Modelling Net Ecosystem Exchange in the Biebrza Wetlands using satellite and meteorological data
Author:
Dąbrowska-Zielińska Katarzyna1ORCID, Misiura Katarzyna1ORCID, Malińska Alicja1ORCID, Grzybowski Patryk2ORCID, Gurdak Radosław1ORCID, Bartold Maciej1ORCID, Kluczek Marcin1ORCID
Affiliation:
1. Remote Sensing Centre, Institute of Geodesy and Cartography , Warsaw , Poland 2. Institute of Geophysics, Faculty of Physics , University of Warsaw , Warsaw , Poland
Abstract
Abstract
The CO2 flux on Biebrza Wetlands in Poland is analysed by ground measurements and satellite data. The main goal of this study was to determine the Net Ecosystem Exchange (NEE) for sedges, reeds and grasses using meteorological, soil and vegetation parameters and satellite indicators. The calculations are based on chamber measurements scattered over the main habitats and meteorological registrations, and compared to the 2015–2022 eddy covariance (EC) measurements. The NEE model, to get its distribution throughout the day, was elaborated using modelled gross primary production GPP and modelled respiration RESP. The model of ecosystem respiration was developed applying air temperature, soil temperature, soil moisture and NDVI. The satellite vegetation index NDVI, surface and air difference temperature (TS-TA), and NDII proved to be good predictors for the daily mean GPP. The data from the EC tower was used to compare the results from modelled NEE and CO2 flux.
Publisher
Walter de Gruyter GmbH
Subject
Earth and Planetary Sciences (miscellaneous)
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