北京西南部深山区。作为北京市重点产煤乡镇之一,房山区大安山乡就坐落在此。因煤而兴的大安山乡,曾经因煤而痛。2005年按照国家产业结构调整政策,大安山乡关闭了所有煤矿,当地数百年的采煤史宣告结束。人均年收入随之滑落。大安山乡的人均年收入由采煤前的10000元以上骤减至3000元。 Southwest Beijing deep mountain area. As one of the key coal producing towns in Beijing, Fangshan District Da’an Township is located here. Due to coal and Xing Da’an Township, once because of the pain of coal. In 2005, in accordance with the state’s industrial restructuring policy, Da’an Township closed all coal mines and the local history of hundreds of years of coal mining ended. Annual per capita income slipped. Daan Shan per capita annual income from coal mining before the 10,000 yuan plummeted to 3,000 yuan.