Schematic depicting the mesocosms dimensions and the elements (base collar and static chamber) used for measuring the N2O and CO2 emissions.
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posted on 2024-02-15, 18:32 authored by Pierre Ganault, Johanne Nahmani, Yvan Capowiez, Nathalie Fromin, Ammar Shihan, Isabelle Bertrand, Bruno Buatois, Alexandru MilcuL1 (0–8.5 cm), L2 (8.5–17 cm), L3 (17–25.5 cm) and L4 (25.5–34 cm depth) represent the four different soil layers that were separately analyzed for soil porosity variables.
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simplified agricultural contexthence greenhouse gasfewer anaerobic micrositesexperimental conditions allowingspecific burrowing activityearthworm burrowing activitystimulate microbial activitytopsoil macropore volumediv >< p4 %, respectivelyearthworm engineering effectsearthworm engineering effectincrease ghg emissionssoil moisture fluctuationsplants increased emissionsendogeic species aloneghg emissions decreasedmicrobial activityearthworm speciesmacropore volumeemissions decreasedsoil moisturesoil macroporosityreduced moistureendogeic speciescumulative emissionswetting cycleswater flowwater drainagetwo dryingresults indicateremains uncertainray tomographypresumably duemesocosms allowedmesocosm evapotranspirationlikely dueeffect controlleddeepest layer
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