Effects of variable temperature and moisture conditions on respiration and nonstructural carbohydrate dynamics of tree roots

Kira Ryhti,Pauliina Schiestl-Aalto,Yu Tang,Katja T. Rinne-Garmston,Yiyang Ding,Jukka Pumpanen,Christina Biasi,Matthias Saurer,Jaana Bäck,Liisa Kulmala

Agricultural and Forest Meteorology（2022）

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摘要

•Low soil moisture lowered the root respiration rate of boreal Scots pines.Root respiration was clearly higher in warm and dry than cool and moist year.•Root respiration peaked after the aboveground growth began to decrease.•The root fructose and glucose contents correlated negatively with soil moisture.The method used to determine root respiration should be selected carefully.

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关键词

Root respiration,CO2,NSC,Soil moisture,Boreal forest,Pinus sylvestris

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