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在美国北方大平原,露天煤矿在过去的十年间显著地增加.采矿后,受扰动地区的植被必须迅速恢复,以保护重建的矿区土壤剖面不受侵蚀.
In the northern Great Plains of the United States, open-cast mines have increased significantly in the past decade, and vegetation in the disturbed areas must be promptly restored after mining to protect the soil profile of the rebuilt mining area from erosion.