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Subarctic catchment water storage and carbon cycling – Leading the way for future studies using integrated datasets at Pallas, Finland by Hannu Marttila; Annalea Lohila; Pertti Ala‐Aho; Kashif Noor; Jeffrey M. Welker; Danny Croghan; Kaisa Mustonen; Leo‐Juhani Meriö; Anna Autio; Filip Muhic; Hannah Bailey; Mika Aurela; Jussi Vuorenmaa; Timo Penttilä; Valtteri Hyöky; Eric Klein; Anton Kuzmin; Pasi Korpelainen; Timo Kumpula; Anssi Rauhala; Bjørn Kløve is a Environmental Science article available to read on EtoBox.

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## Abstract Subarctic ecohydrological processes are changing rapidly, but detailed and integrated ecohydrological investigations are not as widespread as necessary. We introduce an integrated research catchment site (Pallas) for atmosphere, ecosystems, and ecohydrology studies in subarctic conditions in Finland that can be used for a new set of comparative catchment investigations. The Pallas site provides unique observational data and high‐intensity field measurement datasets over long periods. The infrastructure for atmosphere‐ to landscape‐scale research in ecosystem processes in a subarctic landscape has recently been complemented with detailed ecohydrological measurements. We identify three dominant processes in subarctic ecohydrology: (a) strong seasonality drives ecohydrological regimes, (b) limited dynamic storage causes rapid stream response to water inputs (snowmelt and intensive storms), and (c) hydrological state of the system regulates catchment‐scale dissolved carbon dynamics and greenhouse (GHG) fluxes. Surface water and groundwater interactions play an important role in regulating catchment‐scale carbon balances and ecosystem respiration within subarctic peatlands,

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Author

Hannu Marttila; Annalea Lohila; Pertti Ala‐Aho; Kashif Noor; Jeffrey M. Welker; Danny Croghan; Kaisa Mustonen; Leo‐Juhani Meriö; Anna Autio; Filip Muhic; Hannah Bailey; Mika Aurela; Jussi Vuorenmaa; Timo Penttilä; Valtteri Hyöky; Eric Klein; Anton Kuzmin; Pasi Korpelainen; Timo Kumpula; Anssi Rauhala; Bjørn Kløve

Publisher

Wiley

Published

2021

Language

EN

Field

Environmental Science (Physical Sciences)