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2016 | 25 | 4 |

Tytuł artykułu

Approaching the truth of the missing carbon sink

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
Numerous efforts in investigating the global carbon balance have concluded that the global CO2 budget cannot be balanced unless a ‘‘missing carbon sink’’ is invoked. Until now there have been considerable uncertainties as to the magnitude of the C-sink in different regions and the contributions of aboveground/underground processes. This study is aimed at presenting a first estimate of the gap between observed soil respiration and its biological components in arid areas that characterize more than 30% of Earth’s total land surface. In the current literature, soil respiration flux is interpreted in the context of an unstated hypothesis that the fluxes were largely determined by underground biological processes. However, the assumption turned out to be incorrect. Negative soil respiration fluxes in unneglectable arid regions implied a gap in our knowledge. The first estimate of the gap between observed soil respiration flux and its biological components in the global arid regions is a beginning at determining the size of the missing C-sink.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

25

Numer

4

Opis fizyczny

p.1799-1802,fig.,ref.

Twórcy

autor
  • State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, China
autor
  • State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, China
autor
  • School of Earth Science, China University of Geosciences, Wuhan, 430074, China
autor
  • Department of Mathematics and Computer Science, Fujian Normal University, Fuqing, 350300, China
autor
  • 1 State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, China
autor
  • Department of Chemistry, Inha University, 100 Inharo, Incheon 402-751, South Korea

Bibliografia

  • 1. Chen X., Wang W.F., Luo G.P., et al. Can soil respiration estimate neglect the contribution of abiotic exchange? Journal of Arid Land, 6 (2), 129, 2014.
  • 2. Inglima I., Alberti G., Bertolini T., et al. Precipitation pulses enhance respiration of Mediterranean ecosystems: the balance between organic and inorganic components of increased soil CO2 efflux. Global Change Biology, 15, 1289, 2009.
  • 3. Kowalski A.S., Serrano -Ortiz P., Janssens I.A., et al. Can flux tower research neglect geochemical CO2 exchange? Agricultural and Forest Meteorology, 148, 1045, 2008.
  • 4. Ma J., Wang Z.Y., Stevenson B.A., et al. An inorganic CO2 diffusion and dissolution process explains negative CO2 fluxes in saline/alkaline soils. Scientific reports, 3, 2025, 2013. PubMed: 23778238.
  • 5. Schimel D.S., Braswell B.H., Holland E.A., et al., Climatic, edaphic, and biotic controls over storage and turnover of carbon in soils. Global Biogeochemical Cycles, 8, 279, 1994.
  • 6. Schimel D.S., House J.I., Hibbard K.A., et al. Recent patterns and mechanisms of carbon exchange by terrestrial ecosystems. Nature, 414, 169, 2001.
  • 7. Tans P.P., Fung I.Y., Takahashi T. Observational constraints on the global atmospheric CO2 budget. Science, 247, 1431, 1990.
  • 8. Wofsy S.C. Where has all the carbon gone? Science, 292, 2261, 2001.
  • 9. Xie J.X., Li Y., Zhai C.X., et al. CO2 absorption by alkaline soils and its implication to the global carbon cycle. Environmental Geology, 56, 953, 2009.
  • 10. Serrano -Ortiz P., Roland M., Sánchez -Moral S., et al. Hidden, abiotic CO2 flows and gaseous reservoirs in the terrestrial carbon cycle: review and perspectives. Agricultural and Forest Meteorology, 150, 321, 2010.
  • 11. Wohlfahrt G., Fenstermaker L.F., Arnone J.A. Large annual net ecosystem CO2 uptake of a Mojave Desert ecosystem. Global Change Biology, 14, 1475, 2008.
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  • 13. Wang W.F., Chen X., Luo G.P., et al. Modeling the contribution of abiotic exchange to CO2 flux in alkaline soils of arid areas[J]. Journal of Arid Land, 6 (1), 27, 2014.
  • 14. Chen X., Wang W.F., Luo G.P., et al. Time lag between carbon dioxide influx to and efflux from bare saline-alkali soil detected by the explicit partitioning and reconciling of soil CO2, flux[J]. Stochastic Environmental Research & Risk Assessment, 27 (3), 737, 2013.
  • 15. Zhang Q.B., Yang L., Xu Z.Z., et al. Effects of cotton field management practices on soil CO2 emission and C balance in an arid region of Northwest China[J]. Journal of Arid Land, 6 (4), 468, 2014.
  • 16. Chang Z.Q., Liu X.Q., Feng Q., et al. Non-growing season soil CO2, efflux and its changes in an alpine meadow ecosystem of the Qilian Mountains, Northwest China[J]. Journal of Arid Land, 5 (4), 488, 2013.
  • 17. Yan J.X., Li H.J., You L.F. Studies on soil respiration and its relation with environmental factors in a Maize (Zea mays L.) field in Taiyuan Basin[J]. Journal of Arid Land Resources & Environment, 24 (3), 183, 2010.
  • 18. Fan Y., Li P.F., Hou Z.A., et al. Water adaptive traits of deep-rooted C halophyte (Karelinia caspica (Pall.) Less.) and shallow-rooted C4 halophyte (Atriplex tatarica L.) in an arid region, Northwest China[J]. Journal of Arid Land, 4 (4), 469, 2012.
  • 19. Li C.J., Zeng F.J., Zhang B., et al. Optimal root system strategies for desert phreatophytic seedlings in the search for groundwater[J]. Journal of Arid Land, 7 (4), 462, 2015.
  • 20. Luo Y.Q., Zhao X.Y., Andren O., et al. Artificial root exudates and soil organic carbon mineralization in a degraded sandy grassland in northern China[J]. Journal of Arid Land, 6 (4), 423, 2014.
  • 21. Wang X.H., Piao S.L., Ciais P., et al. Are ecological gradients in seasonal Q10 of soil respiration explained by climate or by vegetation seasonality? Soil Biology & Biochemistry, 42, 1728, 2010.
  • 22. Wang Y., Wang Z., Li Y. Storage/turnover rate of inorganic carbon and its dissolvable part in the profile of saline/alkaline soils. PloS one, 8 (11), e82029, 2013.
  • 23. Schindler D.W. The mysterious missing sink. Nature, 398,105, 1999.
  • 24. Rey A. Mind the gap: non-biological processes contributing to soil CO2 efflux. Global change biology, doi: http://dx.doi. org/ 10.1111/gcb.12821, 2014.
  • 25. Sanchez -Cañete E.P., Serrano -Ortiz P., Kowalski A.S., et al. Subterranean CO2 ventilation and its role in the net ecosystem carbon balance of a karstic shrubland. Geophysical Research Letters, 38, L09802, 2011.
  • 26. Schlesinger W.H., Belnap J., Marion G. On carbon sequestration in desert ecosystems. Global Change Biology, 15, 1488, 2009

Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

bwmeta1.element.agro-440253a8-040a-4ce0-947e-168d59a67f16
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