BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//www.bayceer.uni-bayreuth.de//NONSGML kigkonsult.se iCalcreator 2.41.92//
CALSCALE:GREGORIAN
METHOD:PUBLISH
UID:62626436-6237-4261-a236-383666346533
X-WR-CALNAME:BayCMS-Export
X-WR-CALDESC:This is a calendar exported from BayCMS
X-WR-TIMEZONE:Europe/Berlin
BEGIN:VTIMEZONE
TZID:Europe/Berlin
TZUNTIL:20221030T010000Z
BEGIN:STANDARD
TZNAME:CET
DTSTART:20201025T030000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
RDATE:20211031T030000
END:STANDARD
BEGIN:DAYLIGHT
TZNAME:CEST
DTSTART:20200329T020000
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
RDATE:20210328T020000
RDATE:20220327T020000
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VEVENT
UID:www.bayceer.uni-bayreuth.de-bayceer-t154781id
DTSTAMP:20260812T191028Z
DESCRIPTION:Climate warming and increased nitrogen deposition are inducing 
 an advance of the Subarctic treeline. Yet\, also outbreaks of foliage-feed
 ing geometrid moths became more frequent over the past decades\, often res
 ulting in forest dieback. This calls for a better understanding of the rol
 e of living\, dead\, or absent trees in soil organic carbon (SOC) cycling.
 \nIt has been shown in several studies that living trees may deplete SOC s
 tocks in comparison with treeless tundra despite C input via litter and ro
 ots. This may be explained by a phenomenon termed &ldquo\;priming effect&r
 dquo\;: labile C supply from root exudates or fresh litter stimulates micr
 obial decomposition of soil organic matter (SOM). It is assumed that micro
 bes increasingly decompose SOM in order to acquire N from it (&ldquo\;micr
 obial N-mining&rdquo\;)\, which may be relevant especially in N poor soils
  like in the Subarctic. Reversing this finding\, it may be speculated that
  forest dieback caused by moth outbreaks induces an increase of SOC stocks
  when root exudation and plant N demand decrease and decomposing wood is r
 eturned to the soil.\nI will present results from two studies related to t
 he effect of trees and nitrogen availability in the Subarctic. The first i
 s a field study\, in which we investigated SOC stocks and biochemical soil
  properties under living trees\, treeless tundra\, and under trees that di
 ed 12 and 55 years ago during moth outbreaks. The second study is a greenh
 ouse experiment\, in which we investigated SOC turnover in the presence an
 d absence of a tree with or without nitrogen addition.\n&nbsp\;\n***\n- ne
 w member in BayCEER -
DTSTART;TZID=Europe/Berlin:20210121T121500
DTEND;TZID=Europe/Berlin:20210121T134500
SUMMARY:Nele MeyerDr. Nele Meyer\, Soil Ecology / BayCEER\, University of B
 ayreuth (Homepage): The impact of trees on soil organic carbon dynamics in
  the Subarctic - Priming effects and microbial N mining
TRANSP:TRANSPARENT
END:VEVENT
END:VCALENDAR