[1]赵雅曼,陈顺钰,李宗勋,等.铅锌矿集区7种草本植物对重金属的富集效果[J].森林与环境学报,2019,39(03):232-240.[doi:10.13324/j.cnki.jfcf.2019.03.002]
 ZHAO Yaman,CHEN Shunyu,LI Zongxun,et al.Absorption and enrichment effects of herbaceous species on soil heavy metals in the Youxi lead-zinc mining area[J].,2019,39(03):232-240.[doi:10.13324/j.cnki.jfcf.2019.03.002]
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铅锌矿集区7种草本植物对重金属的富集效果()
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《森林与环境学报》[ISSN:2096-0018/CN:35-1327/S]

卷:
39
期数:
2019年03期
页码:
232-240
栏目:
出版日期:
2019-05-08

文章信息/Info

Title:
Absorption and enrichment effects of herbaceous species on soil heavy metals in the Youxi lead-zinc mining area
作者:
赵雅曼1 陈顺钰1 李宗勋1 韩航1 侯晓龙12 蔡丽平12
1. 福建农林大学林学院, 福建 福州 350002;
2. 海峡两岸红壤区水土保持协同创新中心, 福建 福州 350002
Author(s):
ZHAO Yaman1 CHEN Shunyu1 LI Zongxun1 HAN Hang1 HOU Xiaolong12 CAI Liping12
1. College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China;
2. Co-innovation Center for Soil and Water Conservation in Red Soil Region of the Cross-straits, Fuzhou, Fujian 350002, China
关键词:
尤溪铅锌矿集区重金属植物修复转运系数富集
Keywords:
Youxi lead-zinc mining areaheavy metalsphytoremediationtranslocation factorbioconcentration
分类号:
X503.233;Q945.78
DOI:
10.13324/j.cnki.jfcf.2019.03.002
摘要:
为筛选出可用于修复土壤重金属污染的植物种类,采集矿区主要分布的7种草本(芦苇、芒萁、笔管草、乌蕨、乌毛蕨、藿香蓟和毛蕨)及植物采样点的表层土壤(0~30 cm),测定采集植物地上和地下部分及采样点土壤重金属含量(Cd、Pb、Zn和Cu),分析7种草本对重金属的富集效果。结果表明:采样点土壤Cd、Pb、Zn和Cu平均含量均超过国家土壤环境质量标准和福建省土壤背景值,其中Cd分别超标21.77和604.60倍,污染最为严重;芦苇地上部分Pb含量、富集系数和转运系数均达到Pb超富集植物的标准,对Cd和Cu也有强的富集能力,其转运和富集系数均大于1;藿香蓟对Cd和Cu有较强的吸收能力,且对这两种重金属的转运和富集系数均大于1,是Cd和Cu的潜在富集植物;笔管草和乌蕨对Cd、Pb、Zn和Cu具有一定吸收能力,且转运系数均大于1,对被此4种重金属污染的土壤具有一定的修复能力,但富集系数均小于1;乌毛蕨和毛蕨的重金属吸收、富集能力相对较弱;随土壤重金属含量的增加,芒萁体内重金属含量、转运和富集系数未显示明显规律,芒萁对Cd、Pb和Cu均具有较强的吸收能力,且对这3种重金属的转运系数和富集系数均大于1,是潜在的多金属富集植物。
Abstract:
The objective of this study was to screen plant species that can be used to remediate heavy metal polluted soil. For this purpose, the contents of heavy metals (Cd, Pb, Zn, and Cu) in 7 herbaceous plant species (Phragmites australis, Dicranopteris dichotoma, Equisetum ramosissimum, Stenoloma chusanum, Blechnum orientale, Ageratum conyzoides, and Cyclosorus interruptus), which were naturally growing in a mined area and in the rhizosphere soil (0-30 cm) were determined. The coefficients of translocation and bioaccumulation of the heavy metals by the plants were evaluated. The results showed that the average contents of Cd, Pb, Zn, and Cu in the soil at the sampling area were higher than the national soil environmental quality standard and soil background value of the Fujian Province; Cd pollution was the most serious among the heavy metals assessed, exceeding the abovementioned standard values by 21.77 and 604.60 times, respectively. The Pb content, translocation factors, and bioconcentration factors of P. australis in the aboveground biomass reached the standard of a Pb hyper-accumulator and also had a strong Cd and Cu accumulation ability. The Cd and Cu translocation and bioconcentration factors of A. conyzoides were both greater than 1, which indicated a potential polymetallic accumulation ability for Cd and Cu. E. ramosissimum and S. chusanum had a certain absorption capacity for Cd, Pb, Zn, and Cu. Additionally, the translocation factors for E. ramosissimum and S. chusanum reached the standard of hyper-accumulator plants, but its bioconcentration factors were less than 1; thus, they have a certain ability to remediate soil polluted by the four heavy metals. The heavy metal absorption and accumulation abilities of B. orientale and C. interruptus were relatively weak, which suggests that these species could be heavy metal excluders. The contents and transport and enrichment coefficients of heavy metals in D. dichotoma did not uniformly increase with an increase in the heavy metal contents of the soil. However, D. dichotoma did have a strong absorption capacity for Cd, Pb, and Cu, for which the translocation and bioconcentration factors were all greater than 1. In conclusion, P. australis, A. conyzoides, E. ramosissimum, S. chusanum, and D. dichotoma are hyper-accumulators that are suitable for phytoremediation of heavy metal polluted soils. Tentatively, B. orientale and C. interruptus could be heavy metal excluders, but further research is needed to confirm this proposition.

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备注/Memo

备注/Memo:
收稿日期:2018-5-18;改回日期:2018-11-26。
基金项目:福建省科技厅重点项目(2017Y0001);福建省环保科技计划项目(2018R012);福建农林大学科技创新专项基金项目(CXZX2018126、CXZX2018137)。
作者简介:赵雅曼(1996-),女,硕士研究生,从事退化地生态修复研究。Email:879154217@qq.com。
通讯作者:侯晓龙(1981-),男,副教授,从事重金属污染及防治研究。Email:xl.hou@fafu.edu.cn。
更新日期/Last Update: 1900-01-01