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TZID:Europe/Berlin
TZUNTIL:20111030T010000Z
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DTSTART:20091025T030000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
RDATE:20101031T030000
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DTSTART:20090329T020000
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DTSTAMP:20260820T044412Z
DESCRIPTION:During the last decades knowledge significantly improved concer
 ning lipidic compounds in the environment. However\, some of the key proce
 sses remain still unknown and underestimated. As well known\, lipids as ma
 in components of plants can be strongly influenced by a changing environme
 nt as their biosynthesis occurs very fast. While most effects are not sust
 ainable\, long term changes like rising CO2 concentration\, drought\, and 
 others might significantly influence lipid composition in plants as well a
 s incorporation and preservation of lipids in soils. Depending on their ch
 emism\, a part of lipidic compounds is known to be of a higher recalcitran
 ce in soil than bulk organic carbon. However\, the knowledge concerning th
 e incorporation mechanisms of plant derived lipids in soils is still limit
 ed. Commonly they are regarded to be mainly incorporated into soils by lit
 terfall. While for bulk organic carbon the belowground allocation of carbo
 n is well known\, this incorporation pathway is frequently ignored and und
 erestimated for lipids. An additional incorporation pathway might be via a
 eolian deposition of dust of abraised plant waxes and fossil fuels includi
 ng coal dust. In some soils charred biomass remaining after fires might co
 ntribute a major part to the soil lipid pool. The main challenges of ongoi
 ng research on lipids in the environment will be to elucidate the environm
 ental effects on the lipidic proportions of plants and to determine the in
 corporation and preservation mechanisms relevant for lipids in soils.
DTSTART;TZID=Europe/Berlin:20091210T161500
DTEND;TZID=Europe/Berlin:20091210T174500
LOCATION:H6
SUMMARY:Dr. Guido Wiesenberg\, University of Bayreuth\, Department for Agro
 ecosystem Research: Lipids in plants and soils: New insights and challenge
 s regarding formation\, incorporation and turnover
TRANSP:TRANSPARENT
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