The gravel pits have been landscaped and planted to make them attractive to wildfowl.砾石采掘坑已进行了景观美化并种上了草木，希望能吸引野禽的到来。They extract ten million tons of coal each year from underwater mines.他们每年从水下煤矿中采掘一千万吨煤。Conservationists protested against the uncontrolled peat digging.自然环境保护者抗议无节制的泥炭采掘。