Synchronous Nutrient Controlled-Release of Greenhouse Gases During Mineralization of Sediments from Different Lakes

Chen, Jing; Jin, Qiu; Shi, Ruijie; Xu, Xiaoguang; Zhao, Siyuan; Ji, Ming; Chen, Ruge; Sha, Yue; Xu, Yifan

doi:10.1007/s00128-020-02919-5

Cited by 7 publications

(1 citation statement)

References 31 publications

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“…Nitrogen (N) and phosphorus (P) are the major nutrients that cause eutrophication and other adverse impacts associated with nutrient over-enrichment (Howarth et al, 2000;Chen et al, 2020;Tuo et al, 2020a). Nitrogen, the most abundant chemical element of the Earth's atmosphere with almost 80% is also one of the essential component of many key biomolecules such as amino acids, nucleotides, etc.…”

Section: …………………………………………………………………………………………………… Introduction:-mentioning

confidence: 99%

Assessment of Inorganic Nutrients and Redfield Ratios in Waters Along Abobo-Doume Fish Market, Cote Divoire

Tuo¹

2020

IJAR

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Dissolved inorganic nitrogen and phosphorus are among the pollutants that are used worldwide for coastal waters quality assessment due to their ecological and toxicological effects on the aquatic ecosystems. Waters quality along the Abobo-Doume Fish Market in Ebrie Lagoon was assessed using five (5) stations by measuring pH, temperature, salinity, Electric conductivity, transparency and Total dissolved solids (TDS) on one hand, and on the other hand, inorganic nutrients concentrations as ammonium (NH4+), nitrite (NO2-), nitrate (NO3-) and phosphates (PO43-) by colorimetric methods. To quantify the primary production limitation, the N:P ratios were calculated and then compared to the Redfield one (16:1). Temperature, pH, salinity, Electric conductivity, transparency and Total Dissolved Solids (TDS) were found in respective ranges of 27.99-28.71Â°C 8.23-8.39 28.50-30.43Â‰ 44.30-46.7mS/Cm, 0.5-1.0m and 27.48-29.11 mg/L. NH4+, NO2-, NO3- and PO43- were found in the respective ranges of 0.318-0.753, 0.060-0.067, 1.90-5.20 and 0.38-0.55 mg/L. The highest concentrations of nitrogen and phosphorus species were respectively observed in surface and bottom waters. The analyzed waters were of Bad Quality due to high nitrate, nitrite and phosphates concentrations that were more than three times above the Bad Quality Class defined by the European Environmental Agencys criteria. The N:P ratios ranged from 7.94 to 25.36, and the ratios observed in surface waters were higher than the bottom ones. Waters were generally phosphorus (P)-Limited in surface and nitrogen (N)-Limited in bottom layers. Due to the high nutrients concentrations observed, a long-term assessment is therefore recommended to evaluate the temporal trends of the waters quality along Abobo-Doume Fish Market.

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Section: …………………………………………………………………………………………………… Introduction:-mentioning

confidence: 99%

Assessment of Inorganic Nutrients and Redfield Ratios in Waters Along Abobo-Doume Fish Market, Cote Divoire

Tuo¹

2020

IJAR

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Vertical distribution, environmental occurrence, and risk assessment of organic pollutants in lacustrine sediments in southeast China

Lang

Zhao

Chen

et al. 2023

Environ Sci Pollut Res

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To clarify environmental occurrence and ecological risks of Zhushan Bay in Taihu Lake, the characteristics of deposited organic materials (elements and 16 polycyclic aromatic hydrocarbons (∑ 16 PAHs) in a 93-cm sediment core from Taihu Lake were determined. The results showed that the values of nitrogen (N), carbon (C), hydrogen (H), and sulphur (S) ranged from 0.08%~0.3%, 0.83%~3.6%, 0.63%~1.12%, and 0.02%~0.24%, respectively. Signi cant changes in most elements at 50 cm depth due to changes in endogenous input, accompanied by algal blooms. The concentration of ∑ 16 PAHs was in a range of 1807.48 ~ 4674.83 ng g − 1 , showing a downward trend with the deepening of the depth, accompanied by uctuations. The 3-ring PAHs had obvious advantages in surface sediment. Affected by various factors, the change of PAHs concentration also mainly appeared at 50cm depth and it was estimated to occur in the 1900s. The ratio of PAH monomer and PCA results showed that the combustion of fossil fuels was the main source of PAHs in the sediments. The results of the toxicity analysis indicated that most of the PAH monomers had little impact on the ecology, and a small number of monomers were increasing year by year and close to the ERM value, which should be controlled and paid attention to.

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The balance of carbon emissions versus burial in fish ponds: The role of primary producers and management practices

GIRARD,

DAVIDSON,

TOLON

et al. 2024

Aquaculture Reports

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Synchronous Nutrient Controlled-Release of Greenhouse Gases During Mineralization of Sediments from Different Lakes

Cited by 7 publications

References 31 publications

Assessment of Inorganic Nutrients and Redfield Ratios in Waters Along Abobo-Doume Fish Market, Cote Divoire

Assessment of Inorganic Nutrients and Redfield Ratios in Waters Along Abobo-Doume Fish Market, Cote Divoire

Vertical distribution, environmental occurrence, and risk assessment of organic pollutants in lacustrine sediments in southeast China

The balance of carbon emissions versus burial in fish ponds: The role of primary producers and management practices

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