Impact of hydrophyte decomposition on the changes and characteristics of dissolved organic matter in lake water

Yuan, Donghai; Zhao, Yinxiu; Guo, Xujing; Zhai, Linxiao; Wang, Xinyi; Wang, Jiazhuo; Cui, Yanqi; He, Liansheng; Yan, Chenling; Kou, Yingying

doi:10.1016/j.ecolind.2020.106482

Cited by 20 publications

(4 citation statements)

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“…It is predetermined by the intended uses and each of these uses affects, more or less, its quality [30]. In shallow lakes, the flooding season concerning the influence of extrinsic factors, including mainly the fertilizer loss through the runoff from farmlands [31], and intrinsic factors, i.e., sediment aggregations or floating materials [32], and other aspects such as hydrophyte uptake or decomposition [33] determine their quality.…”

Section: Discussionmentioning

confidence: 99%

Comprehensive Insight into Lake Nasser Environment: Water Quality and Biotic Communities—A Case Study before Operating the Renaissance Dam

Goher

Napiórkowska‐Krzebietke

Aly

et al. 2021

Water

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This study focused on the monitoring and assessment of aquatic ecosystem functioning based on the abiotic and biotic features of Lake Nasser in the post-flood and pre-flood periods as the last ones before water storing behind the Grand Ethiopian Renaissance Dam. The physicochemical parameters, distribution and structure of biotic communities, including bacteria, phytoplankton, zooplankton, macrophytes, epiphytes and fish were analyzed at 15 sites. The values of most parameters (primarily temperature, total suspended solids, pH, orthophosphates, carbonates, sulphates and some cations) were higher in the pre-flood period, whereas higher values of conductivity, total dissolved solids, total solids, nitrites, nitrates, chemical oxygen demand, bicarbonates and chlorophyll a were recorded in the post-flood period. Cyanobacteria-dominated phytoplankton and total coliform bacteria were more abundant in the pre-flood period, and especially at sites 10–15, whereas higher abundances of zooplankton were recorded in the post-flood period. All these changes in parameters were significantly differentiated, and only the concentrations of dissolved oxygen, biochemical oxygen demand, ammonium and silicates were at similar level in both periods. The study also indicated that environmental factors had affected the macrophyte distribution and the adaptation of the invasive species Myriophyllum spicatum to thrive under different environmental factors in the lake. Besides, macrophytes provided the habitat to other aquatic organisms, especially epiphytes, and also helped maintaining the good water quality, nutrient cycling and stabilizing rivers’ and lakes’ banks. Generally, these conditions were rather favorable for biological processes and fish production.

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Section: Discussionmentioning

confidence: 99%

Comprehensive Insight into Lake Nasser Environment: Water Quality and Biotic Communities—A Case Study before Operating the Renaissance Dam

Goher

Napiórkowska‐Krzebietke

Aly

et al. 2021

Water

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“…As this index is dependent on DOC (A 254 /DOC) and DOC contents are higher at the outlet than at the inlet of the basins during the spring and summer (Figure 2a), SUVA 254 should decrease during these seasons. However, the DOC released by aquatic plants by exudation [60][61][62] or when degraded by microorganisms may contain some aromatic compounds [26,[72][73][74][75], represented by A 254 , which counterbalances the effect of DOC in SUVA 254 . This leached DOC depends on the macrophyte species; it can differ, for example, in color and C/nutrient ratio [76], in percentage of humic-like matter and photo-reactivity [77], and in the percentages of proteins, amino acids and carbohydrates [78].…”

Section: Uv-visible Spectramentioning

confidence: 99%

Role of Seasons in the Fate of Dissolved Organic Carbon and Nutrients in a Large-Scale Surface Flow Constructed Wetland

Maurice

Pochet²,

Adouani

et al. 2022

Water

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The role of seasons in the removal of dissolved organic carbon (DOC), nutrients and in changes in the spectral properties of dissolved organic matter (DOM) in a large-scale surface flow constructed wetland (SF-CW) receiving reclaimed water and composed of three basins with different vegetation patterns was studied. Dissolved nitrogen removal efficiencies within the three basins in summer (>50%) and winter (<30%) were significantly different. SF-CW water is enriched in DOC in spring and summer with average outlet concentrations above 8 mg×L−1. UV-visible indices, such as the specific absorbance at 254 nm or the spectral slope between 275 and 295 nm, did not vary over the seasons; thus, the basins did not change DOM aromaticity and average molecular weight. Synchronous fluorescence spectra showed variations in terms of protein-like and humic-like substances, the latter being more sensitive to photodegradation. A lab-scale photodegradation experiment confirmed that radiation from the sun was responsible for this decrease, showing this process could alter the composition of DOM at full-scale. DOM variations result from a seasonal competition between release by vegetation and photodegradation. These results validate the necessity for long-term monitoring of SF-CWs, and the utility of rapid optical methods to monitor DOC.

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“…An important indicator of the ecological state of a reservoir under anthropogenic impact is the concentration of biogenic elements in the water. This primarily refers to mineral compounds of nitrogen and phosphorus, as the most easily assimilated form by phytoplankton (Yuan et al, 2020). The biogenic elements are characterized by seasonal variability; their content in water is closely related to the vegetation of phytoplankton.…”

Section: Introductionmentioning

confidence: 99%

Impact of Technogenic Factors on Surface Water of the Ilek River Basin

Berdenov¹,

Safarov²,

Mendybaev³

et al. 2022

SGTS

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Бас редактор ЖҰРЫНОВ Мұрат Жұрынұлы, химия ғылымдарының докторы, профессор, ҚР ҰҒА академигі, Қазақстан Республикасы Ұлттық Ғылым академиясының президенті, АҚ «Д.В. Сокольский атындағы отын, катализ және электрохимия институтының» бас директоры (Алматы, Қазақстан) H = 4 АБСАДЫКОВ Бахыт Нарикбайұлы, техника ғылымдарының докторы, профессор, ҚР ҰҒА жауапты хатшысы, А.Б. Бектұров атындағы химия ғылымдары институты (Алматы, Қазақстан) H = 5 Р е д а к ц и я л ы қ а л қ а: ӘБСАМЕТОВ Мәліс Құдысұлы (бас редактордың орынбасары), геология-минералогия ғылымдарының докторы, профессор, ҚР ҰҒА академигі, «У.М. Ахмедсафина атындағы гидрогеология және геоэкология институтының» директоры (Алматы, Қазақстан) H = 2 ЖОЛТАЕВ Герой Жолтайұлы (бас редактордың орынбасары), геология-минералогия ғылымдарының докторы, профессор, Қ.И. Сатпаев тындағы геология ғылымдары институтының директоры (Алматы, Қазақстан) Н=2 СНОУ Дэниел, Рһ.D, қауымдастырылған профессор, Небраска университетінің Су ғылымдары зертханасының директоры (Небраска штаты, АҚШ) H = 32 ЗЕЛЬТМАН Реймар, Рһ.D, табиғи тарих мұражайының Жер туралы ғылымдар бөлімінде петрология және пайдалы қазбалар кен орындары саласындағы зерттеулердің жетекшісі (Лондон, Англия) H = 37 ПАНФИЛОВ Михаил Борисович, техника ғылымдарының докторы, Нанси университетінің профессоры (Нанси, Франция) Н=15 ШЕН Пин, Рһ.D, Қытай геологиялық қоғамының тау геологиясы комитеті директорының орынбасары, Американдық экономикалық геологтар қауымдастығының мүшесі (Пекин, Қытай) H = 25 ФИШЕР Аксель, Ph.D, Дрезден техникалық университетінің қауымдастырылған профессоры (Дрезден, Берлин) Н = 6 КОНТОРОВИЧ Алексей Эмильевич, геология-минералогия ғылымдарының докторы, профессор, РҒА академигі, А.А. Трофимука атындағы мұнай-газ геологиясы және геофизика институты (Новосибирск, Ресей) H = 19 АГАБЕКОВ Владимир Енокович, химия ғылымдарының докторы, Беларусь ҰҒА академигі, Жаңа материалдар химиясы институтының құрметті директоры (Минск, Беларусь) H = 13 КАТАЛИН Стефан, Рһ.D, Дрезден техникалық университетінің қауымдастырылған профессоры (Дрезден, Берлин) H = 20 СЕЙТМҰРАТОВА Элеонора Юсуповна, геология-минералогия ғылымдарының докторы, профессор, ҚР ҰҒА корреспондент-мүшесі, Қ.И. Сатпаев атындағы Геология ғылымдары институты зертханасының меңгерушісі (Алматы, Қазақстан) Н=11 САҒЫНТАЕВ Жанай, Ph.D, қауымдастырылған профессор, Назарбаев университеті (Нұр-Сұлтан, Қазақстан) H = 11 ФРАТТИНИ Паоло, Рһ.D, Бикокк Милан университеті қауымдастырылған профессоры (Милан, Италия) H = 28 «Известия НАН РК. Серия геологии и технических наук».

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Impact of hydrophyte decomposition on the changes and characteristics of dissolved organic matter in lake water

Cited by 20 publications

References 50 publications

Comprehensive Insight into Lake Nasser Environment: Water Quality and Biotic Communities—A Case Study before Operating the Renaissance Dam

Comprehensive Insight into Lake Nasser Environment: Water Quality and Biotic Communities—A Case Study before Operating the Renaissance Dam

Role of Seasons in the Fate of Dissolved Organic Carbon and Nutrients in a Large-Scale Surface Flow Constructed Wetland

Impact of Technogenic Factors on Surface Water of the Ilek River Basin

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