Progress in hydrological control technology for landfill slopes in ecological restoration

Erosion, environmental pollution, and the destabilization of landfill slopes caused by natural disasters and engineering activities have resulted in significant harm and loss of life worldwide. In recent years, ecological slope management strategies based on hydrological process regulation have gained increasing attention and confidence within ecological engineering practice. However, the underlying mechanisms of hydrological regulation and their interactions with ecological restoration processes remain insufficiently understood. To address this issue, this article summarized recent domestic and international advancements in hydrological control of mound slopes. It systematically described the fundamental theoretical framework for hydrological control of mound slopes, analyzed the benefits and limitations of various soil hydrological control techniques for ecological restoration, and explored the impacts of these techniques on different components of the slope ecosystem. Finally, based on the shortcomings and key issues identified in current studies, the present study focuses on the water demands of vegetation on landfill slopes during the ecological restoration process. This study proposes future research directions and suggestions, emphasizing the needs and challenges ahead, and providing a foundation for decision-making regarding sustainable water management and ecological restoration in the region.