On the Coordinated Development of Coal-Water-Soil Multiple Resources

Coal and its associated resources are important components of geological bodies, and large-scale and high-intensity mining will cause the linkage response of near-surface lithosphere, soil sphere and hydrosphere, which will reverse restrict the safe mining and development of coal and its associated resources. Focusing on the coordinated development of coal water soil resources in coal mining areas, based on the interdisciplinary concept of the Earth's Critical Zone, this paper elaborates on the necessity of coordinated development of coal water soil and the coupling relationship between multiple circles, processes, scales, and objectives, providing strategic thinking for safe and green development of coal and sustainable development of ecological environment. The main content includes: ① Based on the multi-objective and multidimensional perspectives of safe and efficient coal mining, soil water resource security, and ecological environment protection, analyzing the dynamic evolution of geological conditions before, during, and after mining under the background of large-scale and high-intensity development, the spatiotemporal relationship of multiple resources, and the response characteristics of ecological environment, proposing geological survey strategies and development strategies for coal resource areas under the life cycle conditions of coal resource development. ② Conduct a systematic investigation and precise characterization of the geological structure of coal water soil multiple resources, comprehensively understand and evaluate the characteristics and interdependence of coal water soil occurrence, and form a geological investigation and evaluation system and method that integrates resource endowment, ecological environment, population and economy. Propose integrated full chain control measures, development strategies and policies based on coal development, multiple resource utilization, soil and water protection, ecological barriers, land security, etc. ③ Monitor the changes in geological functional structure of geological strata during the development process, understand the dynamic evolution laws of coal water soil spatial combination structure and layered interface effects, as well as coal (rock) water soil interactions, construct an evolutionary model for the safe mining of complex geological strata and coordinated development of water soil resources, clarify the spatial structure of coal water soil and its constraint effects on mining activities, and develop interdisciplinary geological security theories and technologies for green coal development such as earth science, mining science, ecology, hydrology, etc. The research on coordinated development of coal water soil serves the coordinated development of coal safety mining and geological environment protection, solves the contradiction between multiple resource development bottlenecks and geological environment constraints, and constructs a spatiotemporal pattern of coordinated development of coal water soil multiple resources through the understanding of key influencing factors, state parameter thresholds, and evolutionary driving mechanisms of geological conditions and environmental effects throughout the entire life cycle of coal mining, including geological environment constraints, mining mode regulation, and systematic planning and utilization.