Water, Free Full-Text
Por um escritor misterioso
Last updated 24 outubro 2024
The carbon (C) cycle in inland waters, including carbon concentrations in and carbon dioxide (CO2) emissions from water surfaces, are at the forefront of biogeochemical studies, especially in regions strongly impacted by ongoing climate change. Towards a better understanding of C storage, transport and emission in Central Asian mountain regions, an area of knowledge that has been extremely poorly studied until now, here, we carried out systematic measurements of dissolved C and CO2 emissions in rivers and lakes located along a macrotransect of various natural landscapes in the Sayan–Altai mountain region, from the high mountains of the Western Sayan in the northwest of Tyva to the arid (dry) steppes and semideserts in the intermountain basins in the southeast of Tyva on the border with Mongolia. New data on major hydrochemical parameters and CO2 fluxes (fCO2) gathered by floating chambers and dissolved organic and inorganic carbon (DOC and DIC, respectively) concentrations collected over the four main hydrological seasons allowed us to assess the current C biogeochemical status of these water bodies in order to judge possible future changes under climate warming. We further tested the impact of permafrost, river watershed size, lake area and climate parameters as well as ‘internal’ biogeochemical drivers (pH, mineralization, organic matter quality and bacterial population) on CO2 concentration and emissions in lakes and rivers of this region and compared them with available data from other subarctic and mountain settings. We found strong environmental control of the CO2 pattern in the studied water bodies, with thermokarst lakes being drastically different from other lakes. In freshwater lakes, pCO2 negatively correlated with O2, whereas the water temperature exerted a positive impact on pCO2 in large rivers. Overall, the large complexity of counteracting external and internal drivers of CO2 exchange between the water surfaces and the atmosphere (CO2-rich underground DIC influx and lateral soil and subsurface water; CO2 production in the water column due to dissolved and particulate OC biodegradation; CO2 uptake by aquatic biota) precluded establishing simple causalities between a single environmental parameter and the fCO2 of rivers and lakes. The season-averaged CO2 emission flux from the rivers of Tyva measured in this study was comparable, with some uncertainty, to the C uptake fluxes from terrestrial ecosystems of the region, which were assessed in other works.
News and Resources – Future Rivers
【EXCELLENT MATERIAL】: This water bed is made of thickened PVC material, elastic, wear-resistant and tear-resistant, heat and cold resistant. Free flow
Free Flow Full Wave Water Bed Mattress - PVC Square Purple Softside Water Bed, Comfortable and Foldable Water Mattress Set for The Elderly, Children
Collection/Where's My Water? Free, Where's My Water? Wiki
Jet Condenser Seminar Pdf Download - Colaboratory
May 6, Annual Water Festival!
SUGAR-FREE SAD WATER SWEATSHIRT – ☹️Sad Water🌧
Water Font Vector Art, Icons, and Graphics for Free Download
One Water
Realistic Water Text Effect Mockup Stock Template
Free PSD Pool water background text effect
Maps of the median water total THM (A), BrTHM (B), and free
Use of iodine for water disinfection: iodine toxicity and maximum
Water July-1 2022 - Browse Articles
Recomendado para você
-
SAMP Underground RP - (Re)aprendendo a jogar como COP24 outubro 2024
-
Underground RP24 outubro 2024
-
Underground Roleplay24 outubro 2024
-
role underground|Pesquisa do TikTok24 outubro 2024
-
SA-MP Launcher APK for Android Download24 outubro 2024
-
Forests, Free Full-Text24 outubro 2024
-
The Design of water quality management projects with inadequate data24 outubro 2024
-
Paris Metro Map Coffee Mug Paris Mug France Mug Paris24 outubro 2024
-
SAIU! O MELHOR SERVIDOR INOVADOR Underground RPG - GTA SAMP ANDROID/PC24 outubro 2024
-
Why A Million People Still Play Multiplayer Grand Theft Auto: San Andreas Every Month24 outubro 2024
você pode gostar
-
How To Plan the Best Day in Wimberley Texas - Plan to Explore24 outubro 2024
-
One of the oldest snippets ever from JuiceWrld's IG Live. Look at the viewer count. : r/JuiceWRLD24 outubro 2024
-
design custom roblox clothes24 outubro 2024
-
HASBRO Mythic Beast Collection Burst PRO SERIES Beyblades F469524 outubro 2024
-
Game of Thrones: A Clash of Kings” #1 – Multiversity Comics24 outubro 2024
-
Doutor Estranho No Multiverso Da Loucura – Filmes no Google Play24 outubro 2024
-
Preços baixos em Xadrez Contemporâneo de Mármore24 outubro 2024
-
Spy x Family Part 2 Episode 19 - Anime Review - DoubleSama24 outubro 2024
-
Best Podcasts of 2023 - The Podcast App24 outubro 2024
-
The Maze Runner' proves better than book24 outubro 2024