This dataset contains measurements of greenhouse gas exchange (carbon dioxide and methane) over a plantation forest on peat, in the Flow Country, Caithness and Sutherland. It contains eddy-covariance and associated meteorological and pedological measurements from 2016/01/01 to 2017/12/31 at half hourly intervals. The time series has been gap filled to allow the calculation of annual budgets for carbon exchange. The site reference is UK-DKE ( http://www.europe-fluxdata.eu/home/sites-list ) Full details about this dataset can be found at https://doi.org/10.5285/856d0d16-53fe-4560-8976-b4bc75d37adc