Changes in rainfall-runoff regime and biogeochemistry in headwater areas

Headwater areas are a very important current or potential drinking water source. Their ecological value for the whole ecosystem is equally important. Headwater areas are sites with minimal anthropogenic intervention and usually the least polluted water sources. Changes in climate and rainfall-runoff...

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Bibliographic Details
Main Author: Fraindová, Kateřina
Other Authors: Matoušková, Milada, Komínková, Dana, Matschullat, Jörg, Benešová, Libuše
Format: Thesis
Language:English
Published: Univerzita Karlova, Přírodovědecká fakulta 2024
Subjects:
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Online Access:https://hdl.handle.net/20.500.11956/188728
Description
Summary:Headwater areas are a very important current or potential drinking water source. Their ecological value for the whole ecosystem is equally important. Headwater areas are sites with minimal anthropogenic intervention and usually the least polluted water sources. Changes in climate and rainfall-runoff (R-R) regime together with water quality in these areas affect the status and availability of water further downstream significantly. It is also one of the most sensitive areas and is an early indicator of ongoing changes. This thesis focuses on the main issues that are already ongoing and are affecting the availability of drinking water significantly. Some of these are trends in R-R regime in the context of the climate change and glacier retreat in headwater areas. As a very good example of a mid-latitude river with a complex rainfall-runoff regime, where a large impact of regional climate warming and glacier retreat are strongly manifested, The Athabasca River Basin was selected for this study. Related to this issue is the river water quality, which is influenced by changes in both temperature and R-R regime, together with the increasing occurrence of extreme hydrometeorological situations such as droughts and floods. The effects of land cover on water quality are also analysed, along with consideration of. Pramenné oblasti představují v současné době velice významný aktuální či potenciální zdroj pitné vody, přičemž neméně důležitý je i jejich ekologický význam pro celý ekosystém. Jedná se o lokality s minimálními antropogenními zásahy a s obvykle nejméně znečištěnými vodními zdroji. Změna klimatu a srážko-odtokového režimu i kvalita vody v těchto oblastech významně ovlivňují stav a dostupnost vody dále po proudu. Zároveň se jedná o jednu z nejcitlivějších oblastí, která je včasným indikátorem probíhajících změn. Práce se zaměřuje na hlavní problémy, které v současné době již probíhají a významným způsobem ovlivňují dostupnost pitné vody. Jedním z nich jsou trendy srážko-odtokového režimu v souvislosti se změnou ...