Fine-root production in boreal peatland forests: effects of stand and environmental factors

Fine-root production (FRP) data along with climatic variables (annual precipitation, temperature sum, and latitude) and stand variables (tree stand stem volume; tree stand basal area; stand basal area of tree species including Scots pine, Norway spruce and deciduous trees; site type; peat type; peat depth; C:N ratio of topmost 20 cm peat layer; grouping of sites to nutrient rich and nutrient poo; average soil water-table level) from 28 forestry-drained peatland forest sites in Finland,

FRP and its depth distribution were estimated using ingrowth cores. The ingrowth cores were installed between October 15th and November 27th, 2013, and recovered after two years in late November 2015.