Ecological Restoration and Protection of National Land Space in Coal Resource-Based Cities from the Perspective of Ecological Security Pattern: A Case Study in Huaibei City, China

Mining activities have contributed to the growth of city, but also raised non-negligible eco-geological environmental issues that threaten ecological safety. Ecological security pattern (ESP), as an important grip on restoration and protection national land space, helps balance mining in coal resource-based cities. Taking Huaibei City a study area, we applied ESP research paradigm: ecosystem “function-structure” conceptual framework was developed identify sources, “coal subsidence—economic activities” used revise resistance surface, circuit theory extract corridors. Then, key areas for were identified, including pinch points, barrier fracture points. Finally, strategies proposed. Study results show there 51 covering area 152.75 km2; 111 corridors extracted with 6000 truncation threshold; 17 75 117 points identified. patterns “one axis, two shields, four zones, eight belts multiple corridors”, The are sustainable development coal-resource-based