The Seasonal Environmental Factors and Phytoplankton Composition of Lake Paldang, the Largest Water Source in South Korea DOI Open Access
Jong Kwon Im, Youn-Bo Sim,

Jeong Hwan Byun

et al.

Water, Journal Year: 2024, Volume and Issue: 16(23), P. 3504 - 3504

Published: Dec. 5, 2024

This study aimed to determine the seasonal variations in growth and species composition of phytoplankton Lake Paldang, South Korea’s largest freshwater body, based on environmental factors. Weekly surface water samples were collected analyzed for three years (2015–2017). A total 160 distributed across eight divisions. Diatoms dominant all seasons except summer their equivalents. All seven indices—Shannon, equitability, Simpson, Menhinick, evenness, dominance, Berger-Parker—presented a clear trend September, which may be attributed rainfall July. Canonical correspondence analysis (CCA) was employed analyze relationship between occurrence abundance The results showed that WTE, TP, PO4-P, negatively correlated with Ulnaria acus, Asterionella formosa, Stephanodiscus hantzschii, whereas Scenedesmus sp. Merismopedia tenuissima presented positive correlations. Microcystis demonstrated correlations TOC, NH3-N, HRT, appeared primarily fall 2015, dry season. According Palmer pollution index, is calculated species, Paldang no signs top 99.8% but evaluated as organically polluted overall phytoplankton, especially spring summer.

Language: Английский

Assessing the conjunction of environmental sustainability and tourism development along Chinese waterways DOI Creative Commons
Qiaoyu Li, Wang Xiaoyu, Zhangting Chen

et al.

Ecological Indicators, Journal Year: 2024, Volume and Issue: 166, P. 112281 - 112281

Published: June 25, 2024

The complex interplay between tourism expansion and environmental conservation responsibilities necessitates the adoption of sustainable practices in aquatic ecosystems around world. Still, existing scholarly investigations predominantly focus on dynamics individual rivers, resulting considerable gaps our comprehension large river network systems. To redress these gaps, this study examines potential effects development sustainability Yangtze River its tributaries China. Furthermore, it evaluates government support interventions aimed at strengthening while proposing specific improvements. In 2023, a comprehensive survey involving 982 stakeholders provided invaluable insights into multilayered nexus sustainability. We analyzed carefully gathered data from thoughtfully designed questionnaire using rigorous reliability assessments, correlation analyses, regression techniques. Cronbach's alpha coefficients ranging 0.83 to 0.95 results, indicating robust reliability. findings reveal positive correlations governmental sustainability, with visitor management showing strongest (r = 0.66**). analysis reveals that contribute both economic (R2 0.61 ∼ R2 0.77, ΔR2 16) 0.51 0.62, 11) Thus, highlights importance intervention achieving Therefore, advocates coordinated approach maximize policy formulation implementation benefits. This provides actionable for researchers, stakeholders, policymakers alike promote practices.

Language: Английский

Citations

6
Environmental risk assessment, spatial distribution, and abundance of heavy metals in surface sediments of Dal Lake-Kashmir, India DOI Creative Commons
Arfat Nazir,

Shaik Mohammad Hussain,

Muzafar Riyaz

et al.

Environmental Advances, Journal Year: 2024, Volume and Issue: 17, P. 100562 - 100562

Published: June 26, 2024

This study assesses the pollution levels of Dal Lake in Kashmir, India, focusing on spatial distribution, abundance, and risk heavy metals surface sediments. Granulometric analysis revealed a complex interplay sedimentation processes, characterized by wide range sand (1.25% to 47.03%), silt (2.65% 58.21%), clay (38.35% 94.48%) contents across sediment samples. The average CaCO3 content 18.65% is notably higher than observed other regional global lakes, indicating production or preservation carbonates. organic matter (OM) within samples varied significantly, ranging from 3.9% 25.01%, reflecting sedimentary dynamics. Utilizing environmental assessment indices (Contamination Factor, degree contamination, Pollution Load Index, Potential ecological index, Enrichment Geo-accumulation Index) multivariate statistical analyses (Pearson's Correlation, Principal Component Analysis, Cluster Analysis), it examines contamination Iron, Manganese, Cobalt, Chromium, Copper, Nickel, Lead, Zinc 32 Results indicate variability metal concentrations, with Cobalt 24.1178 ppm 52.95 Iron 25,800.99 164,747.82 ppm, highlighting areas significant potential risks, especially which exceeds safe for benthic invertebrates. Index suggests moderate lake. These findings emphasize urgent need continuous monitoring effective management protect Lake's integrity.

Language: Английский

Citations

6
Lakes declining in the mega-Changjiang River Basin in China DOI
Fanxing Bu, Zhijun Dai,

Chuqi Long

et al.

Lake and Reservoir Management, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 15

Published: Jan. 8, 2025

Bu F, Dai Z, Long C, Yang J, Mei X, Chu A. 2025. Lakes declining in the mega-Changjiang River Basin China. Lake Reserv Manage. XXX–XXX.

Language: Английский

Citations

0
Apportioning and modeling the anthropogenic fingerprints in a Himalayan freshwater lake over the last ~ 3.7 ka: Insights into pollution chronology and future policy implications DOI Creative Commons
Shahnawaz Hassan, Bikram Singh Bali, Prachita Arora

et al.

Environmental Chemistry and Ecotoxicology, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

Citations

0
Where the Wild Things Are: Identifying the Factors Behind and Mitigation Measures for Biodiversity Conservation Crisis in Himalayas DOI

Chandranshu Tiwari,

Mala Rani

Published: Jan. 1, 2025

Language: Английский

Citations

0
Water Quality Changes in the Xingkai (Khanka) Lake, Northeast China, Driven by Climate Change and Human Activities: Insights from Published Data (1990–2020) DOI Open Access
Yaping Wu,

Dan Chen,

Yu Liu

et al.

Water, Journal Year: 2024, Volume and Issue: 16(21), P. 3080 - 3080

Published: Oct. 28, 2024

Water quality degradation and eutrophication of lakes are global ecological environmental concerns, especially shallow lakes. This study collected hydrochemical data from 2935 samples the Chinese part Xingkai (Khanka) Lake, based on 40 published papers spanning period 2001 to 2023. Using water index (WQI), improved geo-accumulation (Igeo), redundancy analysis (RDA), we analyzed overall contamination characteristics environment in Lake. Additionally, explored impact climate change human activities lake’s quality. The results showed that annual WQI for Lake ranged 47.3 72, with a general downward trend, indicating improving Notably, average May total nitrogen (TN) content decreased significantly, signaling further improvement concentration TN sediments was 1401.3 mg/kg, reflecting mild contamination. Igeo values heavy metals Hg Cr were greater than 1, moderate contamination, while Cd Pb between 0 which is range uncontaminated moderately contaminated. Land use (average temperature precipitation) key factors influencing quality, cumulative explanatory ratios 67.3% 50.1%. utilized land-use as metric activities, highlighting potential impacts It offers vital insights sustainable management provides valuable references into similar transboundary

Language: Английский

Citations

3
Examining the drivers of forest cover change and deforestation susceptibility in Northeast India using multicriteria decision-making models DOI
Rajkumar Guria, Manoranjan Mishra, Biswaranjan Baraj

et al.

Environmental Monitoring and Assessment, Journal Year: 2024, Volume and Issue: 196(11)

Published: Oct. 24, 2024

Language: Английский

Citations

1
Review of: "Exploring the Impact of Future Land Uses on Flood Risks and Ecosystem Services, With Limited Data: Coupling a Cellular Automata Markov (CAM) Model, With Hydraulic and Spatial Valuation Models" DOI Creative Commons
Aman Srivastava

Published: April 18, 2024

Language: Английский

Citations

0
Pollution status of microplastics in the sediments of warm monomictic Dal Lake, India: abundance, composition, and risk assessment DOI

Samreen Sajad,

Bharat Kumar Allam, Abhijit Debnath

et al.

Environmental Pollution, Journal Year: 2024, Volume and Issue: 363, P. 125247 - 125247

Published: Nov. 5, 2024

Language: Английский

Citations

0
The Seasonal Environmental Factors and Phytoplankton Composition of Lake Paldang, the Largest Water Source in South Korea DOI Open Access
Jong Kwon Im, Youn-Bo Sim,

Jeong Hwan Byun

et al.

Water, Journal Year: 2024, Volume and Issue: 16(23), P. 3504 - 3504

Published: Dec. 5, 2024

This study aimed to determine the seasonal variations in growth and species composition of phytoplankton Lake Paldang, South Korea’s largest freshwater body, based on environmental factors. Weekly surface water samples were collected analyzed for three years (2015–2017). A total 160 distributed across eight divisions. Diatoms dominant all seasons except summer their equivalents. All seven indices—Shannon, equitability, Simpson, Menhinick, evenness, dominance, Berger-Parker—presented a clear trend September, which may be attributed rainfall July. Canonical correspondence analysis (CCA) was employed analyze relationship between occurrence abundance The results showed that WTE, TP, PO4-P, negatively correlated with Ulnaria acus, Asterionella formosa, Stephanodiscus hantzschii, whereas Scenedesmus sp. Merismopedia tenuissima presented positive correlations. Microcystis demonstrated correlations TOC, NH3-N, HRT, appeared primarily fall 2015, dry season. According Palmer pollution index, is calculated species, Paldang no signs top 99.8% but evaluated as organically polluted overall phytoplankton, especially spring summer.

Language: Английский

Citations

0