Driving Factors and Variability of Cyanobacterial Blooms in Qionghai Lake, Yunnan–Guizhou Plateau, China

Water, Год журнала: 2025, Номер 17(2), С. 169 - 169

Опубликована: Янв. 10, 2025

Qionghai Lake is an important freshwater source in the Yunnan–Guizhou Plateau. However, cyanobacterial blooms have been observed recently Lake, but their formation mechanism and control management are not well understood. Herein, phytoplankton, zooplankton, eutrophication, nutrients, biochemical indices were measured from May 2022 to April 2023. The results showed that predominated Anabaena sp. with a density of 1.11 × 107–18.87 107 cells/L. started northwestern area November then expanded entire lake until it peaked subsided February Protozoa dominated zooplankton while having no significant relationship Lake. trophic level index chlorophyll similar spatiotemporal trends density, water quality northwest was worse than other parts. Total nitrogen (TN) total phosphorus (TP) 0.41–0.54 0.021–0.045 mg/L TN TP positively correlated most environmental factor affecting bloom These findings might provide essential information for improving remediation

Язык: Английский

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Influences of dissolved organic matter on phytoplankton functional diversity and resource use efficiency differ in three lakes with contrasting trophic state and depth

Aquatic Sciences, Год журнала: 2025, Номер 87(2)

Опубликована: Фев. 3, 2025

Язык: Английский

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Bacterially mediated phosphorus cycling favors resource use efficiency of phytoplankton communities in a eutrophic plateau lake

Water Research, Год журнала: 2025, Номер 277, С. 123300 - 123300

Опубликована: Фев. 15, 2025

Язык: Английский

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Occurrence and risk assessment of different cyanotoxins and their relationship with environmental factors in six typical eutrophic lakes of China

Environmental Research, Год журнала: 2025, Номер unknown, С. 121184 - 121184

Опубликована: Фев. 1, 2025

Язык: Английский

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Spatiotemporal Variations in Water Quality Parameters and Assessment of the Current Status and Challenges of Eutrophication in Lake Dian

Опубликована: Янв. 1, 2025

Язык: Английский

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Satellite Data Revealed That the Expansion of China’s Lakes Is Accompanied by Rising Temperatures and Wider Temperature Differences

Remote Sensing, Год журнала: 2025, Номер 17(9), С. 1546 - 1546

Опубликована: Апрель 26, 2025

Lake surface water area (LSWA) and lake temperature (LSWT) are critical indicators of climate change, responding rapidly to global warming. However, studies on the synergistic variations LSWA LSWT scarce, coupling relationships among lakes with different environmental characteristics remain unclear. In this study, relative growth rate (RKLSWA); absolute rates annual maximum, mean, minimum LSWTs (i.e., KLSWT_max, KLSWT_mean, KLSWT_min); difference between maximum (LSWT_mmd) (KLSWT_mmd) were investigated across more than 4000 in China using long-term Landsat data, their types permafrost non-permafrost recharge, endorheic or exorheic lakes, natural artificial lakes) comprehensively analyzed. Results indicate significant differences trends LSWT, as well interrelationships various regions types. Qinghai–Tibet Plateau (QTP), 57.8% showed an increasing trend LSWA, 2.4% showing moderate expansion (RKLSWA values 0.1–0.2), while over 27.5% South (SC) region displayed shrinkage −0.1~0%/year). Regarding LSWTs, 49.8% QTP exhibited a KLSWT_max greater 0, 47.9% KLSWT_mean 0. contrast, 48.1% Middle Lower Yangtze River Plain (MLYP) had less 48.5% Additionally, supplied by permanent demonstrated both those non-permanent permafrost. Further analysis revealed that approximately 20.2% experienced concurrent increase mean whereas around 18.9% simultaneous rise LSWT_mmd LSWA. This suggests is correlated rising temperatures differences. study provides deeper insights into response Chinese change offers important references for resource management ecological conservation.

Язык: Английский

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Multiple Influences on Cyanobacterial Abundance and Diversity in the Beijing-Tianjin-Hebei Economic Circle and Nearby Areas of China

Current Research in Microbial Sciences, Год журнала: 2025, Номер unknown, С. 100400 - 100400

Опубликована: Май 1, 2025

Язык: Английский

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Seasonal Variations in Water Quality and Algal Blooming in Hypereutrophic Lake Qilu of Southwestern China

Water, Год журнала: 2022, Номер 14(17), С. 2611 - 2611

Опубликована: Авг. 25, 2022

Understanding the spatiotemporal distributions and variation characteristics of water quality parameters is crucial for ecosystem restoration management lakes, in particular, Lake Qilu (QL), a typical plateau shallow lake on Yunnan-Guizhou Plateau, southwestern China. To identify main causes harmful algal blooming continuous decline, total phosphorus (TP), nitrogen (TN), temperature (WT), dissolved oxygen (DO), chlorophyll-a (Chl-a), pH, turbidity hypereutrophic from January 2017 to December 2021 were analyzed. The results showed complex pattern distribution variation. WT no significant change vertical profile. DO pH value variations caused by both physical biochemical processes, especially at bottom QL with an anaerobic environment. Trophic State Index (TSI) assessment that eutrophic (70.14% all samples, 50 < TSI 70) (29.86%, 70 TSI) poor (WQI 25). TP factors controlling blooms (HABs) based statistical analysis Principal Component Analysis (PCA), Random Forest Model (RFM), Correlation (CA). In QL, loading reduction level increase might be key strategies treating HABs future. Based our results, reducing may more effective than TN prevent highly eutrophicated Qilu.

Язык: Английский

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A method for researching the eutrophication and N/P loads of plateau lakes: Lugu Lake as a case

The Science of The Total Environment, Год журнала: 2023, Номер 876, С. 162747 - 162747

Опубликована: Март 10, 2023

Язык: Английский

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Heterogeneous bacterial communities affected by phytoplankton community turnover and microcystins in plateau lakes of Southwestern China

The Science of The Total Environment, Год журнала: 2023, Номер 903, С. 166303 - 166303

Опубликована: Авг. 15, 2023

Язык: Английский

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