کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6304658 | 1306673 | 2016 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Distribution patterns and dynamics of phosphorus forms in the overlying water and sediment of Dongting Lake
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم زمین و سیاره ای (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Distribution patterns and dynamics of phosphorus forms in the overlying water and sediment of Dongting Lake Distribution patterns and dynamics of phosphorus forms in the overlying water and sediment of Dongting Lake](/preview/png/6304658.png)
چکیده انگلیسی
Dongting Lake is a typical shallow lake in the lower Yangtze region and is the second largest freshwater lake in China. The distribution, speciation, and sediment release characteristics of phosphorus (P) were investigated by analyzing sediment and water samples collected during high and low flow periods. The average concentration (range) of total phosphorus (TP) in the water was 0.05 mg Lâ 1 (0.02 ~ 0.09 mg Lâ 1), while the value in sediment was 703 mg kgâ 1 (466 ~ 869 mg kgâ 1). The concentrations of TP and different P forms decreased as depth increased. Inorganic phosphorus was the dominant form of P, accounting for 72% of TP. The bioavailable P was a relatively large portion of TP, indicating a high risk of P release to overlying water. The Langmuir equation can well describe the P isotherm adsorption characteristics in sediment. The amount of P desorption from sediment tended to increase with increasing concentrations of adsorbed P.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Great Lakes Research - Volume 42, Issue 3, June 2016, Pages 565-570
Journal: Journal of Great Lakes Research - Volume 42, Issue 3, June 2016, Pages 565-570
نویسندگان
Lingqing Wang, Tao Liang,