Warming-related increases in soil CO2 efflux are explained by increased below-ground carbon flux (Record no. 50336)

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control field MX-MdCICY
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control field 20250625160146.0
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Transcribing agency CICY
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Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-16162
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Title Warming-related increases in soil CO2 efflux are explained by increased below-ground carbon flux
490 0# - SERIES STATEMENT
Volume/sequential designation Nature Climate Change, 4(9), p.822-827, 2014
520 3# - SUMMARY, ETC.
Summary, etc. The universally observed exponential increase in soil-surface CO 2 efflux ('soil respiration'; F S)with increasing temperature has led to speculation that global warming will accelerate soil-organic-carbon (SOC)decomposition, reduce SOC storage, and drive a positive feedback to future warming. However, interpreting temperature-F S relationships, and so modelling terrestrial carbon balance in a warmer world, is complicated by the many sources of respired carbon that contribute to F S (ref.)and a poor understanding of how temperature influences SOC decomposition rates. Here we quantified F S, litterfall, bulk SOC and SOC fraction size and turnover, and total below-ground carbon flux (TBCF)across a highly constrained 5.2 °C mean annual temperature (MAT)gradient in tropical montane wet forest. From these, we determined that: increases in TBCF and litterfall explain >90 percent of the increase in F S with MAT; bulk SOC and SOC fraction size and turnover rate do not vary with MAT; and increases in TBCF and litterfall do not influence SOC storage or turnover on century to millennial timescales. This gradient study shows that for tropical montane wet forest, long-term and whole-ecosystem warming accelerates below-ground carbon processes with no apparent impact on SOC storage.
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element CARBON FLUX
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Giardina, C.P.
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Personal name Litton, C.M.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Crow, S.E.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Asner, G.P.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1yqdOT35x5QHtqXZZmkWBtHbYuIEaaudE/view?usp=drivesdk">https://drive.google.com/file/d/1yqdOT35x5QHtqXZZmkWBtHbYuIEaaudE/view?usp=drivesdk</a>
Public note Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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Source of classification or shelving scheme Clasificación local
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-16162 25.06.2025 25.06.2025 Documentos solicitados