کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
4570815 1332076 2017 7 صفحه PDF ندارد دانلود رایگان
عنوان انگلیسی مقاله
Two potential multi-metal hyperaccumulators found in four mining sites in Hunan Province, China
ترجمه فارسی عنوان
دو hyperaccumulators بالقوه چند فلزی پیدا شده در چهار سایت معدن در استان هونان، چین
کلمات کلیدی
فلزات چندگانه؛ استخراج گیاهی؛ Pteris vittata L؛ خاک؛
Multiple metals; Phytoextraction; Pteris vittata L.; Soil; Viola principis H. de Boiss
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
چکیده انگلیسی


• Soil and plant HM concentrations were investigated in 4 sites with 1000 years of mining history.
• P. vittata was found to be an As hyperaccumulator and accumulator of Pb and Sb.
• V. principis was found to be a Cd, Pb and As hyperaccumulator.

Multi-metal pollution in mines and their surrounding areas causes major environmental and health problems. An investigation on the soil quality in four mining sites revealed serious heavy metal (HM) contamination. The contents of As, Pb, Zn, Cd, Cu, and Sb showed high HM pollution. Compared with the national second soil environmental quality standard, the over-standard rates of As, Pb, Zn, Cd, Cu, and Sb were 97.8%, 80.0%, 82.2%, 68.9%, 88.9%, and 73.3%, respectively. Phytoextraction is an emerging remediation technology for HM-contaminated soil. However, hyperaccumulators that can simultaneously extract multi-metals have been rarely reported. A field survey was conducted in the four mining sites; results showed that Pteris vittata L. and Viola principis H. de Boiss were two potential multi-metal extractors. Two plant species could thrive on soils severely contaminated with multiple metals. P. vittata accumulated 4106 mg As kg− 1, 499.5 mg Pb kg− 1, and 321.5 mg Sb kg− 1 in the aboveground parts; by comparison, V. principis accumulated 1032 mg As kg− 1, 2350 mg Pb kg− 1, and 1201 mg Cd kg− 1 in the aboveground parts. The bioaccumulation factor of P. vittata for As, Pb, Zn, and Sb was > 1. The bioaccumulation factor of V. principis for As, Pb, Zn, and Cd was also > 1. Therefore, P. vittata is an As hyperaccumulator and a Pb and Sb accumulator. By contrast, V. principis is a Cd, Pb, and As hyperaccumulator.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: CATENA - Volume 148, Part 1, January 2017, Pages 67–73
نویسندگان
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