کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4403187 1307126 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The Effects of Mercury and Lead on Microbial Biomass of Paddy Soil From Southwest of China
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست بوم شناسی
پیش نمایش صفحه اول مقاله
The Effects of Mercury and Lead on Microbial Biomass of Paddy Soil From Southwest of China
چکیده انگلیسی

The effects of heavy metals of mercury and lead on microbial biomass carbon and microbial biomass nitrogen in soil were studied. The results indicate that mercury and lead all show their toxic effects on microbial biomass carbon and microbial biomass nitrogen, while the toxicity of mercury, is much larger than that of lead. As to Mercury, the critical content which resulted in significant reduction of microbial biomass carbon is 0.6 mg/kg soil, for microbial biomass nitrogen the content is 0.8 mg/kg
• soil. As to lead, the critical content is 150 mg/kg
• soil for microbial biomass carbon, and 100 mg/kg soil for microbial biomass nitrogen. For microbial biomass nitrogen, when the contents of mercury and lead were respectively between 0.6-1.2 mg/kg
• soil and 150- 200 mg/kg
• soil, the toxic effects had a sudden increasing, which is a worthwhile phenomenon to study in future.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Procedia Environmental Sciences - Volume 12, Part A, 2012, Pages 468-473