecological restoration efforts in China's mining industry [1][2]. Group 1: Environmental Transformation - The Heidaigou coal mine, once characterized by a harsh, barren landscape, has undergone significant greening, with a vegetation coverage rate increasing from 25% to over 85% [2]. - The mine now boasts a reclamation rate of 100%, implementing a model of "extracting one area, reclaiming one area, and greening one area" [2]. - The area has been transformed into a lush environment, resembling a forest park, with various tree species such as cedar and poplar flourishing [4]. Group 2: Ecological and Economic Development - The mine has developed a diverse ecological industry model involving government, enterprises, and farmers, creating over 10,000 acres of high-quality pasture and a thousand acres of ornamental flowers [5]. - The introduction of over 240 plant species and the presence of rare bird species indicate a thriving ecosystem [5]. - The Heidaigou coal mine has evolved into a model for ecological restoration, now serving as a destination for ecological tourism and education [5].