Dissolved Organic Matters and Mineralization of River Water of Mountains with Tundra-Taiga Types of Vertical Zoning in Russia

Space-time characteristics of dissolved organic matters (DOM), alkaline-acidic conditions (pH) and mineralization (∑m) of river waters of natural provinces and countries of mountains with tundra-taiga types of vertical zoning of Russia are analyzed. The study is based on the results of long-term exp...

Full description

Bibliographic Details
Published in:Izvestiya Rossiiskoi Akademii Nauk. Seriya Geograficheskaya.
Main Authors: M. P. Smirnov, M. П. Смирнов
Format: Article in Journal/Newspaper
Language:Russian
Published: Izvestiya Rossiiskoi Akademii Nauk. Seriya Geograficheskaya 2015
Subjects:
Online Access:https://izvestia.igras.ru/jour/article/view/340
https://doi.org/10.15356/0373-2444-2015-5-54-68
Description
Summary:Space-time characteristics of dissolved organic matters (DOM), alkaline-acidic conditions (pH) and mineralization (∑m) of river waters of natural provinces and countries of mountains with tundra-taiga types of vertical zoning of Russia are analyzed. The study is based on the results of long-term experimental hydrochemical researches and observations on the network of Hydrometeorological Service. The reaction of river water of studied mountains is neutral (pH is from 6.5 to 7.0). Water mineralization in the main area is extremely small (less than 100 mg/dm3 ), in some natural countries and provinces increases to small. The river water of mountains with the West Siberian and East Siberian tundra-taiga zoning types is quite similar by average annual chrominance, by the content of dissolved organic matters and easily oxidable fractions, while these parameters for the river water of the pacific types mountains are at 1.5 times lower. Extreme average concentrations of humic and fulvic acids in the water of the rivers of these mountains are maximal in the mountain territory of the country. В статье анализируются пространственно-временные характеристики растворенных органических веществ (РОВ), щелочно-кислотные условия (рН) и минерализация (∑и) речных вод природных провинций и стран гор с тундрово-таежными типами вертикальной поясности России. Работа основана на результатах многолетних экспериментальных гидрохимических исследований и наблюдений на сети Гидрометслужбы. Реакция речных вод данных гор нейтральная (рН 6.5–7.0). Минерализация вод на основной территории очень малая – менее 100 мг/дм3 , в некоторых природных странах и провинциях возрастает до малой. Среднегодовые значения цветности (34–35о ), Оперм и Обихр (9 и 19–24 мг/дм3 ), содержание РОВ и легкоокисляемых фракций (19 и 8–10 мг/дм3 ), отно- шения РОВ/∑и (26–33%) в речных водах гор с западными и восточно-сибирскими тундрово-таежными типами поясности довольно сходны, а в водах гор с притихоокеанскими типами в 1.5 раза ниже. Экстремальные средние концентрации ...