南京某铁矿区矿业活动对土壤重金属的累积效应.pdfVIP

B 4 M b p 戶 保 职 与 刷 用 i*. 4 2016 ip 8 il CONSERVATION AND UTILIZATION OF MINERAL RESOURCES Aug , 2016 矿 山 环 境 南京某铁矿区矿业活动对土壤重金属的累积效应 毛香菊1,2\邹安华3,马亚梦1,2,肖芳1,2,冯安生1,2,孙体昌3 ( 1 . 中国地质科学院郑州矿产综合利用研究所，河南郑州4 5 0 0 0 6 ; 2 .国土资源部多金属矿评价与综合利用 重点实验室，河南郑州 4 5 0 0 0 6 ; 3 . 北京科技大学，北京 1 0 0 0 8 3 ) 摘要:人类活动会导致土壤重金属的累积，其中矿业活动是土壤重金属累积的重要原因。采集南京某铁矿 区矿业活动区、矿业活动影响区和未受矿业活动影响的对照区表层土壤，测试其中的重金属Cd 、Cr 、Cu 、AS、 Hg 、N i 和 Pb 含量，分析7 种重金属之间的相关性，分别以对照区表层土壤重金属总量、对照区土壤似背景值 评价矿业活动对活动区和影响区土壤重金属的累积贡献量和贡献率。结果发现，矿业活动对活动区重金属 累计贡献率顺序为Cd Pb Cu As Cr Ni Hg ，对影响区重金属累计贡献率依次为Cr Hg As Cd Pb Cu Ni 。矿业活动区Pb 和 Cd表现为极高累积和极高风险，应引起足够的重视，加大相关治理力度。 关键词:铁矿区;矿业活动;土壤;重金属累积 中图分类号:X53 文献标志码:B 文章编号:1001 -0076(2016)04 - 0050 - 06 D01：10.13779/j . cnki . issnlOOl -0076.2016.04.011 The Cumulative Effects of Mining Activities on the Heavy Metals in Soils of an Iron Mine in Nanjing MAO Xiangju1，2 *， ZOU Anhua3， MA Yameng1，2， XIAO Fang1，2， FENG Ansheng1，2， SUN Tichang3 (1 .Zhengzhou Institute of Multipurpose Utilization of Mineral Resources, Zhengzhou 450006, China ；2. Key Laboratory of Evaluation and Multipurpose Utilization of Polymetallic Ores, Ministry of Land and Resources, Zhengzhou 450006, China 3. Beingjing ； University of Science and Technology, Beingjing 10083, China) A bstract ：Human activities could lead to heavy metals accumulation in soil , and mining activity is one of the important factors . The surface soil samples of iron mining area , influenced area and com ­ pared area were collected , and heavy metals (including Cd , Cr , Cu , As , Hg , Ni and Pb ) content of these soil samples were measured . Based on the relationships of these metal and the result