کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8850252 | 1618760 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of organic management on As bioavailability: Soil quality and tomato As uptake
ترجمه فارسی عنوان
تأثیر مدیریت ارگانیک به عنوان قابلیت زیستی: کیفیت خاک و گوجه فرنگی به عنوان جذب
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کلمات کلیدی
جذب آرسنیک، تحرک آرسنیک، مدیریت ارگانیک، جامعه میکروبی، خطر انسانی،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
چکیده انگلیسی
The research studied the effects of organic vs. conventional management of soil quality and tomato yield quality, cultivated in a geogenic arsenic contaminated soil. The chemical and biochemical properties were analyzed to evaluate soil quality, arsenic mobility and its phyto-availability, as well as arsenic accumulation in the tomato plant tissues and if tomatoes cultivated in arsenic rich soil represents a risk for human health. A general improvement of tomato growth and soil quality was observed in the organic management, where soil organic carbon increased from 1.24 to 1.48% and total nitrogen content. The arsenic content of the soil in the organic management increased from 57.0 to 65.3â¯mgâ¯kgâ1, probably due to a greater content of organic matter which permitted the soil to retain the arsenic naturally present in irrigation water. An increase of bioavailable arsenic was observed in the conventional management compared to the organic one (7.05 vs 6.18â¯mgâ¯kgâ1). The bioavailable form of metalloid may affect soil microbial community structure assessed using El-FAME analysis. The increase of the total arsenic concentration in the organic management did not represent a stress factor for soil microbial biomass carbon (Cmic), which was higher in the organic management than in the conventional one (267 vs. 132â¯Î¼g Cmic gâ1). Even if the organic management caused an increase of total arsenic concentration in the soil due to the enhanced organic matter content, retaining arsenic from irrigation water, this management mitigates the arsenic uptake by tomato plants reducing the mobility of the metalloid.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 211, November 2018, Pages 352-359
Journal: Chemosphere - Volume 211, November 2018, Pages 352-359
نویسندگان
Silvia Rita Stazi, Roberto Mancinelli, Rosita Marabottini, Enrica Allevato, Emanuele Radicetti, Enio Campiglia, Sara Marinari,