5 research outputs found

    Structural group composition of dissolved organic matter in waters of thermokarst lakes of Bolshezemelskaya tundra

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    The relevance of the research is related to the intensive economic development of the Arctic part of the European North of Russia, which entails a sharp increase in anthropogenic pressure on vulnerable ecosystems of the Far North. At climate warming, melting of permafrost can provoke the formation of new thermokarst lakes and subsidence, which in its turn facilitates the removal of organic matter from peat into natural environments. The main aim is to reveal the features of composition of dissolved organic matter and its possible sources in the waters of thermokarst lakes of the Bolshezemelskaya tundra (near Naryan-Mar), with different water-mirror areas and at different stages of evolution. Methods. Analysis of the dissolved organic matter content in the waters of thermokarst lakes was carried out in the laboratory of georesources and the environment of Toulouse by the method of complete burning of dissolved organic carbon. In the laboratory of physicochemical methods of analysis of the Institute of Petroleum Chemistry of the SB RAS (Tomsk), by a three-step extraction at various pH the chloroformed concentrates were obtained. They contain dissolved organic matter. Organic structures were studied by Infrared spectroscopy. The structural-group composition of dissolved organic matter was determined by gas chromatography-mass spectrometry method.Β Results. Organic compounds in the waters of thermokarst lakes of Bolshezemelskaya tundra are mainly represented by hydrocarbons of aliphatic structure, carboxylic acid esters and aromatic compounds belonging to three homologous series. It was found, that low-molecular n-alkanes predominate in the small acid lake BZ-12, the main sources are bacteria, lower plants (unicellular algae) and phytoplankton. In the more mature and less acidic lake BZ-13, the main contribution belongs to higher terrestrial plants and coast marine algae. Phytoplankton also plays an important role in enriching water with dissolved organic matter. Accordingly, with evolution of the lake ecosy stem during recycling of a layer of peat sediments, the organic matters in waters are changed from the autochthonous to the allochthonnous

    Elemental composition of macrophytes of thermokarst lakes in Western Siberia

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    Relevance. Macrophytes are one of the key participants in accumulation of chemical elements in lake ecosystems, but despite this, the issue of elemental composition of macrophytes of thermokarst lakes in Western Siberia and accumulation of chemical elements relative to the sediments and pore water remains practically unexplored. The aim of the research is to describe the formation of elemental composition of macrophyte species of thermokarst lakes in the north of Western Siberia and to identify the possibility of their use in biomonitoring. The objects of research were macrophyte plants (Hippuris vulgaris L., Glyceria maxima (Hartm.) Holmb., Comarum palustre L., Ranunculus spitzbergensis Hadac, Carex aquatilis Wahlenb s. Str., Menyanthes trifoliata L.), sediments and pore waters of thermokarst lakes of the north of Western Siberia. Methods. The elemental composition of the samples was studied by inductively coupled plasma mass spectrometry (ICP/MS, Agilent Technologies, 7500 se), the concentration of anions in water samples was determined by liquid chromatography (Dionex ICS/2000), the dissolved organic carbon was defined by infrared spectroscopy TOC/VCSN, Shimadzu), the organic carbon content of the sediments was determined by infrared spectrometry (Horiba Jobin Yvon Emia/320V C/S Analyzer). Statistical processing of data was carried out using the STATISTICA 6.0 software package. Results. The coefficients of biological accumulation of chemical elements in macrophytes relative to sediments and pore water were calculated for four key thermokarst lakes. It has been shown that macronutrients (Na, Mg, Ca), some heavy metals and metalloids (Ni, Cu, Zn, Co, As, Cd), as well as B and Mo are actively accumulated in water plants of thermokarst lakes of Western Siberia. High coefficients of accumulation of heavy metals indicate a significant phytoremediation function of macrophytes in a given territory

    Structural group composition of dissolved organic matter in waters of thermokarst lakes of Bolshezemelskaya tundra

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    ΠΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½ΠΎΡΡ‚ΡŒ исслСдования связана с интСнсивным хозяйствСнным освоСниСм арктичСской части ЕвропСйского Π‘Π΅Π²Π΅Ρ€Π° России, ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠ΅ Π²Π»Π΅Ρ‡Π΅Ρ‚ Π·Π° собой Ρ€Π΅Π·ΠΊΠΎΠ΅ ΡƒΠ²Π΅Π»ΠΈΡ‡Π΅Π½ΠΈΠ΅ Π°Π½Ρ‚Ρ€ΠΎΠΏΠΎΠ³Π΅Π½Π½ΠΎΠΉ Π½Π°Π³Ρ€ΡƒΠ·ΠΊΠΈ Π½Π° уязвимыС экосистСмы ΠšΡ€Π°ΠΉΠ½Π΅Π³ΠΎ Π‘Π΅Π²Π΅Ρ€Π°. Π’ условиях потСплСния ΠΊΠ»ΠΈΠΌΠ°Ρ‚Π° таяниС Π²Π΅Ρ‡Π½ΠΎΠΉ ΠΌΠ΅Ρ€Π·Π»ΠΎΡ‚Ρ‹ ΠΌΠΎΠΆΠ΅Ρ‚ ΠΏΡ€ΠΎΠ²ΠΎΡ†ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ ΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ Π½ΠΎΠ²Ρ‹Ρ… тСрмокарстовых ΠΎΠ·Π΅Ρ€ ΠΈ просадок, Ρ‡Ρ‚ΠΎ Π² свою ΠΎΡ‡Π΅Ρ€Π΅Π΄ΡŒ способствуСт Π²Ρ‹Π²ΠΎΠ΄Ρƒ органичСского вСщСства ΠΈΠ· Ρ‚ΠΎΡ€Ρ„Π° Π² повСрхностныС Π²ΠΎΠ΄Ρ‹. ЦСль исслСдования: выявлСниС особСнностСй состава растворСнного органичСского вСщСства ΠΈ Π΅Π³ΠΎ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½Ρ‹Ρ… источников Π² Π²ΠΎΠ΄Π°Ρ… тСрмокарстовых ΠΎΠ·Π΅Ρ€, располоТСнных Π½Π° ΠΎΠ΄Π½ΠΎΠΌ ΠΈΠ· ΠΊΠ»ΡŽΡ‡Π΅Π²Ρ‹Ρ… участков исслСдований Π‘ΠΎΠ»ΡŒΡˆΠ΅Π·Π΅ΠΌΠ΅Π»ΡŒΡΠΊΠΎΠΉ Ρ‚ΡƒΠ½Π΄Ρ€Ρ‹ (Π²Π±Π»ΠΈΠ·ΠΈ Π³. ΠΠ°Ρ€ΡŒΡΠ½-ΠœΠ°Ρ€), ΠΈΠΌΠ΅ΡŽΡ‰ΠΈΡ… Ρ€Π°Π·Π½Ρ‹Π΅ ΠΏΠ»ΠΎΡ‰Π°Π΄ΠΈ Π²ΠΎΠ΄Π½ΠΎΠ³ΠΎ Π·Π΅Ρ€ΠΊΠ°Π»Π° ΠΈ находящихся Π½Π° Ρ€Π°Π·Π½Ρ‹Ρ… этапах развития. ΠœΠ΅Ρ‚ΠΎΠ΄Ρ‹. Анализ содСрТания растворСнного органичСского ΡƒΠ³Π»Π΅Ρ€ΠΎΠ΄Π° Π² Π²ΠΎΠ΄Π°Ρ… тСрмокарстовых ΠΎΠ·Π΅Ρ€ Π±Ρ‹Π» Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ Π² Π»Π°Π±ΠΎΡ€Π°Ρ‚ΠΎΡ€ΠΈΠΈ гСорСсурсов ΠΈ ΠΎΠΊΡ€ΡƒΠΆΠ°ΡŽΡ‰Π΅ΠΉ срСды Π³. Π’ΡƒΠ»ΡƒΠ·Ρ‹ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ ΠΏΠΎΠ»Π½ΠΎΠ³ΠΎ сТигания растворСнного органичСского ΡƒΠ³Π»Π΅Ρ€ΠΎΠ΄Π°. Π’ Π»Π°Π±ΠΎΡ€Π°Ρ‚ΠΎΡ€ΠΈΠΈ Ρ„ΠΈΠ·ΠΈΠΊΠΎ-химичСских ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ² исслСдования Π˜Π½ΡΡ‚ΠΈΡ‚ΡƒΡ‚Π° Ρ…ΠΈΠΌΠΈΠΈ Π½Π΅Ρ„Ρ‚ΠΈ БО РАН (Π³. Вомск) ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ трСхступСнчатой экстракции ΠΏΡ€ΠΈ Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Ρ… рН Π±Ρ‹Π»ΠΈ ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Ρ‹ Ρ…Π»ΠΎΡ€ΠΎΡ„ΠΎΡ€ΠΌΠ½Ρ‹Π΅ ΠΊΠΎΠ½Ρ†Π΅Π½Ρ‚Ρ€Π°Ρ‚Ρ‹, содСрТащиС растворСнныС органичСскиС вСщСства. ΠšΠΎΠ½Ρ†Π΅Π½Ρ‚Ρ€Π°Ρ‚Ρ‹ ΠΈΠ·ΡƒΡ‡Π°Π»ΠΈΡΡŒ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ инфракрасной спСктроскопии для установлСния условного содСрТания структур органичСских вСщСств. ΠœΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ Ρ…Ρ€ΠΎΠΌΠ°Ρ‚ΠΎ-масс-спСктромСтрии Π±Ρ‹Π» ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ структурно-Π³Ρ€ΡƒΠΏΠΏΠΎΠ²ΠΎΠΉ состав растворСнных органичСских вСщСств. Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹. ΠžΡ€Π³Π°Π½ΠΈΡ‡Π΅ΡΠΊΠΈΠ΅ соСдинСния Π² Π²ΠΎΠ΄Π°Ρ… тСрмокарстовых ΠΎΠ·Π΅Ρ€ Π‘ΠΎΠ»ΡŒΡˆΠ΅Π·Π΅ΠΌΠ΅Π»ΡŒΡΠΊΠΎΠΉ Ρ‚ΡƒΠ½Π΄Ρ€Ρ‹ прСдставлСны Π² основном ΡƒΠ³Π»Π΅Π²ΠΎΠ΄ΠΎΡ€ΠΎΠ΄Π°ΠΌΠΈ алифатичСского строСния, слоТными эфирами ΠΊΠ°Ρ€Π±ΠΎΠ½ΠΎΠ²Ρ‹Ρ… кислот ΠΈ ароматичСскими соСдинСниями, ΠΏΡ€ΠΈΠ½Π°Π΄Π»Π΅ΠΆΠ°Ρ‰ΠΈΠΌΠΈ Ρ‚Ρ€Π΅ΠΌ гомологичСским рядам. УстановлСно, Ρ‡Ρ‚ΠΎ Π² ΠΌΠ°Π»ΠΎΠΌ кислом ΠΎΠ·Π΅Ρ€Π΅ BZ-12 ΠΏΡ€Π΅ΠΎΠ±Π»Π°Π΄Π°ΡŽΡ‚ низкомолСкулярныС Π½-Π°Π»ΠΊΠ°Π½Ρ‹, основными источниками ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Ρ… ΡΠ²Π»ΡΡŽΡ‚ΡΡ низшиС растСния (ΠΎΠ΄Π½ΠΎΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½Ρ‹Π΅ водоросли) ΠΈ Ρ„ΠΈΡ‚ΠΎΠΏΠ»Π°Π½ΠΊΡ‚ΠΎΠ½. Π’ Π±ΠΎΠ»Π΅Π΅ Π·Ρ€Π΅Π»ΠΎΠΌ ΠΈ ΠΌΠ΅Π½Π΅Π΅ кислом ΠΎΠ·Π΅Ρ€Π΅ BZ-13 Π½-Π°Π»ΠΊΠ°Π½Ρ‹ прСдставлСны Π΄Π»ΠΈΠ½Π½Ρ‹ΠΌΠΈ молСкулярными цСпями, Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€Π½Ρ‹ΠΌΠΈ для Π²Ρ‹ΡΡˆΠΈΡ… Π½Π°Π·Π΅ΠΌΠ½Ρ‹Ρ… растСний ΠΈ ΠΏΡ€ΠΈΠ±Ρ€Π΅ΠΆΠ½ΠΎ-морских водорослСй. УстановлСно, Ρ‡Ρ‚ΠΎ с Ρ€Π°Π·Π²ΠΈΡ‚ΠΈΠ΅ΠΌ экосистСмы ΠΎΠ·Π΅Ρ€Π° ΠΏΡ€ΠΈ ΠΏΠ΅Ρ€Π΅Ρ€Π°Π±ΠΎΡ‚ΠΊΠ΅ слоя торфяных осадков Π² Π²ΠΎΠ΄Π°Ρ… ΠΎΠ·Π΅Ρ€ происходит смСна органичСского вСщСства с Π°Π²Ρ‚ΠΎΡ…Ρ‚ΠΎΠ½Π½ΠΎΠ³ΠΎ Π½Π° Π°Π»Π»ΠΎΡ…Ρ‚ΠΎΠ½Π½ΠΎΠ΅.The relevance of the research is related to the intensive economic development of the Arctic part of the European North of Russia, which entails a sharp increase in anthropogenic pressure on vulnerable ecosystems of the Far North. At climate warming, melting of permafrost can provoke the formation of new thermokarst lakes and subsidence, which in its turn facilitates the removal of organic matter from peat into natural environments. The main aim is to reveal the features of composition of dissolved organic matter and its possible sources in the waters of thermokarst lakes of the Bolshezemelskaya tundra (near Naryan-Mar), with different water-mirror areas and at different stages of evolution. Methods. Analysis of the dissolved organic matter content in the waters of thermokarst lakes was carried out in the laboratory of georesources and the environment of Toulouse by the method of complete burning of dissolved organic carbon. In the laboratory of physicochemical methods of analysis of the Institute of Petroleum Chemistry of the SB RAS (Tomsk), by a three-step extraction at various pH the chloroformed concentrates were obtained. They contain dissolved organic matter. Organic structures were studied by Infrared spectroscopy. The structural-group composition of dissolved organic matter was determined by gas chromatography-mass spectrometry method. Results. Organic compounds in the waters of thermokarst lakes of Bolshezemelskaya tundra are mainly represented by hydrocarbons of aliphatic structure, carboxylic acid esters and aromatic compounds belonging to three homologous series. It was found, that low-molecular n-alkanes predominate in the small acid lake BZ-12, the main sources are bacteria, lower plants (unicellular algae) and phytoplankton. In the more mature and less acidic lake BZ-13, the main contribution belongs to higher terrestrial plants and coast marine algae. Phytoplankton also plays an important role in enriching water with dissolved organic matter. Accordingly, with evolution of the lake ecosy stem during recycling of a layer of peat sediments, the organic matters in waters are changed from the autochthonous to the allochthonnous

    Elemental composition of macrophytes of thermokarst lakes in Western Siberia

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    ΠΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½ΠΎΡΡ‚ΡŒ. РастСния-ΠΌΠ°ΠΊΡ€ΠΎΡ„ΠΈΡ‚Ρ‹ ΡΠ²Π»ΡΡŽΡ‚ΡΡ ΠΎΠ΄Π½ΠΈΠΌ ΠΈΠ· ΠΊΠ»ΡŽΡ‡Π΅Π²Ρ‹Ρ… звСньСв накоплСния химичСских элСмСнтов Π² ΠΎΠ·Π΅Ρ€Π½Ρ‹Ρ… экосистСмах, нСсмотря Π½Π° это Π² настоящСС врСмя остаСтся практичСски Π½Π΅ ΠΈΠ·ΡƒΡ‡Π΅Π½Π½Ρ‹ΠΌ вопрос элСмСнтного состава ΠΌΠ°ΠΊΡ€ΠΎΡ„ΠΈΡ‚ΠΎΠ² тСрмокарстовых ΠΎΠ·Π΅Ρ€ Π—Π°ΠΏΠ°Π΄Π½ΠΎΠΉ Π‘ΠΈΠ±ΠΈΡ€ΠΈ ΠΈ аккумуляции ΠΈΠΌΠΈ химичСских элСмСнтов ΠΎΡ‚Π½ΠΎΡΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎ Π΄ΠΎΠ½Π½Ρ‹Ρ… ΠΎΡ‚Π»ΠΎΠΆΠ΅Π½ΠΈΠΉ ΠΈ ΠΏΠΎΡ€ΠΎΠ²ΠΎΠΉ Π²ΠΎΠ΄Ρ‹. ЦСль: описаниС формирования элСмСнтного состава Π²ΠΈΠ΄ΠΎΠ² ΠΌΠ°ΠΊΡ€ΠΎΡ„ΠΈΡ‚ΠΎΠ² тСрмокарстовых ΠΎΠ·Π΅Ρ€ сСвСра Π—Π°ΠΏΠ°Π΄Π½ΠΎΠΉ Π‘ΠΈΠ±ΠΈΡ€ΠΈ ΠΈ выявлСниС возмоТности ΠΈΡ… использования Π² Π±ΠΈΠΎΠΌΠΎΠ½ΠΈΡ‚ΠΎΡ€ΠΈΠ½Π³Π΅. ΠžΠ±ΡŠΠ΅ΠΊΡ‚Π°ΠΌΠΈ исслСдования слуТили растСния-ΠΌΠ°ΠΊΡ€ΠΎΡ„ΠΈΡ‚Ρ‹ (Hippuris vulgaris L., Glyceria maxima (Hartm.) Holmb., Comarum palustre L., Ranunculus spitzbergensis Hadac, Carex aquatilis Wahlenb s. str., Menyanthes trifoliata L.), Π΄ΠΎΠ½Π½Ρ‹Π΅ отлоТСния, ΠΏΠΎΡ€ΠΎΠ²Ρ‹Π΅ Π²ΠΎΠ΄Ρ‹ Π΄ΠΎΠ½Π½Ρ‹Ρ… ΠΎΡ‚Π»ΠΎΠΆΠ΅Π½ΠΈΠΉ тСрмокарстовых ΠΎΠ·Π΅Ρ€ сСвСра Π—Π°ΠΏΠ°Π΄Π½ΠΎΠΉ Π‘ΠΈΠ±ΠΈΡ€ΠΈ. ΠœΠ΅Ρ‚ΠΎΠ΄Ρ‹. ИсслСдованиС элСмСнтного состава ΠΎΠ±Ρ€Π°Π·Ρ†ΠΎΠ² ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΎΡΡŒ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ масс-спСктромСтрии с ΠΈΠ½Π΄ΡƒΠΊΡ‚ΠΈΠ²Π½ΠΎ связанной ΠΏΠ»Π°Π·ΠΌΠΎΠΉ (ИБП/МБ, Agilent Technologies, 7500 сС), ΠΊΠΎΠ½Ρ†Π΅Π½Ρ‚Ρ€Π°Ρ†ΠΈΠΈ Π°Π½ΠΈΠΎΠ½ΠΎΠ² Π² ΠΎΠ±Ρ€Π°Π·Ρ†Π°Ρ… Π²ΠΎΠ΄Ρ‹ ΠΎΠΏΡ€Π΅Π΄Π΅Π»ΡΠ»ΠΈΡΡŒ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ Тидкостной Ρ…Ρ€ΠΎΠΌΠ°Ρ‚ΠΎΠ³Ρ€Π°Ρ„ΠΈΠΈ (Dionex ICS/2000), ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ растворСнного органичСского ΡƒΠ³Π»Π΅Ρ€ΠΎΠ΄Π° ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΎΡΡŒ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ инфракрасной спСктроскопии (TOC/VCSN, Shimadzu), содСрТаниС органичСского ΡƒΠ³Π»Π΅Ρ€ΠΎΠ΄Π° Π΄ΠΎΠ½Π½Ρ‹Ρ… ΠΎΡ‚Π»ΠΎΠΆΠ΅Π½ΠΈΠΉ ΠΎΠΏΡ€Π΅Π΄Π΅Π»ΡΠ»ΠΎΡΡŒ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ инфракрасной спСктромСтрии (Horiba Jobin Yvon Emia/320V C/S Analyzer). БтатистичСская ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΠ° Π΄Π°Π½Π½Ρ‹Ρ… ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΈΠ»Π°ΡΡŒ с использованиСм ΠΏΠ°ΠΊΠ΅Ρ‚Π° ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌ STATISTICA 6.0.Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹. ΠšΠΎΡΡ„Ρ„ΠΈΡ†ΠΈΠ΅Π½Ρ‚Ρ‹ биологичСского накоплСния химичСских элСмСнтов Π² ΠΌΠ°ΠΊΡ€ΠΎΡ„ΠΈΡ‚Π°Ρ… ΠΎΡ‚Π½ΠΎΡΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎ Π΄ΠΎΠ½Π½Ρ‹Ρ… ΠΎΡ‚Π»ΠΎΠΆΠ΅Π½ΠΈΠΉ ΠΈ ΠΏΠΎΡ€ΠΎΠ²ΠΎΠΉ Π²ΠΎΠ΄Ρ‹ Π±Ρ‹Π»ΠΈ рассчитаны для Ρ‡Π΅Ρ‚Ρ‹Ρ€Π΅Ρ… ΠΊΠ»ΡŽΡ‡Π΅Π²Ρ‹Ρ… тСрмокарстовых ΠΎΠ·Π΅Ρ€. Π‘Ρ‹Π»ΠΎ ΠΏΠΎΠΊΠ°Π·Π°Π½ΠΎ, Ρ‡Ρ‚ΠΎ Π²ΠΎΠ΄Π½Ρ‹ΠΌΠΈ растСниями тСрмокарстовых ΠΎΠ·Π΅Ρ€ Π—Π°ΠΏΠ°Π΄Π½ΠΎΠΉ Π‘ΠΈΠ±ΠΈΡ€ΠΈ Π°ΠΊΡ‚ΠΈΠ²Π½ΠΎ Π½Π°ΠΊΠ°ΠΏΠ»ΠΈΠ²Π°ΡŽΡ‚ΡΡ макроэлСмСнты (Na, Mg, Ca), Π½Π΅ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ тяТСлыС ΠΌΠ΅Ρ‚Π°Π»Π»Ρ‹ ΠΈ ΠΌΠ΅Ρ‚Π°Π»Π»ΠΎΠΈΠ΄Ρ‹ (Ni, Cu, Zn, Co, As, Cd), Π° Ρ‚Π°ΠΊΠΆΠ΅ B ΠΈ Mo. ВысокиС коэффициСнты накоплСния тяТСлых ΠΌΠ΅Ρ‚Π°Π»Π»ΠΎΠ² ΠΌΠΎΠ³ΡƒΡ‚ Π³ΠΎΠ²ΠΎΡ€ΠΈΡ‚ΡŒ ΠΎ сущСствСнной Ρ„ΠΈΡ‚ΠΎΡ€Π΅ΠΌΠ΅Π΄ΠΈΠ°Ρ†ΠΈΠΎΠ½Π½ΠΎΠΉ Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΈ растСний-ΠΌΠ°ΠΊΡ€ΠΎΡ„ΠΈΡ‚ΠΎΠ² Π΄Π°Π½Π½ΠΎΠΉ Ρ‚Π΅Ρ€Ρ€ΠΈΡ‚ΠΎΡ€ΠΈΠΈ.Relevance. Macrophytes are one of the key participants in accumulation of chemical elements in lake ecosystems, but despite this, the issue of elemental composition of macrophytes of thermokarst lakes in Western Siberia and accumulation of chemical elements relative to the sediments and pore water remains practically unexplored. The aim of the research is to describe the formation of elemental composition of macrophyte species of thermokarst lakes in the north of Western Siberia and to identify the possibility of their use in biomonitoring. The objects of research were macrophyte plants (Hippuris vulgaris L., Glyceria maxima (Hartm.) Holmb., Comarum palustre L., Ranunculus spitzbergensis Hadac, Carex aquatilis Wahlenb s. Str., Menyanthes trifoliata L.), sediments and pore waters of thermokarst lakes of the north of Western Siberia. Methods. The elemental composition of the samples was studied by inductively coupled plasma mass spectrometry (ICP/MS, Agilent Technologies, 7500 se), the concentration of anions in water samples was determined by liquid chromatography (Dionex ICS/2000), the dissolved organic carbon was defined by infrared spectroscopy TOC/VCSN, Shimadzu), the organic carbon content of the sediments was determined by infrared spectrometry (Horiba Jobin Yvon Emia/320V C/S Analyzer). Statistical processing of data was carried out using the STATISTICA 6.0 software package. Results. The coefficients of biological accumulation of chemical elements in macrophytes relative to sediments and pore water were calculated for four key thermokarst lakes. It has been shown that macronutrients (Na, Mg, Ca), some heavy metals and metalloids (Ni, Cu, Zn, Co, As, Cd), as well as B and Mo are actively accumulated in water plants of thermokarst lakes of Western Siberia. High coefficients of accumulation of heavy metals indicate a significant phytoremediation function of macrophytes in a given territory

    Elemental composition of macrophytes of thermokarst lakes in Western Siberia

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    ΠΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½ΠΎΡΡ‚ΡŒ. РастСния-ΠΌΠ°ΠΊΡ€ΠΎΡ„ΠΈΡ‚Ρ‹ ΡΠ²Π»ΡΡŽΡ‚ΡΡ ΠΎΠ΄Π½ΠΈΠΌ ΠΈΠ· ΠΊΠ»ΡŽΡ‡Π΅Π²Ρ‹Ρ… звСньСв накоплСния химичСских элСмСнтов Π² ΠΎΠ·Π΅Ρ€Π½Ρ‹Ρ… экосистСмах, нСсмотря Π½Π° это Π² настоящСС врСмя остаСтся практичСски Π½Π΅ ΠΈΠ·ΡƒΡ‡Π΅Π½Π½Ρ‹ΠΌ вопрос элСмСнтного состава ΠΌΠ°ΠΊΡ€ΠΎΡ„ΠΈΡ‚ΠΎΠ² тСрмокарстовых ΠΎΠ·Π΅Ρ€ Π—Π°ΠΏΠ°Π΄Π½ΠΎΠΉ Π‘ΠΈΠ±ΠΈΡ€ΠΈ ΠΈ аккумуляции ΠΈΠΌΠΈ химичСских элСмСнтов ΠΎΡ‚Π½ΠΎΡΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎ Π΄ΠΎΠ½Π½Ρ‹Ρ… ΠΎΡ‚Π»ΠΎΠΆΠ΅Π½ΠΈΠΉ ΠΈ ΠΏΠΎΡ€ΠΎΠ²ΠΎΠΉ Π²ΠΎΠ΄Ρ‹. ЦСль: описаниС формирования элСмСнтного состава Π²ΠΈΠ΄ΠΎΠ² ΠΌΠ°ΠΊΡ€ΠΎΡ„ΠΈΡ‚ΠΎΠ² тСрмокарстовых ΠΎΠ·Π΅Ρ€ сСвСра Π—Π°ΠΏΠ°Π΄Π½ΠΎΠΉ Π‘ΠΈΠ±ΠΈΡ€ΠΈ ΠΈ выявлСниС возмоТности ΠΈΡ… использования Π² Π±ΠΈΠΎΠΌΠΎΠ½ΠΈΡ‚ΠΎΡ€ΠΈΠ½Π³Π΅. ΠžΠ±ΡŠΠ΅ΠΊΡ‚Π°ΠΌΠΈ исслСдования слуТили растСния-ΠΌΠ°ΠΊΡ€ΠΎΡ„ΠΈΡ‚Ρ‹ (Hippuris vulgaris L., Glyceria maxima (Hartm.) Holmb., Comarum palustre L., Ranunculus spitzbergensis Hadac, Carex aquatilis Wahlenb s. str., Menyanthes trifoliata L.), Π΄ΠΎΠ½Π½Ρ‹Π΅ отлоТСния, ΠΏΠΎΡ€ΠΎΠ²Ρ‹Π΅ Π²ΠΎΠ΄Ρ‹ Π΄ΠΎΠ½Π½Ρ‹Ρ… ΠΎΡ‚Π»ΠΎΠΆΠ΅Π½ΠΈΠΉ тСрмокарстовых ΠΎΠ·Π΅Ρ€ сСвСра Π—Π°ΠΏΠ°Π΄Π½ΠΎΠΉ Π‘ΠΈΠ±ΠΈΡ€ΠΈ. ΠœΠ΅Ρ‚ΠΎΠ΄Ρ‹. ИсслСдованиС элСмСнтного состава ΠΎΠ±Ρ€Π°Π·Ρ†ΠΎΠ² ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΎΡΡŒ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ масс-спСктромСтрии с ΠΈΠ½Π΄ΡƒΠΊΡ‚ΠΈΠ²Π½ΠΎ связанной ΠΏΠ»Π°Π·ΠΌΠΎΠΉ (ИБП/МБ, Agilent Technologies, 7500 сС), ΠΊΠΎΠ½Ρ†Π΅Π½Ρ‚Ρ€Π°Ρ†ΠΈΠΈ Π°Π½ΠΈΠΎΠ½ΠΎΠ² Π² ΠΎΠ±Ρ€Π°Π·Ρ†Π°Ρ… Π²ΠΎΠ΄Ρ‹ ΠΎΠΏΡ€Π΅Π΄Π΅Π»ΡΠ»ΠΈΡΡŒ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ Тидкостной Ρ…Ρ€ΠΎΠΌΠ°Ρ‚ΠΎΠ³Ρ€Π°Ρ„ΠΈΠΈ (Dionex ICS/2000), ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ растворСнного органичСского ΡƒΠ³Π»Π΅Ρ€ΠΎΠ΄Π° ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΎΡΡŒ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ инфракрасной спСктроскопии (TOC/VCSN, Shimadzu), содСрТаниС органичСского ΡƒΠ³Π»Π΅Ρ€ΠΎΠ΄Π° Π΄ΠΎΠ½Π½Ρ‹Ρ… ΠΎΡ‚Π»ΠΎΠΆΠ΅Π½ΠΈΠΉ ΠΎΠΏΡ€Π΅Π΄Π΅Π»ΡΠ»ΠΎΡΡŒ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ инфракрасной спСктромСтрии (Horiba Jobin Yvon Emia/320V C/S Analyzer). БтатистичСская ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΠ° Π΄Π°Π½Π½Ρ‹Ρ… ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΈΠ»Π°ΡΡŒ с использованиСм ΠΏΠ°ΠΊΠ΅Ρ‚Π° ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌ STATISTICA 6.0.Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹. ΠšΠΎΡΡ„Ρ„ΠΈΡ†ΠΈΠ΅Π½Ρ‚Ρ‹ биологичСского накоплСния химичСских элСмСнтов Π² ΠΌΠ°ΠΊΡ€ΠΎΡ„ΠΈΡ‚Π°Ρ… ΠΎΡ‚Π½ΠΎΡΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎ Π΄ΠΎΠ½Π½Ρ‹Ρ… ΠΎΡ‚Π»ΠΎΠΆΠ΅Π½ΠΈΠΉ ΠΈ ΠΏΠΎΡ€ΠΎΠ²ΠΎΠΉ Π²ΠΎΠ΄Ρ‹ Π±Ρ‹Π»ΠΈ рассчитаны для Ρ‡Π΅Ρ‚Ρ‹Ρ€Π΅Ρ… ΠΊΠ»ΡŽΡ‡Π΅Π²Ρ‹Ρ… тСрмокарстовых ΠΎΠ·Π΅Ρ€. Π‘Ρ‹Π»ΠΎ ΠΏΠΎΠΊΠ°Π·Π°Π½ΠΎ, Ρ‡Ρ‚ΠΎ Π²ΠΎΠ΄Π½Ρ‹ΠΌΠΈ растСниями тСрмокарстовых ΠΎΠ·Π΅Ρ€ Π—Π°ΠΏΠ°Π΄Π½ΠΎΠΉ Π‘ΠΈΠ±ΠΈΡ€ΠΈ Π°ΠΊΡ‚ΠΈΠ²Π½ΠΎ Π½Π°ΠΊΠ°ΠΏΠ»ΠΈΠ²Π°ΡŽΡ‚ΡΡ макроэлСмСнты (Na, Mg, Ca), Π½Π΅ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ тяТСлыС ΠΌΠ΅Ρ‚Π°Π»Π»Ρ‹ ΠΈ ΠΌΠ΅Ρ‚Π°Π»Π»ΠΎΠΈΠ΄Ρ‹ (Ni, Cu, Zn, Co, As, Cd), Π° Ρ‚Π°ΠΊΠΆΠ΅ B ΠΈ Mo. ВысокиС коэффициСнты накоплСния тяТСлых ΠΌΠ΅Ρ‚Π°Π»Π»ΠΎΠ² ΠΌΠΎΠ³ΡƒΡ‚ Π³ΠΎΠ²ΠΎΡ€ΠΈΡ‚ΡŒ ΠΎ сущСствСнной Ρ„ΠΈΡ‚ΠΎΡ€Π΅ΠΌΠ΅Π΄ΠΈΠ°Ρ†ΠΈΠΎΠ½Π½ΠΎΠΉ Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΈ растСний-ΠΌΠ°ΠΊΡ€ΠΎΡ„ΠΈΡ‚ΠΎΠ² Π΄Π°Π½Π½ΠΎΠΉ Ρ‚Π΅Ρ€Ρ€ΠΈΡ‚ΠΎΡ€ΠΈΠΈ.Relevance. Macrophytes are one of the key participants in accumulation of chemical elements in lake ecosystems, but despite this, the issue of elemental composition of macrophytes of thermokarst lakes in Western Siberia and accumulation of chemical elements relative to the sediments and pore water remains practically unexplored. The aim of the research is to describe the formation of elemental composition of macrophyte species of thermokarst lakes in the north of Western Siberia and to identify the possibility of their use in biomonitoring. The objects of research were macrophyte plants (Hippuris vulgaris L., Glyceria maxima (Hartm.) Holmb., Comarum palustre L., Ranunculus spitzbergensis Hadac, Carex aquatilis Wahlenb s. Str., Menyanthes trifoliata L.), sediments and pore waters of thermokarst lakes of the north of Western Siberia. Methods. The elemental composition of the samples was studied by inductively coupled plasma mass spectrometry (ICP/MS, Agilent Technologies, 7500 se), the concentration of anions in water samples was determined by liquid chromatography (Dionex ICS/2000), the dissolved organic carbon was defined by infrared spectroscopy TOC/VCSN, Shimadzu), the organic carbon content of the sediments was determined by infrared spectrometry (Horiba Jobin Yvon Emia/320V C/S Analyzer). Statistical processing of data was carried out using the STATISTICA 6.0 software package. Results. The coefficients of biological accumulation of chemical elements in macrophytes relative to sediments and pore water were calculated for four key thermokarst lakes. It has been shown that macronutrients (Na, Mg, Ca), some heavy metals and metalloids (Ni, Cu, Zn, Co, As, Cd), as well as B and Mo are actively accumulated in water plants of thermokarst lakes of Western Siberia. High coefficients of accumulation of heavy metals indicate a significant phytoremediation function of macrophytes in a given territory
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