Methane emission from peat-muck soil in the Biebrza River valley in relation to ground water level and fertilisation / Emisja metanu z gleby torfowo-murszowej w dolinie Biebrzy w zależności od poziomu wody gruntowej i nawożenia

Abstract

The paper presents results of a two-year study on methane emission carried out in lysimetric station situated on Kuwasy peatland in the Biebrza River valley. The aim of this study was to estimate the amount of methane emission from peat-muck soil in relation to ground water level and fertilisation. Methane emission was determined with the chamber method using photo-acoustic probe. Methane emission significantly depended on the ground water level. The largest CH 4 emission was found at full saturation of soil with water. With the decrease of ground water table the emission of methane decreased. Mineral fertilisation increased CH 4 emission. At ground water table depth of 50 cm, CH 4 emission from fertilised variant was by 42.3% bigger than from non--fertilised variant. Peat-muck soils overgrown by meadows in the Biebrza River valley were found to be an important source of methane emission. In the vegetation period at ground water

Assessment of Carbon Flux and Soil Moisture in Wetlands Applying Sentinel-1 Data

“…In it, photosynthesis processes are CO2 sinks, and respiration processes are CO2 sources. The NEE level is commonly measured by ground-based techniques such as Eddy Covariance [5][6][7][8][9][10][11][12][13][14][15][16] and chamber [17][18][19] methods. Remote sensing methods offer possibilities to evaluate NEE spatially, most often globally [20][21][22][23].…”