Effect analysis on ecological geo-environment in the bound of Daliuta coal mining subsidence area

Based on researching on the problems of environmental geological in Daliuta coal mining area the paper analyzed environmental effect about the coal surface collapse.Cumulate mined-out area had gotten to 42.69km² by the end of the july 2005.Its influencing area for the earth's surface was 48.23~54.64km²,It is difficult for investigators to distinguish two knd of physiognomies between the primordial physiognomy and the pbysiognomy of the coal surface collapse by fully mechanized mining technology.The effect for agriculture was not important,but was very remmarkable for the area change of surface water and the drawdown declinling degree of groundwater.This changes for water resource were the main negative effect in Daliuta coal mining area.The deteriorism trend of the soil desertification in mining area was not appearance.On these conditions of proper installing the villager bound coal surface collapse,proteeting important waterhead and lightening the soil desertification in coal surface collapse.Pesople can furthest develop coal resource and come true the aim about the economic development and environmental protection.