MINERALIZATION OF WATER AND ORGANIC MATTER OF MOUNTAIN DESERT-SUBTROPICAL RIVERS OF CENTRAL ASIA AND THE CAUCASUS
https://doi.org/10.15356/0373-2444-2017-2-34-46
Abstract
The article analyzes the average multiyear data on the distribution and mode of dissolved organic matter (DOM, aquahumus), alkaline-acidic conditions (pH), mineralization (Σи) of river waters of natural provinces and countries of mountains with desert-subtropical types of vertical zonality in Russia and CIS countries. The study is based on the results of experimental researches and systematic observations the network of Hydrometeorological Service. River waters at the main area of desert-subtropical mountains during the year are alkaline, and they are slightly alkaline in Caucasus regions. The mineralization of water of the rivers of mountains generally varies from 400–420 mg/dm3 in the high water and floods up to 530 mg/dm3 at low water. It varies from 200–500 mg/dm3 in the Caucasus up to 500–1000 mg/dm3 and above in most mountain regions of Central Asia. The average colouration of water of mountain rivers is equal to 9°; for individual regions it varies from 7о to 18о. The values of permanganate oxidation (PO, Operm) and dichromate oxidation (DO, Odich) of river water of the studied mountains are 3 and 7 mg/dm3, varying in natural areas within wide limits. Average annual relation PO/DO is equal to 35%, a DOM/Σи is 2%. Extreme average concentrations of humic acids (HA) in the river waters of the considered mountains are in range from 0–0.015 in the winter low water period
up to 0.010–0.045 mg/dm3 of carbon in the flood, the quantities of fulvic acids (FA) are from 0.170–0.470 to 0.330–0.640 mg/dm3 of carbon; the relationship of CHA/CFA is in range 0–7%. Minor the content dissolved organic matter in the rivers the studied region conditioned of the arid climate, low biomass stocks in fitopatogene, intense transformation and the inertia of organic matter in the landscape.
up to 0.010–0.045 mg/dm3 of carbon in the flood, the quantities of fulvic acids (FA) are from 0.170–0.470 to 0.330–0.640 mg/dm3 of carbon; the relationship of CHA/CFA is in range 0–7%. Minor the content dissolved organic matter in the rivers the studied region conditioned of the arid climate, low biomass stocks in fitopatogene, intense transformation and the inertia of organic matter in the landscape.
References
1. Alekin O.A. Hydrochemistry of rivers of the USSR. The Caucasus and Asian territory. Proc. Russian state hydrological Institute, 1949, vol. 15 (69), 144 p. (In Russ.).
2. Artemyev V.E. Geokhimiya organicheskogo veshchestva v sisteme reka – more (Geochemistry of organic matter in the system river – sea). Moscow: Nauka, 1993. 204 p.
3. Gejgrafiya i okruzhayushchaya sreda (Geography and the environment). V.N. Dmitrieva, N.S. Kasimov, S.M. Malkhazova,Eds. St. Petersburg: Nauka Publ., 2003. 684 p.
4. Kasimov N.S. Geokhimiya stepnykh I pustynnykh landshaftov (Geochemistry of steppe and desert landscapes). Moscow: Izd-vo MGU Publ., 1988. 254 p.
5. Kononova M.M. Organicheskoe veshchesnvo pochvy, ego priroda, svoistva i metody izucheniya (Soil organic matter, its nature, properties, and methods of study). Moscow: Izd-vo AN SSSR Publ., 1963. 314 p.
6. Koronkevich N.I. Preobrazovanie vodnogo balansa (The transformation of water balance). Moscow: Nauka Publ., 1973. 119 p.
7. Liverovskiy Y.A. Pochvy SSSR (Soils of the USSR). Moscow: Mysl’ Publ., 1974. 463 p.
8. Lobova E.V. Pochvy pustynnoi zony SSSR (Soils of the desert zone of the USSR). Moscow: Izd-vo AN SSSR Publ., 1960. 364 p.
9. Nikanorov A.M. Nauchnye osnovy monitoring rfxhestva vod (Scientific basis of water quality monitoring). St. Petersburg: Gidrometeoizdat Publ., 2005. 576 p.
10. Rodin L.E., Bazilevich N.I. Dinamika organicheskogo veshchestva i biologicheskii krugovorot zol’nykh elementov i azota v osnovnykh tipakh rastitel’nosti zemnogo shara (Dynamics of organic matter and biological turnover of ash elements and nitrogen in main types of vegetation of the Earth). Moscow-Leningrad: Nauka Publ., 1965. 254 p.
11. Skopintsev B.A. Organic matter in natural waters (aquatic humus), Proc. SOI, 1950, vol. 17 (29). 290 p. (In Russ.).
12. Smirnov M.P. Runoff of organic matter and nutrients with river waters into the Aral Sea, in Monitoring prirodnoi sredy v basseine Aral’skogo morya (Environmental Monitoring in the Aral Sea basin). St. Petersburg: Gidrometeoizdat Publ., 1991. pp. 67–80. (In Russ.).
13. Smirnov P.M. Hydrochemistry of riversin mountains with tundra and Arctic types of vertical belts of Russia. Izv. Ross. Acad. Nauk, Ser. Geogr., 2008, no. 2, pp. 59–67. (In Russ.).
14. Smirnov M.P. Dissolved organic matter and mineralization of river waters in the mountains with the tundra-taiga types of vertical zones of Russia). Izv. Ross. Acad. Nauk. Ser. Geogr., 2015, no. 5. pp. 54–68. (In Russ.).
15. Smirnov M.P. Organicheskie veshchestva i mineralizatsiya rechnykh vod Rossii, SNG, Baltii (Organic matter and mineralization of river waters in Russia, CIS and Baltic countries). Rostov-on-Don: NOK Publ., 2015. 360 p.
16. Fiziko-geograficheskii atlas mira (Physical-geographic Atlas of the world). Moscow: Izd-vo AN SSSR and GUGK Publ., 1964. 298 p.
17. Shvets V.M. Organicheskie veshchestva podzemnykh vod (Organic matter of groundwaters). Moscow: Nedra Publ., 1973. 191 p.
18. Shil’krot G.S. Mechanisms that control the chemical composition of river and lake waters, Izv. Ross. Acad. Nauk. Ser. geogr., 1998, no. 4, pp. 42–59. (In Russ.).
Review
For citations:
Smirnov M.P. MINERALIZATION OF WATER AND ORGANIC MATTER OF MOUNTAIN DESERT-SUBTROPICAL RIVERS OF CENTRAL ASIA AND THE CAUCASUS. Izvestiya Rossiiskoi Akademii Nauk. Seriya Geograficheskaya. 2017;(2):34-46. (In Russ.) https://doi.org/10.15356/0373-2444-2017-2-34-46
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