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开矿与环境保护问题早在1872年美国就有采矿法。当时为了鼓励美国人民采矿西移,任何公民在探到矿可采的时候,不但可自由采矿,而且那块公地也变为矿权人的私有地。所以,人大批的向西部移。这种探(采)矿法实施之后发现,煤矿很容易探采,而且石油价值愈来愈高,大家争先恐后,不应白送给他们。所以,1920年建立矿产出租法案,规定比较有经济价值的矿产(如煤、石油、天然气、磷和硫矿)应以出租方式办,出租期间矿权者可探矿、采矿,采完之后土地归还国家。采矿期间则受政府之监督。出租矿产,可采性高的地方则招标出租,高标得租,政
Mining and Environmental Protection As early as 1872, the United States had mining laws. At that time, in order to encourage the people of the United States to move westward, any citizen, while exploring the mine recoverable, was not only free to mine, but also had to become the private land of the patentee. Therefore, a large number of people moved to the west. After the implementation of such exploration (mining) method, it was found that the coal mines were easy to explore and exploit, and the oil value was getting higher and higher. Everyone was scrambling to give them away. Therefore, the establishment of the Mineral Leasing Act in 1920 stipulated that more economically valuable minerals (such as coal, petroleum, natural gas, phosphorus and sulfur mines) should be run by way of leasing. During the leasing period, the mineral rights holders could prospect and mine the land after the mining country. During the mining period, government supervision. Rental minerals, recoverable places are tender bidding, high standard of rent, politics