Examining the Stand Level CO2 Fluxes of Spring Forest Geophytes

Spring forest ephemerals often create homogeneous patches in the understory; however, our knowledge about their stand level characteristics is deficient. Our aims were to examine, parallel phenology, Net Ecosystem CO2 Exchange (NEE) and evapotranspiration (ET) fluxes as well dependence of NEE on leaf area (LA), air temperature (Tair) light (PPFD) three spring geophytes that are widespread Europe. Furthermore, we compared net photosynthesis. The methods used included open chamber measurements with an infrared gas analyser permanent plots a weekly basis. results showed levels all species proved be carbon sinks from beginning vegetation period until end it or last phase fruit formation. largest amount sink was observed at peak blooming. A positive linear correlation measured between PPFD LA, while negative regression Tair. remarkable uptake capacity indicates non-negligible role geophyte flux temperate forests. In addition, research provided new proof operation, stability regulation.