Determinants of legacy effects in pine trees - implications from an irrigation-stop experiment

Näytä kaikki kuvailutiedot



Pysyväisosoite

http://hdl.handle.net/10138/320885

Lähdeviite

Zweifel , R , Etzold , S , Sterck , F , Gessler , A , Anfodillo , T , Mencuccini , M , von Arx , G , Lazzarin , M , Haeni , M , Feichtinger , L , Meusburger , K , Knuesel , S , Walthert , L , Salmon , Y , Bose , A K , Schoenbeck , L , Hug , C , De Girardi , N , Giuggiola , A , Schaub , M & Rigling , A 2020 , ' Determinants of legacy effects in pine trees - implications from an irrigation-stop experiment ' , New Phytologist , vol. 227 , no. 4 , pp. 1081-1096 . https://doi.org/10.1111/nph.16582

Julkaisun nimi: Determinants of legacy effects in pine trees - implications from an irrigation-stop experiment
Tekijä: Zweifel, Roman; Etzold, Sophia; Sterck, Frank; Gessler, Arthur; Anfodillo, Tommaso; Mencuccini, Maurizio; von Arx, Georg; Lazzarin, Martina; Haeni, Matthias; Feichtinger, Linda; Meusburger, Katrin; Knuesel, Simon; Walthert, Lorenz; Salmon, Yann; Bose, Arun K.; Schoenbeck, Leonie; Hug, Christian; De Girardi, Nicolas; Giuggiola, Arnaud; Schaub, Marcus; Rigling, Andreas
Tekijän organisaatio: INAR Physics
Micrometeorology and biogeochemical cycles
Ecosystem processes (INAR Forest Sciences)
Viikki Plant Science Centre (ViPS)
Päiväys: 2020-08
Kieli: eng
Sivumäärä: 16
Kuuluu julkaisusarjaan: New Phytologist
ISSN: 0028-646X
DOI-tunniste: https://doi.org/10.1111/nph.16582
URI: http://hdl.handle.net/10138/320885
Tiivistelmä: Tree responses to altered water availability range from immediate (e.g. stomatal regulation) to delayed (e.g. crown size adjustment). The interplay of the different response times and processes, and their effects on long-term whole-tree performance, however, is hardly understood. Here we investigated legacy effects on structures and functions of mature Scots pine in a dry inner-Alpine Swiss valley after stopping an 11-yr lasting irrigation treatment. Measured ecophysiological time series were analysed and interpreted with a system-analytic tree model. We found that the irrigation stop led to a cascade of downregulations of physiological and morphological processes with different response times. Biophysical processes responded within days, whereas needle and shoot lengths, crown transparency, and radial stem growth reached control levels after up to 4 yr only. Modelling suggested that organ and carbon reserve turnover rates play a key role for a tree's responsiveness to environmental changes. Needle turnover rate was found to be most important to accurately model stem growth dynamics. We conclude that leaf area and its adjustment time to new conditions is the main determinant for radial stem growth of pine trees as the transpiring area needs to be supported by a proportional amount of sapwood, despite the growth-inhibiting environmental conditions.
Avainsanat: 1181 Ecology, evolutionary biology
4112 Forestry
cambial activity
drought stress
ecological memory
irrigation experiment
osmoregulation
point dendrometer
radial stem growth
TreeNet
PLANT
SYLVESTRIS
DROUGHT
ALLOCATION
NONSTRUCTURAL CARBON
RESPONSES
SCOTS PINE
ROOTS
RADIAL GROWTH
WATER RELATIONS
Vertaisarvioitu: Kyllä
Tekijänoikeustiedot: cc_by
Pääsyrajoitteet: openAccess
Rinnakkaistallennettu versio: acceptedVersion


Tiedostot

Latausmäärä yhteensä: Ladataan...

Tiedosto(t) Koko Formaatti Näytä
nph.16582.pdf 39.08MB PDF Avaa tiedosto
nph.16582.pdf 3.243MB PDF Avaa tiedosto

Viite kuuluu kokoelmiin:

Näytä kaikki kuvailutiedot