Nitrogen limitation constrains sustainability of ecosystem response to CO2

Nature
Peter B ReichJared Trost

Abstract

Enhanced plant biomass accumulation in response to elevated atmospheric CO2 concentration could dampen the future rate of increase in CO2 levels and associated climate warming. However, it is unknown whether CO2-induced stimulation of plant growth and biomass accumulation will be sustained or whether limited nitrogen (N) availability constrains greater plant growth in a CO2-enriched world. Here we show, after a six-year field study of perennial grassland species grown under ambient and elevated levels of CO2 and N, that low availability of N progressively suppresses the positive response of plant biomass to elevated CO2. Initially, the stimulation of total plant biomass by elevated CO2 was no greater at enriched than at ambient N supply. After four to six years, however, elevated CO2 stimulated plant biomass much less under ambient than enriched N supply. This response was consistent with the temporally divergent effects of elevated CO2 on soil and plant N dynamics at differing levels of N supply. Our results indicate that variability in availability of soil N and deposition of atmospheric N are both likely to influence the response of plant biomass accumulation to elevated atmospheric CO2. Given that limitations to productivit...Continue Reading

References

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Dec 10, 2002·Science·M Rebecca ShawChristopher B Field
Dec 4, 2003·Science·Bruce A HungateChristopher B Field
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Jun 29, 2004·Proceedings of the National Academy of Sciences of the United States of America·Peter B ReichJared Trost

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Citations

Oct 18, 2012·Applied Microbiology and Biotechnology·D K Choudhary
Dec 7, 2010·Plant Cell Reports·Takushi Hachiya, Ko Noguchi
Oct 27, 2010·Proceedings of the National Academy of Sciences of the United States of America·Richard J NorbyRoss E McMurtrie
Apr 12, 2013·Proceedings of the National Academy of Sciences of the United States of America·Nico EisenhauerPeter B Reich
Jun 24, 2010·Tree Physiology·Martin LukacFrancesco Loreto
May 29, 2013·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·S Zaehle
May 31, 2008·Science·Thomas H DeLucaMarie-Charlotte Nilsson
May 5, 2012·Science·Peter B ReichNico Eisenhauer
Oct 14, 2010·MBio·Jizhong ZhouXiaoyang Zhi
May 1, 2008·Annual Review of Plant Biology·Louise E JacksonTimothy R Cavagnaro
May 31, 2013·BMC Microbiology·Meiying XuJizhong Zhou
Mar 21, 2009·PloS One·Just CebrianWilliam F Fagan
Jul 27, 2010·PloS One·Lucas C R SilvaMark D Leithead
Jul 27, 2010·PloS One·Marion LiberlooReinhart Ceulemans
Jun 21, 2011·PloS One·Audrey NiboyetBruce A Hungate
Jul 21, 2012·PloS One·Claudio de Sassi, Jason M Tylianakis
Apr 18, 2013·PloS One·John K SeniorJoseph K Bailey
Nov 22, 2007·Ecology·Donald R ZakKurt S Pregitzer
Apr 5, 2012·Ecological Applications : a Publication of the Ecological Society of America·Chaoqun LuChi Zhang
May 16, 2007·Proceedings of the National Academy of Sciences of the United States of America·Benjamin Z HoultonLars O Hedin
Jun 5, 2014·Environmental Monitoring and Assessment·Raúl Ochoa-HuesoEsteban Manrique
Jul 17, 2014·Applied Microbiology and Biotechnology·Gaidi RenZhongjun Jia

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