معدن
در نشریات گروه زیست شناسی-
معدن کاری و استخراج منابع معدنی علاوه بر اینکه یک صنعت جهانی است نقش مهمی را نیز در اقتصاد و سرنوشت هر کشوری دارد. با توجه به اینکه عملیات معدن کاری در مناطق دورافتاده و حساس از نظر زیست محیطی و یا کمتر توسعه یافته انجام می گیرد، اما نمی توان از این نکته مهم چشم پوشی نمود که مشکلات فراوانی همچون آلودگی آب های سطحی و آب های زیرزمینی و مرگ ومیر آبزیان را به وجود می آورد. اگر معدن کاری به شیوه ای پایدار مدیریت شود، علاوه بر ایجاد شغل، نوآوری و ترغیب سرمایه گذاری باعث تقویت زیرساخت های حیاتی هر کشوری خواهد شد. در صورت مدیریت ضعیف، معدن کاری منجر به تخریب محیط زیست، جابه جایی جمعیت، نابرابری و افزایش درگیری و سایر چالش ها می شود. معدنکاری سبز نوع مدرنی از الگوی معدن کاری است که هدف اصلی آن استخراج منابع به صورت بهینه و به مقدار کافی ،کاهش اثرات زیست محیطی، ایجاد توازن و بهینه سازی منافع سرمایه گذاری و جامعه بر اساس شاخص هایی توسعه پایدار است که توسط سازمان ملل (SDG) معرفی شده اند. معدن به عنوان یکی از قدیمی ترین فعالیت های انسان می باشد که توسعه اقتصادی، فرهنگی و فنی جوامع و کشورها را در طول تاریخ بر عهده داشته است. هدف از شاخص های معرفی شده سازمان ملل دستیابی به توسعه پایدار در معدن کاری و در نظر گرفتن تمامی ابعاد موثر در زندگی ساکنان اطراف معادن اعم از اقتصادی، اجتماعی و محیط زیستی می باشد. در این تحقیق توصیفی-کتابخانه ای، به بررسی و بحث در مورد تطابق بین فعالیت معدنی و SDGها و ارتباط معدن با محیط پیرامون پرداخته می شود. نخست به تعریف ابعاد توسعه و در نهایت به بررسی شاخص های توسعه پایدار پرداخته می شود.
کلید واژگان: معدن، توسعه پایدار، سازمان ملل، SDGMining and extraction of mineral resources, in addition to being a global industry, it also plays an important role in the economy and destiny of any country. Due to the fact that mining operations are carried out in remote and environmentally sensitive or less developed areas, we cannot ignore the important point that it causes many problems such as surface water and ground water pollution and aquatic mortality. If mining is managed in a sustainable manner, in addition to creating jobs, innovation and encouraging investment, it will strengthen the critical infrastructure of any country. In the case of poor management, mining leads to environmental destruction, population displacement, inequality and increased conflict and other challenges. If mining is managed in a sustainable manner, so creating jobs, innovation and encouraging investment, it will strengthen the critical infrastructure of any country. In case of poor management, mining leads to environmental destruction, population displacement, inequality and increased conflict and other challenges. Green mining is a modern type of mining model whose main goal is to extract resources optimally and in sufficient quantity, reduce environmental impacts, create balance and optimize the benefits of investment and society based on sustainable development indicators introduced by the United Nations (SDG). Mining is one of the oldest human activities that has been responsible for the economic, cultural and technical development of societies and countries throughout history. The goal of the indicators introduced by the United Nations is to achieve sustainable development in mining and to take into account all aspects that are effective in the lives of the residents around the mines, including economic, social and environmental aspects. In this descriptive-library research, the compatibility between mining activity and SDGs and the relationship between mining and the surrounding environment are investigated and discussed. First, the dimensions of development are defined and finally, sustainable development indicators are examined.Mining and extraction of mineral resources, in addition to being a global industry, it also plays an important role in the economy and destiny of any country. Due to the fact that mining operations are carried out in remote and environmentally sensitive or less developed areas, we cannot ignore the important point that it causes many problems such as surface water and ground water pollution and aquatic mortality. If mining is managed in a sustainable manner, in addition to creating jobs, innovation and encouraging investment, it will strengthen the critical infrastructure of any country. In the case of poor management, mining leads to environmental destruction, population displacement, inequality and increased conflict and other challenges. If mining is managed in a sustainable manner, so creating jobs, innovation and encouraging investment, it will strengthen the critical infrastructure of any country. In case of poor management, mining leads to environmental destruction, population displacement, inequality and increased conflict and other challenges. Green mining is a modern type of mining model whose main goal is to extract resources optimally and in sufficient quantity, reduce environmental impacts, create balance and optimize the benefits of investment and society based on sustainable development indicators introduced by the United Nations (SDG). Mining is one of the oldest human activities that has been responsible for the economic, cultural and technical development of societies and countries throughout history. The goal of the indicators introduced by the United Nations is to achieve sustainable development in mining and to take into account all aspects that are effective in the lives of the residents around the mines, including economic, social and environmental aspects. In this descriptive-library research, the compatibility between mining activity and SDGs and the relationship between mining and the surrounding environment are investigated and discussed. First, the dimensions of development are defined and finally, sustainable development indicators are examined.Mining and extraction of mineral resources, in addition to being a global industry, it also plays an important role in the economy and destiny of any country. Due to the fact that mining operations are carried out in remote and environmentally sensitive or less developed areas, we cannot ignore the important point that it causes many problems such as surface water and ground water pollution and aquatic mortality. If mining is managed in a sustainable manner, in addition to creating jobs, innovation and encouraging investment, it will strengthen the critical infrastructure of any country. In the case of poor management, mining leads to environmental destruction, population displacement, inequality and increased conflict and other challenges. If mining is managed in a sustainable manner, so creating jobs, innovation and encouraging investment, it will strengthen the critical infrastructure of any country. In case of poor management, mining leads to environmental destruction, population displacement, inequality and increased conflict and other challenges. Green mining is a modern type of mining model whose main goal is to extract resources optimally and in sufficient quantity, reduce environmental impacts, create balance and optimize the benefits of investment and society based on sustainable development indicators introduced by the United Nations (SDG). Mining is one of the oldest human activities that has been responsible for the economic, cultural and technical development of societies and countries throughout history. The goal of the indicators introduced by the United Nations is to achieve sustainable development in mining and to take into account all aspects that are effective in the lives of the residents around the mines, including economic, social and environmental aspects. In this descriptive-library research, the compatibility between mining activity and SDGs and the relationship between mining and the surrounding environment are investigated and discussed. First, the dimensions of development are defined and finally, sustainable development indicators are examined.Mining and extraction of mineral resources, in addition to being a global industry, it also plays an important role in the economy and destiny of any country. Due to the fact that mining operations are carried out in remote and environmentally sensitive or less developed areas, we cannot ignore the important point that it causes many problems such as surface water and ground water pollution and aquatic mortality. If mining is managed in a sustainable manner, in addition to creating jobs, innovation and encouraging investment, it will strengthen the critical infrastructure of any country. In the case of poor management, mining leads to environmental destruction, population displacement, inequality and increased conflict and other challenges. If mining is managed in a sustainable manner, so creating jobs, innovation and encouraging investment, it will strengthen the critical infrastructure of any country. In case of poor management, mining leads to environmental destruction, population displacement, inequality and increased conflict and other challenges. Green mining is a modern type of mining model whose main goal is to extract resources optimally and in sufficient quantity, reduce environmental impacts, create balance and optimize the benefits of investment and society based on sustainable development indicators introduced by the United Nations (SDG). Mining is one of the oldest human activities that has been responsible for the economic, cultural and technical development of societies and countries throughout history. The goal of the indicators introduced by the United Nations is to achieve sustainable development in mining and to take into account all aspects that are effective in the lives of the residents around the mines, including economic, social and environmental aspects. In this descriptive-library research, the compatibility between mining activity and SDGs and the relationship between mining and the surrounding environment are investigated and discussed. First, the dimensions of development are defined and finally, sustainable development indicators are examined.
Keywords: Mining, sustainable development, United Nations, SDG -
این تحقیق به منظور بررسی اثرات توام و مستقل تنش خشکی و فلز سنگین مس بر روی صفات رویشی (طول ریشه چه، طول ساقه چه، وزن تر و وزن خشک گیاهچه)، درصد اسانس و تجمع مس در ریشه، اندام هوایی و تفاله ی شاتره (Fumaria. Parviflora Lam) در شریط گلخانه انجام شد. در این مطالعه غلظت های مختلف عنصر مس (شاهد، 50، 150، 300 و 400 mg/kg) و سطوح مختلف تنش خشکی (شاهد، 50 % و 75% بر اساس تخلیه درصد رطوبت خاک) بر روی بذور جمع آوری شده از دو منطقه معدنی دراستان کرمان (عسکری و رابر) و در هر منطقه چهار ناحیه (Z1، Z2، Z3 و Z4) به کار رفت. نتایج نشان داد که در همه تیمارها غلظت (mg/kg) 50 مس و بدون تنش خشکی(شاهد) منجر به بیشترین مقدار از نظر صفات رویشی شد. بیشترین درصد اسانس در تیمار با غلظت (mg/kg) 150 مس و تنش متوسط خشکی در ناحیه 3 از معدن مس عسکری و بیشترین میزان غلظت مس در ریشه، اندام هوایی و تفاله ی گیاه در تیمار (mg/kg) 400 مس و تنش شدید خشکی در ناحیه 3 از معدن عسکری مشاهده شد. در مطالعه ی حاضر فلز مس در طی فرایند تقطیر به مقدار زیادی در بافت گیاهی باقی ماند و غلظت عنصر مس در تفاله، تقریبا مشابه غلظت اندام هوایی گیاه قبل از فرایند تقطیر و اسانس گیری بود. بهترین تیمار برای کشت شاتره به لحاظ استفاده از اسانس گیاه، تیمار (mg/kg) 150 مس و تنش متوسط خشکی ارزیابی شد این یافته ها استفاده از گیاه دارویی شاهتره، به عنوان محصول جایگزین برای خاکهایی که به طور ملایم با مس آلوده شده اند را پشتیبانی می کند. همچنین داده های این تحقیق نشان داد که گیاه شاهتره به لحاظ کاستی هایی نظیر رشد کند و کاهش شدید زیست توده در غلظت های بالای مس نمی تواند به عنوان یک گونه کاندید برای گیاه پالایی خاک آلوده به مس باشد.
کلید واژگان: تفاله گیاه، کرمان، گلخانه، گیاه پالایی، معدنThis study was conducted to investigate the combined and independent effects of drought stress and copper on vegetative traits (root length, stem length, fresh and dry weight of seedling), essential oil content and copper accumulation in roots, shoots and distilled plant material of Fumaria parviflora Lam. In this study, different concentrations of copper (control, 50, 150, 300 and 400 mg /kg) and different levels of drought stress (control, 50% and 75% based on soil moisture percentage discharge) on seeds collected from two mineral regions in Kerman province (Askari and Rabar) and in each region four zones (Z1, Z2, Z3 and Z4) were used. The results showed that in all treatments, the concentration of 50 (mg / kg) copper without drought stress (control) led to the highest value in terms of vegetative traits.The highest percentage of essential oil (0.45) in the treatment with concentration 150 (mg / kg) of copper and medium drought stress in zone 3 of Askari copper mine and the highest concentration of copper in roots, shoots and distilled plant material in treatment with 400(mg /kg) copper and severe drought stress in zone 3 of Askari mine were observed. In this study, the Cu remained in the plant tissue during the distillation process and the concentration of copper in the distilled plant material was almost similar to the concentration of plant shoots before the distillation process. The best treatment for f. parviflora cultivation in terms of plant essential oil, 150 (mg / kg) copper and medium drought stress was evaluatedthese findings support the use of F. parviflora as an acceptable species for soils that are in moderation contaminated with copper. behaviors such as slow growth and severe decline in biomass at high concentrations of Cu, it is concluded that the F. parviflora cannot be a candidate species for the phytoremediation of copper contaminated soil.
Keywords: distilled plant material, greenhouse, Kerman, mine, phytoremediation -
معادن و بهره برداری از آنها اثرات متعددی بر محیط زیست دارد. عناصر سنگین از طریق معدنکاوی، فرآوری کانسنگها و سدهای باطله وارد محیط میشوند. فلزات سنگین از طریق خاک جذب گیاهان شده و وارد زنجیره غذایی میگردند.معدن سرب نخلک با قدمت 2000 ساله درشرق نایین واقع شده است. در این پژوهش میزان عناصر سنگین در خاک اطراف معدن سرب نخلک بررسی شده است. تجمع فلزات سنگین در گیاهان بومی منطقه و همچنین زیست دسترس پذیری آنها مشخص شده است.بدین منظور 10 ایستگاه برای نمونه برداری خاک ناحیه معدنی و 10 ایستگاه جهت خاک سد باطله تعیین شد و با استفاده از جذب اتمی میزان فلزات سنگین در آنها بررسی گردید. از آلوده ترین مناطق نمونه برداری گیاهان صورت پذیرفت. زیست دسترس پذیری با استفاده از محلول EDTA شبیه سازی گشت. از میان گیاهان کلیر، خرزهره و خارشتر بیشترین تجمع در کلیر دیده شد. زیست دسترس پذیری کادمیم از تمامی فلزات سنگین بیشتر بوده است.
کلید واژگان: معدن، سرب، گیاهان، تجمع زیستی، فلزات سنگینMining and related activities has a several impact on the environment. Heavy elements enter the environment through mining, ore processing and tailings dams.plants adsorb heavy metals through the soil, and heavy metals entered the foodchain. Nakhlak lead mine is 2000 years old and is located in the east of Nain city. In this study, the amount of heavy metals in the soil around Nakhlak lead mine has been investigated. Accumulation of heavy metals in native plants of the region as well as their bioavailability has been determined. For this purpose, 10 stations were selected for sampling the soil of the mineral zone and 10 stations for the soil of the tailings dam and by using atomic absorption, the amount of heavy metals in them was investigated. Plants were sampled from the most polluted areas. Bioavailability was simulated using EDTA solution. Among the plants of Claire, oleander and sagebrush, the highest accumulation was seen in Claire. Cadmium was more bioavailable than all heavy metals.
Keywords: “mine”, “lead”, “plants”, “bioaccumulation”, “Heavy Metals”
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