138公顷废弃矿山复绿生金

Core Insights - The ecological restoration case of the abandoned mining area in San Guankou, Jingyuan County, Ningxia Hui Autonomous Region, has been successfully selected as one of the second batch of typical cases for national mining area ecological restoration, exemplifying the implementation of the concept "Lucid waters and lush mountains are invaluable assets" [1] Group 1: Ecological Restoration Efforts - The San Guankou area was a major production zone for building materials in Ningxia and surrounding regions, with significant restoration efforts initiated in 2017 under the "Green Shield 2017" campaign, involving an investment of 120 million yuan [1] - A total of 33 lime kilns, 6 stone material factories, and 2 cement plants were shut down, with 22,395 square meters of structures demolished and a remediation area of 138.51 hectares [1] - The restoration process integrated a comprehensive governance approach, including shutdown and withdrawal, landform reshaping, scientific re-greening, water system activation, and long-term management [1] Group 2: Environmental and Economic Impact - The restoration efforts led to the planting of 160,000 trees, including oil pines, willows, and sea buckthorns, along with over 20 types of grass species, effectively curbing geological disasters and soil erosion [1] - The ecological restoration has significantly improved the green coverage of the abandoned mining area and air quality, with the water quality of the Xie River segment stabilizing above Class II standards [2] - Local residents have shifted from relying on mining jobs to diversified income sources from green industries, with thriving developments in cattle farming, traditional Chinese medicine cultivation, and mushroom production in surrounding villages [2]