پتانسیل گیاه Astraglus gossypinus در گیاه پالایی آلومینیوم در خاک¬های معدنی بیدوئیه
الموضوعات :حسن سالاری 1 , مهدی هنرمند 2 , حسین مظفری 3 , حکیمه علومی 4
1 - گروه اکولوژی، پژوهشگاه علوم و تکنولوژی پیشرفته و علوم محیطی، دانشگاه تحصیلات تکمیلی صنعتی و فناوری پیشرفته، کرمان، ایران
2 - گروه اکولوژی، پژوهشکده علوم محیطی،دانشگاه تحصیلات تکمیلی و صنعتی فناوری پیشرفته کرمان
3 - گروه اکولوژی پژوهشگاه علوم و تکنولوژی پیشرفته و علوم محیطی، دانشگاه تحصیلات تکمیلی صنعتی و فناوری پیشرفته،
4 - گروه اکولوژی پژوهشگاه علوم و تکنولوژی پیشرفته و علوم محیطی، دانشگاه تحصیلات تکمیلی صنعتی و فناوری پیشرفته،
الکلمات المفتاحية: آلومینیوم, گیاه¬پالایی, معدن بیدوئیه,
ملخص المقالة :
با توجه به میزان بالای آلومینیوم خاک در منطق معدنی مس دربیدوئیه استان کرمان و مناطق پایین دست آن، بررسی راهکارهای حذف یا کاهش این عنصر لازم بهنظر میرسد. به منظور ارزیابی پتانسیل و اثرات تجمع آلومینیوم در خاک و به ویژه در گیاهان تجمع کننده، پنج ایستگاه نمونهبرداری تصادفی سیستماتیکی در منطقه معدنی تعیین و در قالب طرح بلوکهای کاملا تصادفی از بافت خاک و گیاه گون منطقه نمونه برداری انجام شد. میزان عناصر آلومینیوم، آهن و مس مزبور در نمونههای خاک و گیاه غالب هر ایستگاه به روش هضم اسیدی با دستگاه ICP – OES سنجش و مورد بررسی قرار گرفت. داده های حاصل از این پژوهش، به صورت طرح بلوکهای کامل تصادفی آنالیز شدند. فاکتورهای انتقال و تجمع زیستی هر یک از عناصر فوق محاسبه گردید. نتایج حاصل از مقایسه میانگینها اختلاف معنیدار عناصر فوق را در گیاه غالب نسبت به خاک منطقه نمونهبرداری نشان داد. همچنین نتایج حکایت از جذب بیشتر آلومینیوم نسبت به آهن و مس موجود در خاک در گیاه غالب دارد. فاکتور تجمع زیستی در همه نمونههای مربوط به آلومینیوم با شاهد، اختلاف معنیدار نشان داد. میزان همبستگی عناصر خاک و گیاه تنها در مورد آلومینیوم به طور قابل ملاحظهای معنیدار بود (763/0). به طور کلی با توجه به رشد مناسب و بیوماس بالای گیاه غالب منطقه گون (Astraglus gossypinus) و میزان آلومینیوم بالا در آنها، میتوان این گیاه را بهعنوان گیاه زیستپالای آلومینیوم پیشنهاد کرد.
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Potential of Soil Aluminum Phytoremediation by Astraglus gossypinus in Mineral Area in Bidouiee
Abstract
Considering the high amount of aluminum in the soil in the copper mining region of Bidouiee, Kerman province and its downstream areas, it is important to identify and introduce plants with the capacity to absorb polluting metals. In this study, in order to evaluate the potential and effects of aluminum accumulation in the soil and especially in the accumulating plants, five systematic random sampling stations were determined in the soil and dominant plant of mining area. The amount of aluminum, iron and copper elements in soil samples and dominant plant of each station was measured and analyzed by acid digestion method with ICP-OES device. Absorption, transport and bioaccumulation factors of each of the above elements were calculated. The results of analysis of variance showed a significant difference of the above elements in dominant plants compared to the soil of the sampling area. Also, the results showed that aluminum was more absorbed than iron and copper in the soil in the dominant plant. The aluminum absorption factor in different sampling stations showed a significant difference, and these results show the effect of other factors on aluminum absorption. The bioaccumulation factor showed a significant difference in the samples related to aluminum and the control. The correlation between soil and plant elements was significantly significant only in the case of aluminum (0.763). In general, due to the proper growth and high biomass of dominant plant of region (Astraglus gossypinus) and the high amount of aluminum, this plant can be suggested as aluminum bioremediation plants.
Keywords: Alluminium, Bidouiee mine, Phytoremediation
