GHG measurement and modelling at field level.
The objective of the work package is to elaborate measuring methods and models to effectively evaluate the contribution of agricultural activities to GHG emissions from fields. The production and emission control in the field level is conducted for the main greenhouse gases in agriculture: carbon dioxide (CO2), nitrous oxide (N2O) and methane (CH4). During the vegetation period the fluxes of CO2, CH4 and N2O emission are measured with the use of chamber method. Two types of measurements are carried out: 1) continuous measurement located in one of the Experimental Farms (EF) where the best conditions are met (performed by IUNG-PIB), 2) Measurement campaigns in three locations: Grabów EF (LTE1) and Kępa-Osiny EF (LTE2) and IA-PAN experiment (LTE6) (performed by IAPAN) and in LTE5 with System ACE (Kępa-Osiny EF). Additionally, vegetation monitoring of the fields are performed. Measured soil and climatic data feed crop growth models and gas emission models.