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http://hdl.handle.net/2445/189020
Title: | Impacts of clear-cutting on groundwater discharge rates into a boreal stream |
Author: | Vela Ventura, Marc |
Director/Tutor: | Olid Garcia, Carolina |
Keywords: | Tala d'arbres Aigües subterrànies Treballs de fi de grau Tree felling Groundwater Bachelor's theses |
Issue Date: | Jun-2022 |
Abstract: | Clear-cutting is one of the major disturbances impacting forest carbon (C) storage by increasing dissolved C in soils that can be easily transported through groundwater and processed in recipient waters such as lakes and streams. Forest clear-cutting has been found to increase concentrations of greenhouse gases (GHGs) (carbon dioxide (CO2) and methane (CH4)) in first-order boreal streams. However, the importance of groundwater inflows in controlling stream GHG budgets is still uncertain. Here we combined a catchment experiment and the use of natural tracers (i.e., radon (222Rn)) to quantify the impact of forest clear-cuts and buffer zones on groundwater inflow rates into streams. Analyses of 222Rn concentrations in stream and groundwater, collected between April and October before and after clear-cut (2020 and 2021, respectively), showed that clear-cut increased groundwater discharge rates to the stream, resulting in higher inputs of dissolved C which likely increase GHG emissions to the atmosphere. Uncertainties in the results associated with the method’s limitations are also discussed |
Note: | Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2022, Tutora: Carolina Olid |
URI: | http://hdl.handle.net/2445/189020 |
Appears in Collections: | Treballs Finals de Grau (TFG) - Física |
Files in This Item:
File | Description | Size | Format | |
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VELA VENTURA MARC_6057626_assignsubmission_file_TFG-Vela-Ventura-Marc.pdf | 328.38 kB | Adobe PDF | View/Open |
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