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بررسی توانایی گیاهپالایی گونههای مرتعی به خاک های آلوده به مس و منگنز | ||
| تحقیقات آب و خاک ایران | ||
| مقاله 331، دوره 51، شماره 6، شهریور 1399، صفحه 1593-1604 اصل مقاله (863.41 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/ijswr.2020.293146.668417 | ||
| نویسندگان | ||
| تهمینه صحیحی1؛ محمد جعفری* 2؛ سید اکبر جوادی3؛ محمد طهمورث4 | ||
| 1دانش آموخته کارشناسی ارشد دانشکده مهندسی منابع طبیعی و محیط زیست، گروه مرتع و آبخیزداری، دانشگاه آزاد اسلامی واحد علوم و تحقیقات (تهران) | ||
| 2دانشکده منابع طبیعی، گروه مهندسی احیا مناطق خشک و کوهستانی، دانشگاه تهران | ||
| 3دانشیار دانشکده مهندسی منابع طبیعی و محیط زیست، گروه مرتع و آبخیزداری، دانشگاه آزاد اسلامی واحد علوم و تحقیقات (تهران) | ||
| 4بخش تحقیقات حفاظت خاک و آبخیزداری، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان زنجان، سازمان تحقیقات، آموزش و ترویج کشاورزی، زنجان، ایران. | ||
| چکیده | ||
| این تحقیق با هدف ارزیابی میزان آلودگی خاکهای اطراف مراتع قلعه محمدعلیخان شهرستان ری (در فاصله 78 کیلومتری جاده تهران-قم) و همچنین شناسایی گونههای بومی مناسب برای گیاهپالایی در خاکهای آلوده به فلزات سنگین مس و منگنز، در قالب طرح کاملاً تصادفی، در دو جهت موافق و مخالف باد غالب اجرا گردید.از خاک، اندام هوایی و زیرزمینی گیاهان مرتعی از 10 سایت اطراف معدن مس جاده قم – جنوب تهران (5 سایت در جهت باد غالب و 5 سایت در خلاف جهت باد غالب) نمونه‌هایی جمعآوری شد. نمونههای گیاهان در هر سایت از 3 نقطه مرکزی، گوشه بالا و پایین و در داخل پلات یکمترمربعی و نمونههای خاک از داخل همین پلاتها از عمق ریشهدوانی برداشته شدند و غلظت فلزات سنگین (مس و منگنز) توسط دستگاه ICP-OES قرائت گردید. بر طبق نتایج، غلظت فلزات مس و منگنز در مناطق 10 گانه در جهت باد غالب و خلاف جهت باد غالب دارای غلظت‌های متفاوتی بودند. غلظت مس در شاخساره گیاهان (01/2) در هر دو جهت باد بیش‌تر از اندام‌های زیرزمینی (19/1) بود. به عبارتی، فاکتور انتقال در ارتباط با فلز مس بزرگتر از یک بود.این امر نشان می‌دهد که به احتمال زیاد بتوان این گیاهان را به عنوان بیش‌اندوز مس در نظر گرفت. بنابراین، این گیاهان بومی دارای توانایی گیاهپالایی در خاکهای مراتع منطقه بودند. | ||
| کلیدواژه‌ها | ||
| گیاه پالایی؛ فلزات سنگین؛ گیاهان مرتعی؛ آلودگی خاک | ||
| عنوان مقاله [English] | ||
| Investigation of Phytoremediation Ability of Rangeland Species in Soils Contaminated with Copper and Manganese | ||
| نویسندگان [English] | ||
| tahmineh sahihi1؛ mohammad Jafari2؛ seyed akbar Javadi3؛ Mohammad Tahmoures4 | ||
| 1Graduate student of Faculty of Natural Resources and Environmental Engineering, Department of Rangeland and Watershed Management, Islamic Azad University, Science and Research Branch (Tehran). | ||
| 2Department of Reclamation of Arid and Mountainous Regions, Natural Resources Faculty, University of Tehran, Karaj, Iran. | ||
| 3Associate Professor, Faculty of Natural Resources and Environmental Engineering, Department of Rangeland and Watershed Management, Islamic Azad University, Science and Research Branch (Tehran). | ||
| 4Soil Conservation and Watershed Management Department, Zanjan Agricultural and Natural Resources Research Center, AREEO, Zanjan, Iran. | ||
| چکیده [English] | ||
| This study was carried out to evaluate the amount of soil contamination in Qaleh Mohammad-Ali-Khan (Ray city) rangelands and also to identify the phytoremediation ability of native species in soil contaminated with copper (Cu) and manganese (Mn) based on a completely randomized design in the dominant and opposite wind direction. Soil samples, shoot and root samples of rangeland plants were collected from 10 sites around the mine (5 sites in the dominant wind direction and 5 sites in the opposite wind direction). Soil and plant samples were extracted by oxidation method and the copper and manganese concentrations were analyzed by ICP.Concentrations of heavy metals of Cu and Mn in the direction and opposite direction of the dominant wind have different concentrations, so that the plots located near the mine have a higher concentration of heavy metals. Cu concentration in the shoots of plants (2.01) in both direction was greater than that of the roots (1.19) that means the TF value was greater than one (TF>1). Therefore, they can be an appropriate choice for the phytoremediation of Cu-contaminated soils. Thus, these native plants have an implication of carrying out phytoremediation in the rangeland soils. | ||
| کلیدواژه‌ها [English] | ||
| Soil contamination, Heavy metals, Phytoremediation, rangeland species | ||
| مراجع | ||
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