Soil Improved Effect Of Vegetation Restoration In Coal Waste Piles

Coal waste piles is one of the serious degenerative ecosystemjt's main constitute is Coal wasting.Due to Coal wasting's special physical and chemical character,the entiron-ment of Coal mine is destroyed very much,and many social and environmental problems come into being.So, vegetation restoration in coal waste piles is a principal part of the entironment construction,and an important guarantee of susutainable development in mining areas.In this research,We take the re-vegetation of coal waste piles in ShanDong Coal Mine as an example,Soil improved effects are studied in the process of vegetation restoration from observation in the fixed position and experiment on the spot.The result is that soil improved effects of re-vegetation in coal waste piles are obvious,especially purifying poisonous elements.with the year of re-vegetation is long and long ,The soil improved effects of chemical character are more and more obvious of the same kind tree.Robinia pseudoacacia is the best tree kind to improve soil of re-vegetation in the coal waste piles. Furthermore, with the infiltration time increasing by power function, the soil's infiltration velocity of re-vegetation in coal waste piles decreased.With the depth increasing, the effect of re-vegetation decreasing soil's diurnal temperature range took off, but on the way of decreasing soil's menstrual temperature range boosted up.