The Organic Component of Particulate Matter in Small Streams of the Northern Yenisei Region During the Summer-Autumn Period
| العنوان: | The Organic Component of Particulate Matter in Small Streams of the Northern Yenisei Region During the Summer-Autumn Period |
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| المؤلفون: | L. S. Lebedeva, Nikita Tananaev |
| المصدر: | Geography and Natural Resources. 39:140-147 |
| بيانات النشر: | Pleiades Publishing Ltd, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Total organic carbon, Hydrology, 010504 meteorology & atmospheric sciences, Soil organic matter, Geography, Planning and Development, Sediment, STREAMS, Management, Monitoring, Policy and Law, Particulates, 010502 geochemistry & geophysics, 01 natural sciences, Dissolved organic carbon, Environmental science, Subsurface flow, Surface runoff, 0105 earth and related environmental sciences, Earth-Surface Processes |
| الوصف: | A quantitative assessment is made of suspended sediment load, including particulate organic matter and organic carbon, in 2014 for the small streams of the Northern Yenisei region, in the taiga–tundra transition zone (near the city of Igarka, Krasnoyarsk krai). It was found that the suspended sediment concentration (SSC) of the streams under investigation fluctuated between 2 and 18 mg/L during the summer–autumn low-water period of 2014. The proportion of dissolved organic matter (DOM) in the total sediment yield varied from 16.4% to 74.1%, depending on landscape-geomorphological conditions for suspended sediment formation: it is higher for streams with tundra catchments and lower on forest watersheds underlain by sandy and clayey loams. The DOM content varies from catchment to catchment from 1.63 to 2.42 mg/L, and the mean concentration of dissolved organic carbon (DOC) is estimated at 0.73 to 1.09 mg C/L. It is shown that the local channel transformations serve as the main source of POM and DOC input to the water of two out of three streams under study. Surface runoff or fast subsurface flow in the organic soil horizon is the external source of DOM input to the water of the third stream during flooding. Regional empirical dependencies were obtained, which correlate the water discharge, total SSC and the proportion of DOM are obtained. The long-term proportion of DOM in the annual suspended sediment flow of the Graviika river makes up 25% and DOC, 11%, or, in absolute values, 406 and 183 t/year, and in units of layer 1.26 and 0.57 t/km2, respectively. |
| تدمد: | 1875-371X 1875-3728 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::983f6ce4011ee20abb6ec1bd44f1b9b8 https://doi.org/10.1134/s1875372818020063 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........983f6ce4011ee20abb6ec1bd44f1b9b8 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 1875371X 18753728 |
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