Disentangling carbon uptake and allocation in the stems of a spruce forest

Disentangling carbon uptake and allocation in the stems of a spruce forest. Krejza, J., Haeni, M., Darenova, E., Foltýnová, L., Fajstavr, M., Jan Světlík, Nezval, O., Bednář, P., Šigut, L., Horáček, P., & Zweifel, R. Environmental and Experimental Botany, 196:104787, 2022.

Paper doi abstract bibtex

Although forests store significant amounts of carbon in tree stems, the extent to which stem growth depends on carbon assimilation and environmental factors is poorly understood. In this study, gross primary productivity (GPP) and net ecosystem productivity (NEP) are compared for the first time at daily resolution with stem carbon allocation (SCA) in a spruce forest. We found substantial differences in the seasonal patterns of all variables as a function of environmental conditions, leading to three important findings. First, carbon uptake was only marginally invested in wood growth during the first half of the growing season. This means that there were other priorities for carbon allocation than stem growth at this time of year. Second, our results show that SRI at the beginning of the stem growth period, which mainly involves cell division and expansion, is a process that requires less carbon than the process of xylem lignification and thickening that follows. And third, NEP was generally less sensitive to drought than SCA. This suggests that the carbon uptake balance is less sensitive to dry periods than growth, particularly because the carbon uptake period is much longer than the growth window. These results may change the way we perceive the effects of climate change on forests, as tree carbon dynamics are primarily explained by the seasonal timing of dry periods rather than the intensity of these events.

@Article{KREJZA2022104787,
  author   = {Krejza, Jan and Haeni, Matthias and Darenova, Eva and Folt{\'{y}}nov{\'{a}}, Lenka and Fajstavr, Marek and {Jan Sv{\v{e}}tl{\'{i}}k} and Nezval, Ondřej and Bedn{\'{a}}ř, Pavel and {\v{S}}igut, Ladislav and Hor{\'{a}}{\v{c}}ek, Petr and Zweifel, Roman},
  journal  = {Environmental and Experimental Botany},
  title    = {{Disentangling carbon uptake and allocation in the stems of a spruce forest}},
  year     = {2022},
  issn     = {0098-8472},
  pages    = {104787},
  volume   = {196},
  abstract = {Although forests store significant amounts of carbon in tree stems, the extent to which stem growth depends on carbon assimilation and environmental factors is poorly understood. In this study, gross primary productivity (GPP) and net ecosystem productivity (NEP) are compared for the first time at daily resolution with stem carbon allocation (SCA) in a spruce forest. We found substantial differences in the seasonal patterns of all variables as a function of environmental conditions, leading to three important findings. First, carbon uptake was only marginally invested in wood growth during the first half of the growing season. This means that there were other priorities for carbon allocation than stem growth at this time of year. Second, our results show that SRI at the beginning of the stem growth period, which mainly involves cell division and expansion, is a process that requires less carbon than the process of xylem lignification and thickening that follows. And third, NEP was generally less sensitive to drought than SCA. This suggests that the carbon uptake balance is less sensitive to dry periods than growth, particularly because the carbon uptake period is much longer than the growth window. These results may change the way we perceive the effects of climate change on forests, as tree carbon dynamics are primarily explained by the seasonal timing of dry periods rather than the intensity of these events.},
  doi      = {https://doi.org/10.1016/j.envexpbot.2022.104787},
  keywords = {, Carbon flux, Dendrometer, Drought stress, Eddy covariance, Forest inventory, Partitioning, Stem radial increment, Tree ring, Wood formation, Xylogenesis,Carbon balance},
  url      = {https://www.sciencedirect.com/science/article/pii/S0098847222000090},
}

Downloads: 0

{"_id":"AtBnEq6RgqNgdsxGi","bibbaseid":"krejza-haeni-darenova-foltnov-fajstavr-jansvtlik-nezval-bedn-etal-disentanglingcarbonuptakeandallocationinthestemsofaspruceforest-2022","author_short":["Krejza, J.","Haeni, M.","Darenova, E.","Foltýnová, L.","Fajstavr, M.","Jan Světlík","Nezval, O.","Bednář, P.","Šigut, L.","Horáček, P.","Zweifel, R."],"bibdata":{"bibtype":"article","type":"article","author":[{"propositions":[],"lastnames":["Krejza"],"firstnames":["Jan"],"suffixes":[]},{"propositions":[],"lastnames":["Haeni"],"firstnames":["Matthias"],"suffixes":[]},{"propositions":[],"lastnames":["Darenova"],"firstnames":["Eva"],"suffixes":[]},{"propositions":[],"lastnames":["Foltýnová"],"firstnames":["Lenka"],"suffixes":[]},{"propositions":[],"lastnames":["Fajstavr"],"firstnames":["Marek"],"suffixes":[]},{"firstnames":[],"propositions":[],"lastnames":["Jan Světlík"],"suffixes":[]},{"propositions":[],"lastnames":["Nezval"],"firstnames":["Ondřej"],"suffixes":[]},{"propositions":[],"lastnames":["Bednář"],"firstnames":["Pavel"],"suffixes":[]},{"propositions":[],"lastnames":["Šigut"],"firstnames":["Ladislav"],"suffixes":[]},{"propositions":[],"lastnames":["Horáček"],"firstnames":["Petr"],"suffixes":[]},{"propositions":[],"lastnames":["Zweifel"],"firstnames":["Roman"],"suffixes":[]}],"journal":"Environmental and Experimental Botany","title":"Disentangling carbon uptake and allocation in the stems of a spruce forest","year":"2022","issn":"0098-8472","pages":"104787","volume":"196","abstract":"Although forests store significant amounts of carbon in tree stems, the extent to which stem growth depends on carbon assimilation and environmental factors is poorly understood. In this study, gross primary productivity (GPP) and net ecosystem productivity (NEP) are compared for the first time at daily resolution with stem carbon allocation (SCA) in a spruce forest. We found substantial differences in the seasonal patterns of all variables as a function of environmental conditions, leading to three important findings. First, carbon uptake was only marginally invested in wood growth during the first half of the growing season. This means that there were other priorities for carbon allocation than stem growth at this time of year. Second, our results show that SRI at the beginning of the stem growth period, which mainly involves cell division and expansion, is a process that requires less carbon than the process of xylem lignification and thickening that follows. And third, NEP was generally less sensitive to drought than SCA. This suggests that the carbon uptake balance is less sensitive to dry periods than growth, particularly because the carbon uptake period is much longer than the growth window. These results may change the way we perceive the effects of climate change on forests, as tree carbon dynamics are primarily explained by the seasonal timing of dry periods rather than the intensity of these events.","doi":"https://doi.org/10.1016/j.envexpbot.2022.104787","keywords":", Carbon flux, Dendrometer, Drought stress, Eddy covariance, Forest inventory, Partitioning, Stem radial increment, Tree ring, Wood formation, Xylogenesis,Carbon balance","url":"https://www.sciencedirect.com/science/article/pii/S0098847222000090","bibtex":"@Article{KREJZA2022104787,\n author = {Krejza, Jan and Haeni, Matthias and Darenova, Eva and Folt{\\'{y}}nov{\\'{a}}, Lenka and Fajstavr, Marek and {Jan Sv{\\v{e}}tl{\\'{i}}k} and Nezval, Ondřej and Bedn{\\'{a}}ř, Pavel and {\\v{S}}igut, Ladislav and Hor{\\'{a}}{\\v{c}}ek, Petr and Zweifel, Roman},\n journal = {Environmental and Experimental Botany},\n title = {{Disentangling carbon uptake and allocation in the stems of a spruce forest}},\n year = {2022},\n issn = {0098-8472},\n pages = {104787},\n volume = {196},\n abstract = {Although forests store significant amounts of carbon in tree stems, the extent to which stem growth depends on carbon assimilation and environmental factors is poorly understood. In this study, gross primary productivity (GPP) and net ecosystem productivity (NEP) are compared for the first time at daily resolution with stem carbon allocation (SCA) in a spruce forest. We found substantial differences in the seasonal patterns of all variables as a function of environmental conditions, leading to three important findings. First, carbon uptake was only marginally invested in wood growth during the first half of the growing season. This means that there were other priorities for carbon allocation than stem growth at this time of year. Second, our results show that SRI at the beginning of the stem growth period, which mainly involves cell division and expansion, is a process that requires less carbon than the process of xylem lignification and thickening that follows. And third, NEP was generally less sensitive to drought than SCA. This suggests that the carbon uptake balance is less sensitive to dry periods than growth, particularly because the carbon uptake period is much longer than the growth window. These results may change the way we perceive the effects of climate change on forests, as tree carbon dynamics are primarily explained by the seasonal timing of dry periods rather than the intensity of these events.},\n doi = {https://doi.org/10.1016/j.envexpbot.2022.104787},\n keywords = {, Carbon flux, Dendrometer, Drought stress, Eddy covariance, Forest inventory, Partitioning, Stem radial increment, Tree ring, Wood formation, Xylogenesis,Carbon balance},\n url = {https://www.sciencedirect.com/science/article/pii/S0098847222000090},\n}\n\n","author_short":["Krejza, J.","Haeni, M.","Darenova, E.","Foltýnová, L.","Fajstavr, M.","Jan Světlík","Nezval, O.","Bednář, P.","Šigut, L.","Horáček, P.","Zweifel, R."],"key":"KREJZA2022104787","id":"KREJZA2022104787","bibbaseid":"krejza-haeni-darenova-foltnov-fajstavr-jansvtlik-nezval-bedn-etal-disentanglingcarbonuptakeandallocationinthestemsofaspruceforest-2022","role":"author","urls":{"Paper":"https://www.sciencedirect.com/science/article/pii/S0098847222000090"},"keyword":["","Carbon flux","Dendrometer","Drought stress","Eddy covariance","Forest inventory","Partitioning","Stem radial increment","Tree ring","Wood formation","Xylogenesis","Carbon balance"],"metadata":{"authorlinks":{}}},"bibtype":"article","biburl":"https://bibbase.org/network/files/TLd3uikK9J7eo5bBg","dataSources":["7X9iNW8s2TZStjYhZ","WQfw4bbzH25i62GQc"],"keywords":["","carbon flux","dendrometer","drought stress","eddy covariance","forest inventory","partitioning","stem radial increment","tree ring","wood formation","xylogenesis","carbon balance"],"search_terms":["disentangling","carbon","uptake","allocation","stems","spruce","forest","krejza","haeni","darenova","foltýnová","fajstavr","jan světlík","nezval","bednář","šigut","horáček","zweifel"],"title":"Disentangling carbon uptake and allocation in the stems of a spruce forest","year":2022}