Maximizing the information obtained from chamber-based greenhouse gas exchange measurements in remote areas
MetadataShow full item record
Measurements of greenhouse gas (GHG) fluxes, particularly methane (CH4) and nitrous oxide (N2O) in mountain ecosystems are scarce due to the complexity and unpredictable behavior of these gases, in addition to the remoteness of these ecosystems. In this context, we measured CO2, CH4, and N2O fluxes
in four semi-natural pastures in the Pyrenees to investigate their magnitude and range of variability. Our interest was to study GHG phenomena at the patch-level, therefore we chose to measure the gas-exchange using a combination of a gas analyzer and manual chambers. The analyzer used is a photoacoustic field gas-monitor that allows multi-gas instantaneous measurements. After implementing quality control and corrections, data was of variable quality. We tackled this by categorizing data as to providing quantitative or only qualitative information: 50% and 59% of all CH4 and N2O data, respectively, provided quantitative information above the detection limit. We chose not to discard data providing only qualitative information, because they identify highest- and lowest-flux peak periods and indicate the variability of the fluxes, along different altitudes and under different climatic conditions. We chose not to give fluxes below detection limit a quantitative value but to acknowledge them as values identifying periods with low fluxes.
Is part ofMethodsX, 2018, vol. 5, p. 973-983
The following license files are associated with this item:
Showing items related by title, author, creator and subject.
Phenology and plant functional type dominance drive CO2 exchange in seminatural grasslands in the Pyrenees Ibañez, Mercedes; Altimir, Núria; Ribas Artola, Àngela; Eugster, Werner; Sebastià, Ma. T. (Cambridge University Press, 2020-04-01)Understanding the mechanisms underlying net ecosystem CO2 exchange (NEE) in mountain grasslands is important to quantify their relevance in the global carbon budget. However, complex interactions between environmental ...
A method to obtain orange crop geometry information using a mobile terrestrial laser scanner and 3D modeling Colaço, André F.; Trevisan, Rodrigo G.; Molin, José P.; Rosell Polo, Joan Ramon; Escolà i Agustí, Alexandre (MDPI, 2017)LiDAR (Light Detection and Ranging) technology has been used to obtain geometrical attributes of tree crops in small field plots, sometimes using manual steps in data processing. The objective of this study was to develop ...
Carbon-nitrogen interactions in European forests and semi-natural vegetation – Part 1: Fluxes and budgets of carbon, nitrogen and greenhouse gases from ecosystem monitoring and modelling Flechard, Chris R.; Ibrom, Andreas; Skiba, Ute M.; de Vries, Wim; van Oijen, Marcel; Cameron, David R.; Dise, Nancy B.; Korhonen, Janne F.J.; Buchmann, Nina; Legout, Arnaud; Simpson, David; Sanz, Maria J.; Aubinet, Marc; Loustau, Denis; Montagnani, Leonardo; Neirynck, Johan; Janssens, Ivan A.; Pihlatie, Mari; Kiese, Ralf; Siemens, J.; Francez, André-Jean; Augustin, Jürgen; Varlagin, Andrej; Olejnik, Janusz; Juszczak, Radosław; Aurela, Mika; Berveiller, Daniel; Chojnicki, Bogdan H.; Dämmgen, Ulrich; Delpierre, Nicolas; Djuricic, Vesna; Drewer, Julia; Dufrêne, Eric; Eugster, Werner; Fauvel, Yannick; Fowler, David; Frumau, Arnoud; Granier, André; Gross, Patrick; Hamon, Yannick; Helfter, Carole; Hensen, Arjan; Horváth, László; Kitzler, Barbara; Kruijt, Bart; Kutsch, Werner L.; Lobo-do-Vale, Raquel; Lohila, A.; Longdoz, Bernard; Marek, Michal V.; Matteucci, Giorgio; Mitosinkova, Marta; Moreaux, Virginie; Neftel, Albrecht; Ourcival, Jean-Marc; Pilegaard, K.; Pita, Gabriel; Sanz, Francisco; Schjoerring, Jan K.; Sebastià, Ma. T.; Tang, Y. Sim; Uggerud, Hilde; Urbaniak, Marek; van Dijk, Netty; Vesala, Timo; Vidic, Sonja; Vincke, Caroline; Weidinger, Tamás; Zechmeister-Boltenstern, Sophie; Butterbach-Bahl, Klaus; Nemitz, Eiko; Sutton, Mark A. (European Geosciences UnionCopernicus Publications, 2020-03-26)The impact of atmospheric reactive nitrogen (Nr) deposition on carbon (C) sequestration in soils and biomass of unfertilized, natural, semi-natural and forest ecosystems has been much debated. Many previous results of this ...