简述北京永定河沿岸的地质背景

永定河之名诞生于1698年。永定河跨越延庆盆地、北京西山和北京平原3大地貌单元,是北京的母亲河。门头沟区为永定河山峡,有沿河城断裂、马兰黄土和永定河断裂等地质现象,应考虑沿岸的地学旅游开发;石景山区为永定河冲洪积扇的顶部带,应考虑城市地下空间发展的布局;丰台区横跨永定河两岸,有卢沟桥、河西的长辛店砾岩与河东的古河道,应考虑防止地下水污染的措施;房山区位于永定河西岸,有房山世界地质公园、董家林西周遗址和良乡地热田,应考虑地学旅游开发和低炭经济发展;大兴区位于永定河东岸,有以庞各庄西瓜为代表的永定河沙带作物、南海子湿地和亦庄工业开发区,应考虑沙地农作物的分区与工业开发区的关系。永定河沿岸5区的开发要考虑地质背景,实现科学发展观。

Geological Background along the Banks of theYongding River

The Yongding River, the mother river of Beijing, was named in 1698. It is passing through Yanqing Basin, Beijing Western Hills and Beijing Plain. There are Yanhecheng Fault, Malan Loess and Yongding River Fault in Mentougou District in Yongding River Canyon, and the geological tour should be thought here. Shijingshan District is on the top of alluvial-fan of the Yongdinghe River. It is valid for underground space layout. There are Lugou Bridge, Changxindian Fro. conglomerates and ancient riverway in Fengtai Distrct, and it needs preventing underground water pollution. The geological tour and low-carbon economy should be thought in Fangshan District, for its Fangshan Global Geopark, Site in Western Zhou Dynasty and Liangxiang Geothermal Field. Finally, Daxing District should be considered about the relationship between agriculture and industry, for its famous watermelon, swamp of Nanhaizi and Yizhuang Industrial Development Zone.