TY  - JOUR
AU  - Niinemets, Ü.
AU  - Arneth, A.
AU  - Kuhn, U.
AU  - Monson, R.K.
AU  - Penuelas, J.
AU  - Staudt, M.
TI  - The emission factor of volatile isoprenoids: stress, acclimation, and developmental responses
JO  - Biogeosciences
VL  - 7
SN  - 1726-4170
CY  - Katlenburg-Lindau [u.a.]
PB  - Copernicus
M1  - PreJuSER-13334
SP  - 2203 - 2223
PY  - 2010
N1  - The authors' studies on BVOC emissions have been funded by the Estonian Ministry of Education and Research (grant SF1090065s07), the Estonian Science Foundation (grant 7645), the US National Science Foundation and the US Environmental Protection Agency, the joint collaborative project between Spanish CSIC and the Estonian Academy of Sciences, the Spanish Government (grants CGL2006-04025/BOS and Consolider-Ingenio Montes CSD2008-00040), the Catalan government (grant SGR2009-458), the Human Frontier Science Programme, the Swedish Research Councils VR and Formas. Alex Guenther, Peter Harley, Paolo Ciccioli, Trevor Keenan, Jurgen Kesselmeier and Manuel Lerdau provided invaluable comments and criticism on the earlier versions of this manuscript.
AB  - The rate of constitutive isoprenoid emissions from plants is driven by plant emission capacity under specified environmental conditions (E-S, the emission factor) and by responsiveness of the emissions to instantaneous variations in environment. In models of isoprenoid emission, E-S has been often considered as intrinsic species-specific constant invariable in time and space. Here we analyze the variations in species-specific values of E-S under field conditions focusing on abiotic stresses, past environmental conditions and developmental processes. The reviewed studies highlight strong stress-driven, adaptive (previous temperature and light environment and growth CO2 concentration) and developmental (leaf age) variations in E-S values operating at medium to long time scales. These biological factors can alter species-specific E-S values by more than an order of magnitude. While the majority of models based on early concepts still ignore these important sources of variation, recent models are including some of the medium- to long-term controls. However, conceptually different strategies are being used for incorporation of these longer-term controls with important practical implications for parameterization and application of these models. This analysis emphasizes the need to include more biological realism in the isoprenoid emission models and also highlights the gaps in knowledge that require further experimental work to reduce the model uncertainties associated with biological sources of variation.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000280515300013
DO  - DOI:10.5194/bg-7-2203-2010
UR  - https://juser.fz-juelich.de/record/13334
ER  -