Western News: Tree chambers allowing scientists to bring heat

Western News: Tree chambers allowing scientists to bring heat



so right now we have eucalyptus permit Ensis which is a Parramatta red gum so we're testing whether this threatened species can cope with 3 degrees of warming so behind me we have one of the whole tree chambers that we have here at Western Sydney where we have a tree rooted in soil in a chamber that's nine meters tall where we're controlling the temperature the co2 concentration and the humidity at the same time we can measure how much carbon it's taking up through photosynthesis and how much water it's losing through transpiration so one of the really interesting things that we find is that these trees can change their physiology in response to warming they are dynamically adjusting their expression of genes and changing protein concentrations to fine tune their growth to their environment so this is one of the trees that has been exposed to 3 degrees of warming and during the winter and they're injuring the spring it is grown faster with warming but we're concerned about how it will cope with heat waves of the future three degrees of additional warming when it's already 38 and there's pushing the trees beyond 40 seems to have a negative effect on their growth trees have an enormous impact on our climate and tree growth and carbon sequestration is already solving a part of our climate problem for us and we really need to understand if this enormous service that trees are giving us will continue into the future

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