Lake Water Ecological Simulation for a Typical Alpine Lake on the Tibetan Plateau DOI Open Access
Qunhui Zhang,

Liang Chang,

Xiaofan Gu

et al.

Water, Journal Year: 2024, Volume and Issue: 16(14), P. 1982 - 1982

Published: July 12, 2024

Lakes on the Tibetan Plateau (TP) serve as both indicators of and safeguards against climate change, playing a crucial role in aquatic ecosystems TP. While considerable attention has been devoted to studying thermal dynamic processes TP lakes, research focusing their ecological variations limited. In this study, we selected Namco, representative lake TP, investigate its water using AQUATOX model. Long-term spanning from 1980 2020 were analyzed based observations. Our results revealed consistent increase nutrients, particularly total nitrogen (WTN), phosphorus (WTP), over study period. Additionally, concentrations chlorophyll-a (Chl-a) gross net primary production (WGPP WNPP) exhibited significant upward trend. Despite persistent state poor nutrition lake, conditions improved. Multiple linear regression analysis indicated that WGPP, WNPP, Chl-a more sensitive local hydrology compared WTN WTP. A continuously warming would heat up body, further enhancing improving quality future. This provides insights for limnological can be used inform management strategies high-altitude alpine regions.

Language: Английский

Pollution Analysis of Metals in the Sediments of Lagoon Lakes in Türkiye: Toxicological Risk Assessment and Source Insights DOI
Bayram Yüksel, Fikret Ustaoğlu

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 1, 2024

Language: Английский

Citations

21

Human Impacts Dominate Global Loss of Lake Ecosystem Resilience DOI Creative Commons
Yaoyao Han, Qi Lin, Shixin Huang

et al.

Geophysical Research Letters, Journal Year: 2024, Volume and Issue: 51(11)

Published: June 5, 2024

Abstract Strengthening aquatic resilience to prevent adverse shifts is critical for preserving global freshwater biodiversity and advancing Sustainable Development Goals. Nonetheless, understanding the long‐term trends underlying causes of lake ecosystem at a scale remains elusive. Here, we employ an innovative framework, integrating satellite‐derived water quality indices with early warning signals machine learning techniques, investigate dynamics in 1,049 lakes worldwide during 2000–2018. Our results indicate that 46.7% are experiencing significant decline resilience, particularly since 2010s, closely associated higher human population density anthropogenic eutrophication. In contrast, most situated alpine regions exhibit increase probably benefiting from climate warming wetting. Together, this study provides novel way monitor predict undesired transitions, reveals widespread erosion ability withstand stressors change.

Language: Английский

Citations

8

Advancing sustainability: The role of epiplastic microalgae and their enzymatic pathways in freshwater plastic biodegradation DOI

Antony Prakash Rejoy P,

Sagaya John Paul Joseph,

S. Nagaraj

et al.

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 67, P. 106134 - 106134

Published: Sept. 10, 2024

Language: Английский

Citations

5

Human activities and ecosystem health: A historical analysis of Poyang Lake DOI Creative Commons
Yaobin Liu,

Jiao Liu,

Xiaojie Yin

et al.

Ecological Indicators, Journal Year: 2024, Volume and Issue: 166, P. 112446 - 112446

Published: Aug. 2, 2024

Urbanization, industrialization, land development, and other human activities have led to ecological issues such as shrinking lake wetlands, fragmented cropland, reduced biodiversity. Taking the Poyang Lake urban agglomeration study area, textual analysis method was used analyze typical facts of historical succession since 1949, then index spatial were adopted characterize temporal evolution ecosystem health in period 2003–2020. On this basis, spillover effects on investigated based Durbin model four dimensions. The results show that area gone through management path from "agricultural retreat fishery advancement" "dike reclamation" "sand ban" "returning lake". Ecological protection has sublimation "enlightenment" "full implementation" "strengthening upgrading". 2003 2020 been range 0.37709 ∼ 0.3709 0.3709. 0.48485, with characteristics "low center high periphery". city expansion agricultural county are generally distributed pattern "high center, low periphery", while distribution water body is characterized by "near-lake" "near-river", newly registered enterprises a change "point" "surface". "proximity lake" river", changes There significant competition effect health, there negative collaboration industrial activities, effect. can provide more detailed empirical support for regulation global lakeside agglomerations.

Language: Английский

Citations

4

A framework to comprehensively assess lake health from a perspective of ecosystem integrity and services DOI Creative Commons
Zhixuan Zhao,

Fangfei Wei,

Haotian Wu

et al.

Ecological Indicators, Journal Year: 2025, Volume and Issue: 171, P. 113169 - 113169

Published: Feb. 1, 2025

Language: Английский

Citations

0

Assessing multi-spatial driving factors of urban land use transformation in megacities: a case study of Guangdong–Hong Kong–Macao Greater Bay Area from 2000 to 2018 DOI Creative Commons
Yuan Meng, Man Sing Wong, Mei‐Po Kwan

et al.

Geo-spatial Information Science, Journal Year: 2023, Volume and Issue: unknown, P. 1 - 17

Published: Oct. 5, 2023

Rapid morphological and socioeconomic changes have accelerated the urbanization process urban land use transformation in China. Megacities comprise clusters of cities exhibit both newly formed well-developed development beyond administrative boundaries. It is necessary to distinguish changing effects spatial-varying driving factors on uses from built-up areas megacities. This study proposed a multi-spatial framework quantify region-level socioeconomics, cluster-level ecological morphologies, grid-level functional morphologies. A three-level Bayesian hierarchical model was developed investigate impacts The period focused between 2000 2018 Guangdong–Hong Kong–Macao Greater Bay Area (GBA). Results revealed that compared with land, could be captured based model. total population associated increasing possibilities forming new residential than ones 35 districts/counties/cities GBA. Cluster-level attributes higher proportion, lower edge density built areas, lower-degree complexity showed probability industrial public land. Grid-level including transportation shopping/dining distribution exhibited significantly decreasing (coefficients: −2.12 −0.51) contributing whereas business/industry represented 0.99 0.15) probabilities (coefficient: −0.22) industrial/public separately. research shows attempt

Language: Английский

Citations

10

How Hydrological Extremes Affect the Chlorophyll-a Concentration in Inland Water in Jiujiang City, China: Evidence from Satellite Remote Sensing DOI Creative Commons
Wei Jiang, Xiaohui Ding,

Fanping Kong

et al.

ISPRS International Journal of Geo-Information, Journal Year: 2025, Volume and Issue: 14(2), P. 85 - 85

Published: Feb. 15, 2025

From 2020 to 2022, hydrological extremes such as severe floods and droughts occurred successively in Jiujiang city, Poyang Lake Basin, posing a threat regional water quality safety. The chlorophyll-a (Chl-a) concentration is key indicator of river eutrophication. Until now, there has been lack empirical research exploring the Chl-a trend inland context extremes. In this study, Sentinel-2 satellite remote sensing data sourced from Google Earth Engine (GEE) cloud platform, along with hourly collected monitoring stations Jiangxi Province, China, are utilized develop quantitative inversion model for concentration. concentrations various types were estimated each quarter spatiotemporal distribution was analyzed. main findings follows: (1) validated via situ measurements, coefficient determination 0.563; (2) spatial estimates revealed slight increasing trend, by 0.1193 μg/L closely aligning monitoring-station data; (3) an extreme drought 2022 led less bodies, consequently, displayed significant upward especially Lake, where mean increased approximately 1 Q1 Q2 2022. These seasonal changes waters events, thus providing valuable information sustainable management city.

Language: Английский

Citations

0

Cladocera assemblages indicate environmental gradients of lake productivity and morphometry in central Europe DOI Creative Commons
Izabela Zawiska, Alexander Correa‐Metrio, Monika Rzodkiewicz

et al.

Boreas, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Lakes play a vital role in numerous human activities, yet extensive economic development has led to significant pollution and nutrient enrichment, resulting widespread eutrophication ecological disruption. To accurately assess the current state of lakes, it is essential understand their historical, pre‐impact conditions. Palaeolimnological methods, including analysis subfossil Cladocera, offer valuable tool for studying lake ecosystems over extended timeframes that go beyond modern instrumental records. Our research aims identify primary environmental factors influence distribution individual Cladocera species evaluate systematic patterns within assemblages enhance use as indicators. This study presents an based on surveys conducted 64 lakes across northeastern Poland. Principal component revealed two dominant driving variability dataset are trophic state, indicated by total phosphorus (TP) levels, depth. Species distributions these gradients showed turnover, reflecting distinct preferences. Further, end member (EM) identified five each associated with specific combinations status size. EM1 higher states, while EM2, EM3 EM4 indicative medium low states. EM5 independent status, large deep‐water bodies.

Language: Английский

Citations

0

Asymmetry between ecosystem health and ecological quality from an Earth observation perspective DOI Creative Commons

Jiapeng Xiong,

Hangnan Yu, Lan Li

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: March 24, 2025

Ecological quality (EQ) and ecosystem health (EH) are closely related. Previous studies haven't addressed their spatial relationships fully; therefore, whether there is consistency between the two remains unclear. In this study, EQ EH of Mekong River Basin (MRB), located in Southeast Asia, were determined by applying Remote Sensing Index (RSEI) Vigor, Organization, Resilience, Services (VORS) models, a comparative analysis was conducted. The results showed that (RSEI_mean = 0.56) (EHI_mean 0.59) had high degrees consistency. However, some degree differences certain land use types, such as grassland 0.46; EHI_mean 0.57) cropland 0.41; 0.47), may have been influenced selection service types prioritized VORS model. addition, significant areas with relatively elevations, especially barren 0.61; 0.23), showing asymmetry. correlation coefficient increases significantly from 0.62 to 0.72 after excluding altitude areas. These indicate relationship probably applicable natural environments low altitudes less human activity.

Language: Английский

Citations

0

Exploring spatiotemporal coupling effects between built environment and ecosystem health: Toward static–dynamic sustainable management in waterfront cities DOI

Suwen Xiong,

Fan Yang, Chen Gu

et al.

Journal of Cleaner Production, Journal Year: 2025, Volume and Issue: unknown, P. 145389 - 145389

Published: March 1, 2025

Language: Английский

Citations

0