CAJ | 학술논문

为探明广西元宝山的重金属矿区周边农田重金属污染现状，分析了2009~2011年柳州市融水县元宝山矿区周边的水田和旱田土壤中重金属Pb，Cd，As，Zn，Cu和Hg的含量，探讨该地区农田土壤中的重金属统计特征和年度变化趋势，并利用内梅罗污染指数法评价污染程度.结果表明，6个农田中Hg含量（0.1 mg·kg－1~2.0 mg·kg－1）超标最严重，调查农田中8.3％样点的土壤Hg含量超过了国家土壤环境质量二级标准（GB 15618－1995），而Pb，Cd，As，Zn和Cu含量均低于此标准.6块农田土壤中同种重金属含量在2009~2011年不同年份间无显著差异（P＞0.05），初步说明，调查土壤中的重金属富集量没有随时间的累加特性.此外，调查农田土壤的6种重金属间无明显相关性，其重金属来源有待进一步研究.根据内梅罗污染综合指数判断，多数监测点位土壤处于警戒级，个别位点的土壤处于轻污染.
위탐명엄서원보산적중금속광구주변농전중금속오염현상，분석료2009~2011년류주시융수현원보산광구주변적수전화한전토양중중금속Pb，Cd，As，Zn，Cu화Hg적함량，탐토해지구농전토양중적중금속통계특정화년도변화추세，병이용내매라오염지수법평개오염정도.결과표명，6개농전중Hg함량（0.1 mg·kg－1~2.0 mg·kg－1）초표최엄중，조사농전중8.3％양점적토양Hg함량초과료국가토양배경질량이급표준（GB 15618－1995），이Pb，Cd，As，Zn화Cu함량균저우차표준.6괴농전토양중동충중금속함량재2009~2011년불동년빈간무현저차이（P＞0.05），초보설명，조사토양중적중금속부집량몰유수시간적루가특성.차외，조사농전토양적6충중금속간무명현상관성，기중금속래원유대진일보연구.근거내매라오염종합지수판단，다수감측점위토양처우경계급，개별위점적토양처우경오염.
To explore the influence of Yuanbaoshan Mine in Rongshui of Guangxi to farmland soil nearby, The annual variability and statistical characteristics of heavy metals Cu, Zn, Pb Cd, As, and Hg in paddy and dry farmland soils around Yuanbaoshan Mine were presented, on the basis of continuous yearly monitoring from 2009 to 2011. The potential ecological risks of these heavy metals were also assessed according to their Nemerow indices. The results showed that the concentrations of the six heavy metals in all of the soil samples were lower than those critical values of the National Soil Quality Standard (Grade II)except Hg. The Nemerow index showed that most soils monitored were at warning stage and several soils were slightly polluted. The heavy metals contents of the 6 farmlands did not reach significant level (p>0.05) from 2009 to 2013. The correlation analysis showed that there little relationship among the six metals, which meant that the heavy metals were not drive from Yuanbaoshan Mine and their possible sources might different.