کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4476636 1315604 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Accumulation and distribution of trace metals within soils and the austral cordgrass Spartina densiflora in a Patagonian salt marsh
ترجمه فارسی عنوان
انباشت و توزیع فلزات ردیابی در خاک و استرلینگ اسپارتینا دوسفلورا در یک نمک شور پاتاگون
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
چکیده انگلیسی


• We evaluated trace metal concentrations in soils and in Spartina densiflora in a North Patagonian salt marsh
• We found moderate pollution and a potentially negative biological effect in soils of one site in the salt marsh.
• Trace metal concentrations found in S. densiflora were lower than the potential phytotoxic levels.

Concentrations of Cd, Cu, Fe, Pb, and Zn were determined in soils and in below- and above-ground structures of Spartina densiflora in a Patagonian salt marsh (San Antonio, Río Negro, Argentina). Also, the relationship between trace metal concentrations in soils and plants was investigated to improve our knowledge regarding the ability of this plant species to take up and accumulate trace metals from the soil. Our results indicate that, within the studied salt marsh, soil trace metal concentrations follow a decreasing concentration gradient toward the sea. They show moderate pollution and a potentially negative biological effect in one site of the salt marsh. While below-ground structures reflect the soil metal concentration pattern, this is not so evident in above-ground concentrations. Also, S. densiflora is able to absorb a limited amount of metals present in the soil, the soil bioaccumulation factor being lower in sites where soil metal concentration is higher.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 101, Issue 1, 15 December 2015, Pages 457–465
نویسندگان
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