TY - JOUR
T1 - Accelerating net terrestrial carbon uptake during the warming hiatus due to reduced respiration
AU - Ballantyne, Ashley
AU - Smith, William
AU - Anderegg, William
AU - Kauppi, Pekka
AU - Sarmiento, Jorge Louis
AU - Tans, Pieter
AU - Shevliakova, Elena
AU - Pan, Yude
AU - Poulter, Benjamin
AU - Anav, Alessandro
AU - Friedlingstein, Pierre
AU - Houghton, Richard
AU - Running, Steven
N1 - Funding Information:
This work was stimulated by a workshop on abrupt changes in the global carbon cycle sponsored by Princeton University and the The Finnish Society of Sciences and Letters. Further support for this research was provided by NSF-DEB no. 1550932 and USDA no. MONZ-1302.W.R.L.A. was supported by a NOAA global change fellowship andW.K.S. was supported by a Luc Homan Fellowship. Satellite observations and MOD-17 algorithm development were supported by NASA grant NNX08AG87A to S.W.R.We are also grateful to the global citizens and NOAA scientists who have helped maintain the global atmospheric CO2 observation network. This work was greatly improved through input from colleagues D. Lombardozzi and B. Sullivan.
Publisher Copyright:
© 2017 Macmillan Publishers Limited, part of Springer Nature. All rights reserved.
PY - 2017/2/1
Y1 - 2017/2/1
N2 - The recent â € warming hiatus' presents an excellent opportunity to investigate climate sensitivity of carbon cycle processes. Here we combine satellite and atmospheric observations to show that the rate of net biome productivity (NBP) has significantly accelerated from â '0.007 ± 0.065 PgC yr â '2 over the warming period (1982 to 1998) to 0.119 ± 0.071 PgC yr â '2 over the warming hiatus (1998-2012). This acceleration in NBP is not due to increased primary productivity, but rather reduced respiration that is correlated (r=0.58; P=0.0007) and sensitive (3 = 4.05 to 9.40 PgC yr â '1 per °C) to land temperatures. Global land models do not fully capture this apparent reduced respiration over the warming hiatus; however, an empirical model including soil temperature and moisture observations better captures the reduced respiration.
AB - The recent â € warming hiatus' presents an excellent opportunity to investigate climate sensitivity of carbon cycle processes. Here we combine satellite and atmospheric observations to show that the rate of net biome productivity (NBP) has significantly accelerated from â '0.007 ± 0.065 PgC yr â '2 over the warming period (1982 to 1998) to 0.119 ± 0.071 PgC yr â '2 over the warming hiatus (1998-2012). This acceleration in NBP is not due to increased primary productivity, but rather reduced respiration that is correlated (r=0.58; P=0.0007) and sensitive (3 = 4.05 to 9.40 PgC yr â '1 per °C) to land temperatures. Global land models do not fully capture this apparent reduced respiration over the warming hiatus; however, an empirical model including soil temperature and moisture observations better captures the reduced respiration.
UR - http://www.scopus.com/inward/record.url?scp=85011623243&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85011623243&partnerID=8YFLogxK
U2 - 10.1038/nclimate3204
DO - 10.1038/nclimate3204
M3 - Article
AN - SCOPUS:85011623243
SN - 1758-678X
VL - 7
SP - 148
EP - 152
JO - Nature Climate Change
JF - Nature Climate Change
IS - 2
ER -