TY - JOUR
T1 - Experimental design of multifactor climate change experiments with elevated CO2, warming and drought
T2 - the CLIMAITE project
AU - Mikkelsen, T.N.
AU - Beier, Claus
AU - Jonasson, Sven Evert
AU - Holmstrup, Martin
AU - Schmidt, Inger Kappel
AU - Ambus, Per Lennart
AU - Pilegaard, K.
AU - Michelsen, Anders
AU - Albert, Kristian
AU - Andresen, Louise C.
AU - Arndal, Marie Frost
AU - Bruun, N.
AU - Christensen, S.
AU - Danbæk, S.
AU - Gundersen, Per
AU - Jørgensen, P.
AU - Linden, Leon
AU - Nielsen, Jane Kongstad
AU - Maraldo, Kristine
AU - Priemé, Anders
AU - Riis-Nielsen, Torben
AU - Ro-Poulsen, Helge
AU - Andersen, Karen Stevnbak
AU - Selsted, M.B.
AU - Sørensen, P.
AU - Larsen, Klaus Steenberg
AU - Carter, M.S.
AU - Ibrom, A.
AU - Martinussen, Torben
AU - Miglietta, F.
AU - Sverdrup, H.
N1 - KEYWORDS
ecosystem manipulation • FACE • grassland • heathland
PY - 2008
Y1 - 2008
N2 - 1. Recent findings indicate that the interactions among CO2, temperature and water can be substantial, and that the combined effects on the biological systems of several factors may not be predicted from experiments with one or a few factors. Therefore realistic multifactorial experiments involving a larger set of main factors are needed.2. We describe a new Danish climate change-related field scale experiment, CLIMAITE, in a heath/grassland ecosystem. CLIMAITE is a full factorial combination of elevated CO2, elevated temperature and prolonged summer drought. The manipulations are intended to mimic anticipated major environmental changes at the site by year 2075 as closely as possible. The impacts on ecosystem processes and functioning (at ecophysiological levels, through responses by individuals and communities to ecosystem-level responses) are investigated simultaneously.3. The increase of [CO2] closely corresponds with the scenarios for year 2075, while the warming treatment is at the lower end of the predictions and seems to be the most difficult treatment to increase without unwanted side effects on the other variables. The drought treatment follows predictions of increased frequency of drought periods in summer. The combination of the treatments does not create new unwanted side effects on the treatments relative to the treatments alone.
AB - 1. Recent findings indicate that the interactions among CO2, temperature and water can be substantial, and that the combined effects on the biological systems of several factors may not be predicted from experiments with one or a few factors. Therefore realistic multifactorial experiments involving a larger set of main factors are needed.2. We describe a new Danish climate change-related field scale experiment, CLIMAITE, in a heath/grassland ecosystem. CLIMAITE is a full factorial combination of elevated CO2, elevated temperature and prolonged summer drought. The manipulations are intended to mimic anticipated major environmental changes at the site by year 2075 as closely as possible. The impacts on ecosystem processes and functioning (at ecophysiological levels, through responses by individuals and communities to ecosystem-level responses) are investigated simultaneously.3. The increase of [CO2] closely corresponds with the scenarios for year 2075, while the warming treatment is at the lower end of the predictions and seems to be the most difficult treatment to increase without unwanted side effects on the other variables. The drought treatment follows predictions of increased frequency of drought periods in summer. The combination of the treatments does not create new unwanted side effects on the treatments relative to the treatments alone.
U2 - 10.1111/j.1365-2435.2007.01362.x
DO - 10.1111/j.1365-2435.2007.01362.x
M3 - Journal article
VL - 22
SP - 185
EP - 195
JO - Functional Ecology
JF - Functional Ecology
SN - 0269-8463
IS - 1
ER -