Water, Free Full-Text
Por um escritor misterioso
Last updated 16 março 2025

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.

FREE Water into wine Full Lesson

FREE) Water Text PSD Mockup - Photoshop Supply

Collection/Where's My Water? Free, Where's My Water? Wiki

Water, Free Full-Text

Family Day at the Lake - City of Graham, NC

Healthy Water Free Chapters

Wasting Water Stock Illustrations – 150 Wasting Water Stock

Characteristics Of Free Water And Bound Water In Foods - Colaboratory

Blue Water - Editable Text Effect, Font Style
The Full Oasis Water Center

Ways to save water at home - order your free water saving devices

America's Premier Quality Water Test - WaterLogix Basic

Hydrating Fragrance-Free Vegan Face Toner

Ways We Can Conserve Water FREE craft!
Recomendado para você
-
Conheça Heaven Roleplay: GTA brasileiro de qualidade! - MixMods16 março 2025
-
Underground Roleplay [ANDROID E PC] – Discord16 março 2025
-
SAMP/UGMP] Underground Multiplayer First Look!16 março 2025
-
Underground Roleplay16 março 2025
-
Eclipse-RP - GTA V Roleplaying Server16 março 2025
-
Download RP-Server with many objects for GTA San Andreas16 março 2025
-
Skin 207 (VHFYPRO) GTA: Underground - Combining the 3d era16 março 2025
-
PDF) Numerical Study of Gas Breakthrough in Preferential Rocks for Underground Nuclear Waste Repositories16 março 2025
-
The Design of water quality management projects with inadequate data16 março 2025
-
Мероприятие ᴜɴᴅᴇʀɢʀᴏᴜɴᴅ ✘ fight16 março 2025
você pode gostar
-
Troféus do Futebol: Campeonato Mexicano (Liga MX)16 março 2025
-
sigma male (@iamadefault6789) / X16 março 2025
-
Tsukimichi: Moonlit Fantasy Season 2 Announced16 março 2025
-
🇮🇹⭐Starbear Entertainment⭐🇬🇧 on X: - THE MIMIC: CHARACTER16 março 2025
-
Apparently this is a usb mod that you put into the console! Is it undetectable? : r/Gta5Modding16 março 2025
-
Bruce Springsteen - The Rising - Lyrics - A3 Typographic Poster Art Print - Limited Edition : : Home & Kitchen16 março 2025
-
WGA - Super Mario All Stars + Super Mario World : Nintendo/Wookis16 março 2025
-
Me Da Um Beijo?😳 (PT-BR 🇧🇷) Boku No Kokoro no Yabai / The16 março 2025
-
Pin de Sk em Lords mobile16 março 2025
-
Molde Laços Fofos GG Artes da Cris – Amor In'Arte Biscuit16 março 2025