The station Bily Kriz, with ICOS code CZ-BK1, is located in the north eastern part of the Czech Republic. The site is a evergreen needleleaf forest dominated by Norway Spruce (Picea abies (L.) Karst.) covering 99% of the investigated area with 1% addition of silver fir (Abies alba Mill.). According to FAO soil classification, soil type is haplic podzol, medium deep, sandy-clay (loamy-sand to sandy-loam) with high content of soil skeleton in the low layers.
This work is based on use of Large Research Infrastructure CzeCOS supported by the Ministry of Education, Youth and Sports of CR within the CzeCOS program, grant number LM2023048