5Wu Q Y, Pang J W, Qi S Z,et al. Impacts of coal mining subsid- ence on the surface landscape in l.mgkou City,Shandong Province of China [ J ]. Environmental Earth Sciences, 2009,59 ( 4 ) : 783 - 791.
6Wang H Q, Zhou Y J, Chen L, et al. The dynamic monitoring on mining collapsing around Xinglongzhuang coal mine based on re- mote sensing images[ J]. Advanced Materials Research ,2013,726 - 731:4625 - 4630.
7Wang H Q. Mining subsidence monitoring around Longgu coal mine based on remote sensing[ J]. Advanced Materials Research,2014, 1010 - 1012:489 - 495.