Headwaters biogeochemistry focused on different rainfall-runoff conditions, and the role of waterlogged areas

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F23%3A10465796" target="_blank" >RIV/00216208:11310/23:10465796 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.ih.cas.cz/wp-content/uploads/2023/02/HMP2023_Sbornik.pdf" target="_blank" >https://www.ih.cas.cz/wp-content/uploads/2023/02/HMP2023_Sbornik.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Headwaters biogeochemistry focused on different rainfall-runoff conditions, and the role of waterlogged areas

Popis výsledku v původním jazyce

River headwaters have a high environmental value. Unfortunately, the biogeochemical process in headwaters in context of different rainfall-runoff conditions and specific land cover have not been fully examined. This study focuses on changes in correlations of 16 biogeochemical parameters related to different types of rainfall-runoff events and land cover conditions for eight headwater catchments in Central Europe. Multiple methods as linear regression, Spearman rank correlation, Principal Components Analysis and C/Q hysteresis loops revealed main relationships. Presence of peatlands and waterlogged spruce forests had decisive influence on the biogeochemistry (mainly for COD(Mn), humins, Fe, P-PO4(3-) TP, and N-NO3(-)). The strongest positive correlation of organic matter (COD(Mn)) and Fe is represented in a catchment with the largest area of damaged forest (70 %), but with a smaller proportion of wetlands (8 %). High flow rates influence the release of greater amounts of organic matter and N-NO3(-).

Název v anglickém jazyce

Headwaters biogeochemistry focused on different rainfall-runoff conditions, and the role of waterlogged areas

Popis výsledku anglicky

River headwaters have a high environmental value. Unfortunately, the biogeochemical process in headwaters in context of different rainfall-runoff conditions and specific land cover have not been fully examined. This study focuses on changes in correlations of 16 biogeochemical parameters related to different types of rainfall-runoff events and land cover conditions for eight headwater catchments in Central Europe. Multiple methods as linear regression, Spearman rank correlation, Principal Components Analysis and C/Q hysteresis loops revealed main relationships. Presence of peatlands and waterlogged spruce forests had decisive influence on the biogeochemistry (mainly for COD(Mn), humins, Fe, P-PO4(3-) TP, and N-NO3(-)). The strongest positive correlation of organic matter (COD(Mn)) and Fe is represented in a catchment with the largest area of damaged forest (70 %), but with a smaller proportion of wetlands (8 %). High flow rates influence the release of greater amounts of organic matter and N-NO3(-).

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10508 - Physical geography

Projekt

<a href="/cs/project/GA22-12837S" target="_blank" >GA22-12837S: Hydrologická a biogeochemická odezva horských rašelinišť na změny klimatu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů