کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8851821 1618771 2018 28 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Impact of sugarcane bagasse-derived biochar on heavy metal availability and microbial activity: A field study
ترجمه فارسی عنوان
تاثیر بذر زیتون باقیمانده نیشکر نان در دسترس بودن فلزات سنگین و فعالیت میکروبی: یک مطالعه میدانی
کلمات کلیدی
قابلیت دسترسی بیولوژیک، فعالیت آنزیم، عناصر بالقوه سمی، آلودگی خاک، اصلاح خاک،
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
چکیده انگلیسی
In the current study, we conducted a field experiment using the test plant, Brassica chinesis L. (pak choi), to investigate the effect of sugarcane bagasse-derived biochar on the bioavailability of cadmium (Cd), copper (Cu) and lead (Pb), and the health of soil microbiota in a contaminated soil. Biochar application significantly (P < 0.05) increased pak choi yield. Bioavailability of heavy metals to plant shoots and roots decreased with increasing biochar application rates (at 0, 1.5, 2.25 and 3.0 t ha−1). Sequential extraction of the biochar-treated and -untreated soil revealed that exchangeable Cd reduced whereas organically-bound fraction increased with increasing biochar rate. The labile fractions of Cu and Pb decreased, but the residual fraction increased in biochar-treated soils compared to the control. Urease, catalase and invertase activities, and the populations of bacteria and actinomycetes were significantly enhanced, whereas fungi population declined in biochar-treated soils. This study highlights that sugarcane bagasse biochar has the potential to support the remediation of soils contaminated with heavy metals, and as such can improve the yield and quality of agricultural crops.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 200, June 2018, Pages 274-282
نویسندگان
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