1331 synergy between fine-grained gangue and tailing coal slime is simple, and the water retention and aeration are optimal when the ratio is 1:1. The ratio of coal gangue is over 60%, and the processing capacity is large. The produced artificial soil has shown remarkable results when used directly for growing vegetables and fruits. The research results have important significance for promoting and providing references for the largescale disposal and resource utilization of coal gangue, agricultural development and construction, and ecological environment management in mining areas. REFERENCES [1] Zhu Lei, Gu Wenzhe, He Zhiwei, et al. Current Situation of Comprehensive Utilization of Coal Gangue and Exploration of High-value Utilization Paths: Taking China National Coal Group Corp. as an Example[J]. Coal Science and Technology, 2025, 53 (6): 104–124. [2] Bi Yinli, Wu Fuyong, Wu Yukun. Improvement and Fertilization of Coal Mining Waste Substrate by Inoculation of Microorganisms[J]. Journal of China Coal Society, 2006 (3): 365–368. [3 ]Hu Longbing, Li Xiaohua. Quantitative Analysis of Highly Cited Literature on Ecological Restoration of Mines in China Based on CiteSpace[J]. Mineral Exploration, 2023, 14 (07): 1215–1222. [4] He Junyu, Ren Yanfang, Li Yaling, et al. Feasibility Study of Coal Gangue as Soilless Culture Substrate[J]. Environmental Science & Technology, 2010 (11). [5] Tong Guanhe, Zhang Kegui, Liu Tianjiao, et al. Influence of New Soilless Culture Substrate Formulation on Growth and Yield of 4 Leafy Vegetables – Taking Culture Substrate Composed of Coal Gangue and Rape Straw as an Example[J]. Research of Agricultural Modernization, 2012, 33 (06): 762– 765. [6] Wang Hanxia. Breeding of Microorganisms Decomposing Coal Gangue[D]. Xi'an University of Science and Technology, 2007. [7] Liu Ziwei. Study on Effect of Different Microbial Agents on Improving Soil Substrate of Reclamation Land in Mining Areas[D]. Liaoning Technical University, 2021. [8] Tang Shengyin, Jiang Yongji, Chen Jing, et al. Main Physical Properties of Coal Gangue and Feasibility Analysis of Its Application in Culture Substrate[J]. Agricultural Research in the Arid Areas, 2014, 32 (03): 209–213. [9] Ma Liu. Study on Soil Improvement Formulation for Lettuce Planting with Coal Gangue as Substrate[D]. Liaoning University, 2021.
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