Dataset of monthly mean and annual carbon budget at Takayama in a cool-temperate deciduous forest in central Japan from 1994 to 2021

This dataset contains monthly mean and annual net ecosystem production (NEP), gross primary production (GPP) and ecosystem respiration (Rec) estimated from the carbon dioxide (CO₂) flux measurement at Takayama (36°09’N, 137°25’E, 1420 m a.s.l.) in a cool-temperate deciduous forest in central Japan from 1994 to 2021. The CO₂ flux measurements were initially obtained by aerodynamic method beginning in September 1993, replaced by eddy covariance method in July 1998. This dataset was used in the manuscript “Interannual variation and trend of carbon budget observed over a 28-year period at Takayama in a cool-temperate deciduous forest in central Japan”, to be submitted to a scientific journal for publication.