中文摘要：

对铜陵杨山冲尾矿库能源植物生产示范基地尾砂的基本理化性质和污染特征进行了研究，结果表明：基地表层尾砂pH空间变异很大（oH2．65～9．02），基地西南端尾砂呈碱性，平均容重为1．82g／cm^3；东北端呈酸性，平均容重为1．17g／cm^3,酸化只发生在尾砂表层20cm。0．43mol／L HNO3提取态（吸附态）As、Cu、Zn、Pb、Cd以及0．1mol／LNaNO3提取态（有效态）Cu、Zn含量水平较高，不同提取态重金属空间分布存在较大差异。研究结果初步明确了尾矿库能源植物生长的限制因子，为下一步筛选尾砂改良剂奠定了基础。

英文摘要：

This study was focused on basic physio-chemical characters and pollution characteristics of tailing in production demonstration base of energy plants for Yangshanchong Copper Mine Tailing Reservoir of Tongling. The results showed that there was a great spatial variance of pH（pH 2.65-9.02） in surface layer of base tail, the tail on southwest end （high latitude） of base was alkaline and the average bulk density was 1.82 g/cm^3, and the tail on northeast end （low latitude） of base was acidic and the average bulk density was 1.17 g/cm^3. Acidification only occurred in the top 20 cm of surface layer of tail. The contents of adsorbed As, Cu, Zn, Pb and Cd extracted by 0.43 mol/L HNO3 and available Cu, Zn extracted by 0.1 mol/L NaNO3 were higher and the spatial distribution of different extractable heavy metals was different. The potential limiting factors on the growth of energy plants in copper mine tailing reservoir were identified and it would provide basis on screening amendments of tailing further.