@article{fdi:010046279,
  title = {{D}rought reduced monoterpene emissions from the evergreen {M}editerranean oak {Q}uercus ilex : results from a throughfall displacement experiment},
  author = {{L}avoir, {A}. {V}. and {S}taudt, {M}. and {S}chnitzler, {J}. {P}. and {L}andais, {D}. and {M}assol, {F}. and {R}ocheteau, {A}lain and {R}odriguez, {R}. and {Z}immer, {I}. and {R}ambal, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he effects of water limitations on the emission of biogenic volatile organic compounds are not well understood. {E}xperimental approaches studying drought effects in natural conditions are still missing. {T}o address this question, a throughfall displacement experiment was set up in a natural forest of {Q}uercus ilex, an evergreen {M}editerranean oak emitting monoterpenes. {M}ature trees were exposed in 2005 and 2006 either to an additional drought, to irrigation or to natural drought (untreated control). {I}n both years, absolute monoterpene emission rates as well as the respective standard factors of the trees exposed to normal and additional drought strongly declined during the drought periods. {M}onoterpene emissions were lower in year 2006 than in year 2005 (factor 2) due to a more pronounced summer drought period in this respective year. {W}e observed a significant difference between the irrigation and additional drought or control treatment: irrigated trees emitted 82% more monoterpenes during the drought period 2006 than the trees of the other treatments. {H}owever, no significant effect on monoterpene emission was observed between normal and additional drought treatments, despite a significant effect on leaf water potential and photochemical efficiency. {D}uring the development of drought, monoterpene emissions responded exponentially rather than linearly to decreasing leaf water potential. {E}missions rapidly declined when the water potential dropped below -2 {MP}a and photosynthesis was persistently inhibited. {M}onoterpene synthase activities measured in vitro showed no clear reduction during the same period. {F}rom our results we conclude that drought significantly reduces monoterpene fluxes of {M}editerranean {H}olm oak forest into the atmosphere due to a lack of primary substrates coming from photosynthetic processes.},
  keywords = {},
  booktitle = {},
  journal = {{B}iogeosciences},
  volume = {6},
  numero = {7},
  pages = {1167--1180},
  ISSN = {1726-4170},
  year = {2009},
  URL = {https://www.documentation.ird.fr/hor/fdi:010046279},
}