Classifying And Estimating For Site Type Of Mines Wasteland

The wastelands formed by iron ore mining have caused serious soil erosion and ecosystem degradation in Beijing, which directly impact the production and living conditions of residents around mining areas as well as regional economic sustainable development. So classifying and estimating for site type of mines wastelands is of great significant foundation for the ecological environment requirements of the belt named ecological conservation and development of capital..Shouyun Co.Ltd is the largest and most representative of iron ore plant in Beijing, and it is typital meaning to choose it for site classifying on study.Through data collection and field survey plots, mining area is more detailedly investigated and researched based on climate, altitude, topography, soil and vegetation recovery, and it is restored into two categories by weather artificial disturbance of vegetation or not:disturbance bare slope and vegetation has been restored slope. Because of different types of surface meterial composition, they are sorted three situations:rock slope, mixed earth and rock slope, slope of three tailings site type groups. Determined their impact factors of sites and samples were surveyed. Using principal component analysis, regression analysis combined with field-judgment determined for each type of group to have a decisive effect against the leading factor, then factor rating method or combination of clustering method to determine the site type, and to name the dominant factors.Finally, based on site factors such as slope grade, aspect, rock weathering degree, soil thickness, revevetation methords, the abandoned iron ore divided into six types of group and 25 site type slope. According to the bare divided into various site types, local conditions, in accordance with the principles of recent natural integrated planning, ecosystem management and a reasonable revegetation measures proposed to create a harmonious social environment for human settlements.