Relocation of carbon from decomposition of {sup 14}C-labelled needle and fine root litter in peat soil Domish, T; Laine, J; Laiho, R [Helsinki Univ. (Finland). Dept. of Forest Ecology]; Finer, L [Finnish Forest Research Inst. (Finland). Joensuu Research Station]; Karsisto, M [Finnish Forest Research Inst. (Finland). Dept. of Forest Ecology] 54 ENVIRONMENTAL SCIENCES; WETLANDS; ROOTS; FOREST LITTER; CARBON CYCLE; PEAT; SOILS; PINES Drainage of peatlands promotes a shift of biomass and production from the ground vegetation to the trees. Thus, the above-ground (e.g. needles) and below-ground (roots) litter production of trees increases. Fine roots in particular are an important factor in the carbon and nutrient cycle in forest ecosystems. A major part of the annual net primary production of trees may be allocated below ground, the relative proportion being smaller on fertile sites than on less fertile ones. For modelling the carbon balance of drained peatlands, it is important to know the fate of carbon from newly introduced and decomposing litter. Newly added and fertilised tree litter material may be decomposed at a rate different than litter from the ground vegetation. The objectives of this study are to study the pathways of decomposing litter carbon in peat soil and to evaluate the use of the litterbag method in a controlled environment. (9 refs.) Academy of Finland, Helsinki (Finland) OSTI as DE97736336 Finland 1997-12-31 English Conference Conference: International workshop on northern peatlands in global climatic change, Hyytiaelae (Finland), 8-12 Oct 1995; Other Information: DN: SILMU Research Programme; PBD: 1996; Related Information: Is Part Of Northern peatlands in global climatic change; Laiho, R.; Laine, J.; Vasander, H. [eds.] [Helsinki Univ. (Finland). Dept. of Forest Ecology]; PB: 302 p. Medium: ED; Size: pp. 33-39 https://doi.org/ ON: DE97736336; ISBN 951-37-1865-4 [] SA-PUB-1/96; CONF-9510430- Other: ON: DE97736336; ISBN 951-37-1865-4; TRN: FI9703199 FI; SCA: 540220; 540120; PA: FI-97:003199; EDB-97:057325; SN: 97001761938 2018-06-27 458158 https://www.osti.gov/etdeweb/servlets/purl/458158