Comparing the variation and influencing factors of CO2 emission from subsidence waterbodies under different restoration modes in coal mining area

The Patterns of Migration of Potentially Toxic Elements from Coal Mining Subsidence Areas and Associated Soils to Waterlogged Areas

“…Long-term underground coal mining has brought about a series of ecological problems, restraining the sustainable development of society [1]. The most prominent among them is the issue of coal-mining-related subsidence and water accumulation [2,3]. The scale of high-groundwater-level waterlogged areas with coal mining subsidence in China reaches up to 2000 km 2 .…”

“…The most prominent among them is the issue of coal-mining-related subsidence and water accumulation [2,3]. The scale of high-groundwater-level waterlogged areas with coal mining subsidence in China reaches up to 2000 km 2 . The water bodies in the subsided areas are generally closed or semi-closed systems with poor water circulation and limited self-purification capacity, resulting in the disruption of surface water systems and degradation of water quality [4].…”

“…This includes activities such as aquaculture development and the creation of landscaped wetlands within the waterlogged areas [13]. Furthermore, under the pressure of "carbon neutrality" and "carbon emission reduction", an increasing number of waterlogged areas are being developed as photovoltaic wetlands or fish-photovoltaic complementary wetlands [2,14]. These development approaches can enhance the environmental aesthetics of the waterlogged areas and provide economic and energy value [15,16].…”