Till sidans topp

Sidansvarig: Webbredaktion
Sidan uppdaterades: 2012-09-11 15:12

Tipsa en vän
Utskriftsversion

Impact of elevated carbon… - Göteborgs universitet Till startsida
Webbkarta
Till innehåll Läs mer om hur kakor används på gu.se

Impact of elevated carbon dioxide concentration and temperature on bud burst and shoot growth of boreal Norway spruce

Artikel i vetenskaplig tidskrift
Författare M. Slaney
Göran Wallin
J. Medhurst
S. Linder
Publicerad i Tree Physiology
Volym 27
Nummer/häfte 2
Sidor 301-312
ISSN 0829-318X
Publiceringsår 2007
Publicerad vid Institutionen för växt- och miljövetenskaper
Sidor 301-312
Språk en
Länkar <Go to ISI>://000244496300014
Ämnesord climate change, Picea abies, shoot development, whole-tree chambers, spring phenology, CO2 enrichment, Temperature, Trees
Ämneskategorier Mikrobiologi, Växtproduktion

Sammanfattning

Effects of elevated temperature and atmospheric CO2 concentration ([CO2]) on spring phenology of mature field-grown Norway spruce (Picea abies (L.) Karst.) trees were followed for three years. Twelve whole-tree chambers (WTC) were installed around individual trees and used to expose the trees to a predicted future climate. The predicted climate scenario for the site, in the year 2100, was 700 mu mol mol(-1) [CO2], and an air temperature 3 degrees C higher in summer and 5 degrees C higher in winter, compared with current conditions. Four WTC treatments were imposed using combinations of ambient and elevated [CO2] and temperature. Control trees outside the WTCs were also studied. Bud development and shoot extension were monitored from early spring until the termination of elongation growth. Elevated air temperature hastened both bud development and the initiation and termination of shoot growth by two to three weeks in each study year. Elevated [CO2] had no significant effect on bud development patterns or the length of the shoot growth period. There was a good correlation between temperature sum (day degrees >= 0 degrees C) and shoot elongation, but a precise timing of bud burst could not be derived by using an accumulation of temperature sums.

Sidansvarig: Webbredaktion|Sidan uppdaterades: 2012-09-11
Dela:

På Göteborgs universitet använder vi kakor (cookies) för att webbplatsen ska fungera på ett bra sätt för dig. Genom att surfa vidare godkänner du att vi använder kakor.  Vad är kakor?