@article{8af18d03cc774335b898c41375a097d0,
title = "Whole-tree nonstructural carbohydrate storage and seasonal dynamics in five temperate species",
abstract = "Despite the importance of nonstructural carbohydrates (NSC) for growth and survival in woody plants, we know little about whole-tree NSC storage. The conventional theory suggests that NSC reserves will increase over the growing season and decrease over the dormant season. Here, we compare storage in five temperate tree species to determine the size and seasonal fluctuation of whole-tree total NSC pools as well as the contribution of individual organs. NSC concentrations in the branches, stemwood, and roots of 24 trees were measured across 12 months. We then scaled up concentrations to the whole-tree and ecosystem levels using allometric equations and forest stand inventory data. While whole-tree total NSC pools followed the conventional theory, sugar pools peaked in the dormant season and starch pools in the growing season. Seasonal depletion of total NSCs was minimal at the whole-tree level, but substantial at the organ level, particularly in branches. Surprisingly, roots were not the major storage organ as branches stored comparable amounts of starch throughout the year, and root reserves were not used to support springtime growth. Scaling up NSC concentrations to the ecosystem level, we find that commonly used, process-based ecosystem and land surface models all overpredict NSC storage.",
keywords = "Harvard Forest, carbon allocation, carbon balance, nonstructural carbohydrates (NSCs), temperate trees, whole-tree NSC storage",
author = "Furze, {Morgan E.} and Huggett, {Brett A.} and Aubrecht, {Donald M.} and Stolz, {Claire D.} and Carbone, {Mariah S.} and Richardson, {Andrew D.}",
note = "Funding Information: This work was supported by the National Science Foundation Graduate Research Fellowship under grant no. DGE-1144152 and the Garden Club of New Jersey. ADR acknowledges additional support for research at Harvard Forest from the National Science Foundation{\textquoteright}s LTER program (DEB-1237491). This material is based upon work supported by the US Department of Energy{\textquoteright}s Office of Science, Office of Biological and Environmental Research. A special thank you is extended to Meghan Blum-stein for her support throughout this project, an interuniversity undergraduate crew, including Molly Wieringa, Elizabeth Rao, and Andy Bayliss, for their tremendous work in the laboratory, and Harvard{\textquoteright}s IQSS for their statistical support services. Trevor Keenan and Andy Fox provided model output for Harvard Forest. Funding Information: This work was supported by the National Science Foundation Graduate Research Fellowship under grant no. DGE-1144152 and the Garden Club of New Jersey. ADR acknowledges additional support for research at Harvard Forest from the National Science Foundation's LTER program (DEB-1237491). This material is based upon work supported by the US Department of Energy's Office of Science, Office of Biological and Environmental Research. A special thank you is extended to Meghan Blumstein for her support throughout this project, an interuniversity undergraduate crew, including Molly Wieringa, Elizabeth Rao, and Andy Bayliss, for their tremendous work in the laboratory, and Harvard's IQSS for their statistical support services. Trevor Keenan and Andy Fox provided model output for Harvard Forest. Publisher Copyright: {\textcopyright} 2018 The Authors New Phytologist {\textcopyright} 2018 New Phytologist Trust",
year = "2019",
month = feb,
day = "1",
doi = "10.1111/nph.15462",
language = "English (US)",
volume = "221",
pages = "1466--1477",
journal = "New Phytologist",
issn = "0028-646X",
publisher = "Wiley-Blackwell",
number = "3",
}