کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5757621 | 1622720 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Inhibition effect of zinc in wastewater on the N2O emission from coastal loam soils
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
اقیانوس شناسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The effects of zinc (Zn) on nitrous oxide (N2O) fluxes from coastal loam soil and the abundances of soil nitrifier and denitrifier were studied in a tidal microcosm receiving livestock wastewater with different Zn levels. Soil N2O emission significantly increased due to discharge of wastewater rich in ammonia (NH4+-N) while the continuous measurements of gas flux showed a durative reduction in N2O flux by high Zn input (40 mg Lâ 1) during the low tide period. Soil inorganic nitrogen concentrations increased at the end of the experiment and even more soil NH4+-N was measured in the high-Zn-level treatment, indicating an inhibition of ammonia oxidation by Zn input. Quantitative PCR of soil amoA, narG and nirK genes encoding ammonia monooxygenase, nitrate reductase and nitrite reductase, respectively, showed that the microbial abundances involved in these metabolisms were neither affected by wastewater discharge nor Zn contamination.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 116, Issues 1â2, 15 March 2017, Pages 434-439
Journal: Marine Pollution Bulletin - Volume 116, Issues 1â2, 15 March 2017, Pages 434-439
نویسندگان
Yan Huang, Danyun Ou, Shunyang Chen, Bin Chen, Wenhua Liu, Renao Bai, Guangcheng Chen,