Journal of Hydrology, Journal Year: 2023, Volume and Issue: 627, P. 130357 - 130357
Published: Oct. 23, 2023
Language: Английский
Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(12), P. 4701 - 4719
Published: March 13, 2023
High-frequency water quality measurements in streams and rivers have expanded scope sophistication during the last two decades. Existing technology allows situ automated of constituents, including both solutes particulates, at unprecedented frequencies from seconds to subdaily sampling intervals. This detailed chemical information can be combined with hydrological biogeochemical processes, bringing new insights into sources, transport pathways, transformation processes particulates complex catchments along aquatic continuum. Here, we summarize established emerging high-frequency technologies, outline key hydrochemical data sets, review scientific advances focus areas enabled by rapid development rivers. Finally, discuss future directions challenges for using bridge management gaps promoting a holistic understanding freshwater systems catchment status, health, function.
Language: Английский
Citations
57
Water Resources Research, Journal Year: 2025, Volume and Issue: 61(3)
Published: March 1, 2025
Abstract Global warming can change the freeze‐thaw cycles (FTCs) in seasonally frozen ground and influence soil water conservation. This study employed an enhanced SWAT‐FT (Soil Water Assessment Tool‐FTCs) model to explore effects of different future climate scenarios on FTCs, hydrothermal dynamics, erosion Upper Mississippi River Basin (UMRB), a typical black region with ground. Results suggested that could more representatively simulate dynamics compared SWAT. The simulations revealed temperature 0–100 cm layers UMRB increase by approximately 2°C–4°C during FTCs period under SSP5‐8.5 mid late 21st century, decreasing freezing days (FD) even absence some southern zones, but FD for central zones. These changes were affected air temperature, content, snow cover, resulting three dominant response patterns global UMRB, which lag symmetric northern non‐symmetric rapid alterations due exacerbated early spring after 2.3 times 2071–2100 baseline scenario (1985–2014). Moreover, pattern converted from “dual‐peak” “single‐peak” April or May, increasing challenges control.
Language: Английский
Citations
1
Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 358, P. 120917 - 120917
Published: April 24, 2024
Language: Английский
Citations
8
Scientific Reports, Journal Year: 2021, Volume and Issue: 11(1)
Published: Dec. 1, 2021
Abstract Peat accumulation in high latitude wetlands represents a natural long-term carbon sink, resulting from the cumulative excess of growing season net ecosystem production over non-growing (NGS) mineralization soils. With latitudes experiencing warming at faster pace than global average, especially during NGS, major concern is that enhanced soil organic will steadily increase CO 2 emissions northern peatlands. In this study, we conducted laboratory incubations with soils boreal and temperate peatlands across Canada. were pretreated for different moisture levels, rates measured 12 sequential temperatures, covering range − 10 to + 35 °C including one freeze–thaw event. On peat samples increased more sharply temperature samples. For same temperature, optimum levels higher flooded sites. However, standard reaction kinetics (e.g., Q coefficient Arrhenius equation) failed account apparent lack dependence below 0 °C, sudden after freezing Thus, caution against using simple kinetic expressions represent peatlands, regarding long NGS period multiple freeze thaw events.
Language: Английский
Citations
37
Communications Earth & Environment, Journal Year: 2021, Volume and Issue: 2(1)
Published: June 7, 2021
Abstract Peatlands are important ecosystems that store approximately one third of terrestrial organic carbon. Non-growing season carbon fluxes significantly contribute to annual budgets in peatlands, yet their response climate change is poorly understood. Here, we investigate the governing environmental variables non-growing emissions a northern peatland. We develop support-vector regression model using continuous 13-year dataset eddy covariance flux measurements from Mer Blue Bog, Canada. determine only seven were needed reproduce fluxes, which most sensitive net radiation above canopy, soil temperature, wind speed and moisture. find changes temperature photosynthesis drove flux. Assessing ecosystem exchange under three representative concentration pathways, project 103% increase peatland loss by 2100 high scenario. suggest losses constitute strong positive feedback loop.
Language: Английский
Citations
34
Journal of Hydrology, Journal Year: 2022, Volume and Issue: 612, P. 128060 - 128060
Published: June 15, 2022
Language: Английский
Citations
24
Journal of Hydrology Regional Studies, Journal Year: 2022, Volume and Issue: 42, P. 101173 - 101173
Published: July 12, 2022
Irtysh River Basin, a transboundary river laying in the North hemisphere and serving as home for around 15 million people China, Kazakhstan, Russia. Considering existing pressures of climate change anthropogenic activities on water resources, this research aims to evaluate recent (2010–2022) trends about state-of-the-art matter relationships between hydrological budget, quality, biodiversity, policy issues. A literature review was carried out English, Chinese, Russian languages defining key issues management. Melting permafrost, glaciers, snow upstream mountains should be considered one processes budget. However, high impact evapotranspiration rate could offset effect increased melting along basin. Efficient operating large dams reservoirs planning future installations deserves special attention assurance respective level restoration ecological diversity Implementation water-saving techniques tributaries also play significant role keeping resilience river. Handling historical contamination will guarantee health. The basin management still lacks tripartite agreement, however principles hydrosolidarity no-harm are followed by involved countries.
Language: Английский
Citations
24
Applied Water Science, Journal Year: 2023, Volume and Issue: 13(12)
Published: Nov. 14, 2023
Abstract The impacts of climate change-induced warming on our ecosystems can no longer be neglected, but understanding consequences for groundwater in general and quality particular is alarmingly incomplete. In this review, we therefore provide an overview the current state knowledge related to impact global precious resources. Groundwater shallow aquifers closely associated with increasing average land surface temperatures has already reached + 1 K compared pe-industrial times. Until end twenty-first century, temperature increases local up 10 are possible. Monitoring data, laboratory field experiments all evidence that such sufficient substantially modify through numerous interlinked biogeochemical processes, which have summarized a conceptual overview. Warming highly site-specific spatially heterogeneous, complicates their assessment prediction. Locally, unconfined nutrient-rich floodplain most susceptible warming-induced changes. Importantly, processes affecting water not only modified by long-term rise temperatures, also short-term during weather extremes, great relevance riverbank filtration. At regional scale, cold regions impacted permafrost thawing especially vulnerable warming. As majority temperature-sensitive or very slowly reversable, pressingly require comprehensive mechanistic before it too late develop suitable countermeasures management strategies.
Language: Английский
Citations
16
Advances in Climate Change Research, Journal Year: 2024, Volume and Issue: 15(2), P. 265 - 274
Published: March 27, 2024
Frozen ground (FG) plays an important role in global and regional climates environments through changes land freeze‒thaw processes, which have been conducted mainly different regions. However, the surface processes under climate change on a scale are still unclear. Based ERA5-Land hourly skin temperature data, this study evaluated FG area, first freeze date (FFD), last (LFD) frost-free period (FFP) from 1950 to 2020. The results show that current areas (1991‒2020 mean) Northern Hemisphere (NH), Southern (SH), globe 68.50 × 106, 9.03 77.53 106 km2, account for 72.4%, 26.8%, 60.4% of exposed (excluding glaciers, ice sheets, water bodies) NH, SH globe, respectively; further, relative 1951‒1980, area decreased by 1.9%, 8.8%, 2.8%, respectively. Seasonally at lower latitudes degrades intermittently FG, non-frozen ground, caused boundary retreat higher annual SH, all significant decreasing trends (p < 0.05) 2020 −0.32 −0.22 −0.54 km2 per decade, FFP prolongation NH is influenced LFD advance, while it controlled FFD delay. trend (1.34 d decade) larger than (1.15 decade).
Language: Английский
Citations
6
Earth s Future, Journal Year: 2024, Volume and Issue: 12(3)
Published: March 1, 2024
Abstract Two major barriers hinder the holistic understanding of subsurface critical zone (CZ) evolution and its impacts: (a) an inability to measure, define, share information (b) a societal structure that inhibits inclusivity creativity. In contrast aboveground portion CZ, which is visible measurable, bottom boundary difficult access quantify. context these barriers, we aim expand spatial reach CZ by highlighting existing effective tools for research as well “human reach” science expanding who performs such it benefits. We do so exploring diversity vocabularies techniques used in relevant disciplines, defining terminology, prioritizing questions can be addressed. Specifically, explore geochemical, geomorphological, geophysical, ecological measurements modeling estimate base thickness. also outline importance approaches developing diverse workforce looks like harnesses creativity society serves, addressing historical legacies exclusion. Looking forward, suggest grow science, must broaden physical spaces studied their relationships with inhabitants, measure “deep” make data accessible, address bottlenecks scaling data‐model integration. What needed—and what have tried outline—are common fundamental structures applied anywhere researchers involved investigating recording processes from myriad perspectives.
Language: Английский
Citations
5