A framework of freshwater and saline lake typology classification through leveraging hydroclimate, spectral, and literature evidence DOI Open Access
Meng Ding, Jida Wang, Chunqiao Song

et al.

Authorea (Authorea), Journal Year: 2023, Volume and Issue: unknown

Published: May 25, 2023

Separating saline and freshwater lakes is of immense importance for monitoring lentic ecosystems assessing surface availability.However, conventional lake typology often relies on in situ salinity measurements, thus limiting the feasibility a global application.To enable an effective workaround, we here propose test framework that classifies through systematic, integrated leveraging hydrological, climatological, spectral, literature evidence.In principle, were sequentially identified if (1) located at drainage terminal where tends to build up as result lacking outflow (hydrological evidence), (2) distributed arid/semiarid climate with lacustrine evaporites visible from high-resolution multispectral image (climatological spectral or (3) documented be (sub)saline have measured exceeding maximum threshold (literature evidence).We applied HydroSHEDS hydrography dataset, Köppen-Geiger classification, large volume satellite images implement this framework.This was tested Tibetan Plateau using Landsatbased, 30-m-resolution UCLA circa-2015 mask, benchmarked against Chinese national survey.Our collected shows 95% agreement between types classified evidence alone those literature.After further corrections based evidence, our final classification reached overall accuracy nearly 70% terms count 94% area.Given such promising accuracies, Australia, showcasing its effectiveness without additional surveys across world's most continent.While method, theory, results conservative recognition should not considered complete substitute surveys, proposed demonstrates potential performing global-scale reasonable only remote sensing images, open-source data, existing literature.Terminal

Language: Английский

Widespread societal and ecological impacts from projected Tibetan Plateau lake expansion DOI Creative Commons
Fenglin Xu, Guoqing Zhang, R. Iestyn Woolway

et al.

Nature Geoscience, Journal Year: 2024, Volume and Issue: 17(6), P. 516 - 523

Published: May 27, 2024

Lakes on the Tibetan Plateau are expanding rapidly in response to climate change. The potential impact local environment if lake expansion continues remains uncertain. Here we integrate field surveys, remote sensing observations and numerical modelling assess future changes surface area, water level volume. We also ensuing risks critical infrastructure, human settlements key ecosystem components. Our results suggest that by 2100, even under a low-emissions scenario, area of endorheic lakes will increase over 50% (~20,000 km2) levels rise around 10 m relative 2020. This represents approximately fourfold storage compared with period from 1970s A shift shrinkage was projected southern plateau 2021. is primarily fuelled amplified inputs increased precipitation glacier meltwater, profoundly reshaping hydrological connectivity basins. In absence hazard mitigation measures, submerge including more than 1,000 km roads, 500 10,000 km2 ecological components such as grasslands, wetlands croplands. study highlights urgent need for management across Plateau. Model projections that, about widespread impacts infrastructure ecosystems.

Language: Английский

Citations

37
Addressing current climate issues in Pakistan: An opportunity for a sustainable future DOI Creative Commons
Muhammad Adnan, Baohua Xiao,

Shaheen Bibi

et al.

Environmental Challenges, Journal Year: 2024, Volume and Issue: 15, P. 100887 - 100887

Published: March 5, 2024

Climate change is an inevitable phenomenon and no longer a myth. new rising problem in South Asia; Pakistan suffers from its disastrous effects. This review examines the risks effects of climate Asia, particularly Pakistan. It seeks to illuminate recent floods' environmental, social, economic implications, analyze causes region's heightened susceptibility, evaluate current measures policies mitigate these The assessment also identify research policy gaps, environmental funding Sustainable Development Goals (SDGs). results indicate that weather trends, including glacier melting, lake outburst floods (GLOFs), extraordinary monsoon rainfall, caused July September 2022. Pakistan's population more despite contributing less than 1% global greenhouse gas emissions. Rapid industrialization, fossil fuel use, plastic deforestation worsen situation. emphasizes benefits reservoir management dam development strengthening ecosystems reducing flood risks. stresses importance integrating into socio-economic political framework for sustainable outcomes. need comprehensive, coordinated agreements Asia. Governments can prevent build resilient future by prioritizing development, innovative adaptation methods, international collaboration. recommends increasing water-related research, improving risk mitigation strategies, using knowledge diverse domains develop combat change. alignment with SDGs indicates addressing injustice's fundamental improve strategies limiting temperature increases 1.5°C protect ecosystems, human health, stability, especially low middle-income countries where threats could impair SDGs.

Language: Английский

Citations

18
Known and Unknown Environmental Impacts Related to Climate Changes in Pakistan: An Under-Recognized Risk to Local Communities DOI Open Access
Muhammad Adnan, Baohua Xiao,

Shaheen Bibi

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(14), P. 6108 - 6108

Published: July 17, 2024

This study prioritized initiatives within the China–Pakistan Economic Corridor (CPEC), foreign funding, and associated environmental national issues. Additionally, it analyzed these factors’ effects on improving infrastructure, commerce, economic cooperation between China Pakistan. Besides that, also studies current climatic, economic, political challenges, mainly focused water agriculture Climate, issues affect environment. These concerns deserve global attention. Pakistan relies agriculture, its scarcity predisposes to losses, urbanization, many socioeconomic problems. Climate change flood have devastated sector. Water affects too significantly impacts economy food resources. The nation has not previously experienced such a profoundly distressing epoch. faced several environmental, challenges; specifically, fields of present notable apprehensions. Unfavorable climatic conditions impede attainment sustainable in Considering strong reliance resources, is crucial acknowledge that industrialization resulted substantial contamination due presence microplastics heavy metals. Moreover, South Asian region experiences significant CPEC solution for financial issues, but big challenge degradation stage, especially since funding key increasing corruption bringing more burden economy. Unfortunately, good To ensure safety, security, sustainability, projects should follow regulations. provides new list initiative priority tasks openly disrupt initiative, serve whole project, give appropriate recommendations future research policy-making.

Language: Английский

Citations

12
Substantial increase of organic carbon storage in Chinese lakes DOI Creative Commons

Dong Liu,

Kun� Shi, Peng Chen

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Sept. 14, 2024

Language: Английский

Citations

11
Salinity as a key factor affecting viral activity and life strategies in alpine lakes DOI
L. Zang,

Yongqin Liu,

Nianzhi Jiao

et al.

Limnology and Oceanography, Journal Year: 2024, Volume and Issue: 69(4), P. 961 - 975

Published: Feb. 25, 2024

Abstract Viruses are major players in the biosphere, yet little is known about their dynamics and life strategies alpine lakes, particularly those on Tibetan Plateau. We investigated microbial abundance, viral dynamics, 10 high‐altitude lakes found that they harbor high levels of active viruses. Salinity was identified as a crucial factor influencing well strategies. Lytic lysogenic productions moderate‐ high‐salinity were significantly higher than freshwater lakes. A trade‐off between resulted switch from lysis to lysogeny Virus‐mediated cell virus decay sampled could release 162.72 2.84 μ g C L −1 d , respectively. These findings revealed role viruses carbon cycle may impact contribution cycle. The potential salinity changes triggered by climate change worldwide highlighted.

Language: Английский

Citations

6
Eutrophication exacerbated organic pollution in lakes across China during the 1980s–2010s DOI

Dong Liu,

Chenxue Zhang,

Nuoxiao Yan

et al.

Water Research, Journal Year: 2024, Volume and Issue: 268, P. 122782 - 122782

Published: Nov. 10, 2024

Language: Английский

Citations

5
Glacier Meltwater Input and Salinity Decline Promote Algal Growth in a Tibetan Saline Lake DOI Creative Commons
Chenliang Du, Ke Zhang, Qi Lin

et al.

Freshwater Biology, Journal Year: 2025, Volume and Issue: 70(3)

Published: March 1, 2025

ABSTRACT Global warming has caused widespread shifts in lake hydrological conditions due to the increasing glacial meltwater input on Tibetan Plateau. It is anticipated that favourable for algal growth will be developed as a result of rise temperature, nutrient supply and salinity decline. However, long‐term ecological process rarely explored, underlying mechanism remains poorly understood. Here, we investigated Bangdag Co., glacier‐fed high‐salinity located northwest Plateau, which been experiencing rapid expansion recent decades. We reconstructed community dynamics using sedimentary subfossil pigments explore lake's trajectory over past century. Combining remote sensing regional instrumental data, analysed how ecosystem responds climate warming, hydroclimatic change, their interactions. Our results showed pigment assemblages from total algae, chlorophytes, siliceous algae cyanobacteria were well‐preserved stable before 2000s, followed by an accelerated abundance increase with expansion. Random forest structural equation modelling analyses revealed shift was attributed input, decline warming. analysis demonstrates elevated prior 2000 hindered phytoplankton growth, suggesting ongoing melting dilution are restructuring saline ecosystems world. This study improves understanding primary producer succession inhabiting hypersaline environments emphasising significant impact induced dynamics.

Language: Английский

Citations

0
Microbial Metabolic Limitations and Their Relationships with Sediment Organic Carbon Across Lake Salinity Gradient in Tibetan Plateau DOI Creative Commons
Weizhen Zhang, Jianjun Wang, Yun Li

et al.

Microorganisms, Journal Year: 2025, Volume and Issue: 13(3), P. 629 - 629

Published: March 11, 2025

Inland lakes, contributing substantially to the global storage of sediment organic carbon (SOC), are subject marked changes in salinity due climate warming. The imbalance supply resources, such as carbon, nitrogen, and phosphorus, sediments leads microbial metabolic limitations (MMLs). This, turn, triggers secretion extracellular enzymes by microorganisms mine for deficient resources decomposing complex carbon. This process is a rate-limiting step degradation and, result, has potential regulate stocks. However, general understanding MML patterns their relationships with SOC content along lake gradients remains elusive. study examined 25 lakes on Tibetan Plateau ranging from 0.13‰ 31.06‰, analyzing MMLs through enzymatic stoichiometry. results showed that metabolism was mainly limited stronger at higher salinity. Water pH were main factors influencing limitations, either directly or indirectly, effects nutrients diversity. Additionally, negatively correlated limitation, relationship weakened when controlled. These findings suggest decrease increased could be driven offering insights into impact stocks inland change.

Language: Английский

Citations

0
A framework of freshwater and saline lake typology classification through leveraging hydroclimate, spectral, and literature evidence DOI Creative Commons
Meng Ding, Jida Wang, Chunqiao Song

et al.

Journal of Hydrology, Journal Year: 2024, Volume and Issue: 632, P. 130704 - 130704

Published: Jan. 23, 2024

Language: Английский

Citations

3
Alpine Extremophytes in Evolutionary Turmoil: Complex Diversification Patterns and Demographic Responses of a Halophilic Grass in a Central Asian Biodiversity Hotspot DOI Creative Commons
Anna Wróbel, Ewelina Klichowska, Arkadiusz Nowak

et al.

Systematic Biology, Journal Year: 2023, Volume and Issue: 73(2), P. 263 - 278

Published: Dec. 23, 2023

Diversification and demographic responses are key processes shaping species evolutionary history. Yet we still lack a full understanding of ecological mechanisms that shape genetic diversity at different spatial scales upon rapid environmental changes. In this study, examined differentiation in an extremophilic grass Puccinellia pamirica factors affecting its population dynamics among the occupied hypersaline alpine wetlands on arid Pamir Plateau Central Asia. Using genomic data, found evidence fine-scale structure gene flow localities established across high-elevation plateau as well fingerprints historical expansion. We showed increase effective size could coincide with Last Glacial Period, which was followed by decline during Holocene. Geographic distance plays vital role P. alongside isolation-by-environment habitat fragmentation. Our results highlight complex history divergence species-poor region Late Quaternary. demonstrate regional climate specificity shortage nonclimate data largely impede predictions future range changes extremophile using niche modeling. This study emphasizes importance heterogeneity for distribution shifts.

Language: Английский

Citations

4