No differences in soil carbon stocks across the tree line in the Peruvian Andes

Michael Zimmermann, Patrick Meir, Miles R. Silman, Anna Fedders, Adam Gibbon, Yadvinder Malhi, Dunia H. Urrego, Mark B. Bush, Kenneth Feeley, Karina C. Garcia, Greta C. Dargie, Wiliam R. Farfan, Bradley P. Goetz, Wesley T. Johnson, Krystle M. Kline, Andrew T. Modi, Natividad M.Q. Rurau, Brian T. Staudt, Flor Zamora

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

Reliable soil organic carbon (SOC) stock measurements of all major ecosystems are essential for predicting the influence of global warming on global soil carbon pools, but hardly any detailed soil survey data are available for tropical montane cloud forests (TMCF) and adjacent high elevation grasslands above (puna). TMCF are among the most threatened of ecosystems under current predicted global warming scenarios. We conducted an intensive soil sampling campaign extending 40 km along the tree line in the Peruvian Andes between 2994 and 3860 m asl to quantify SOC stocks of TMCF, puna grassland, and shrubland sites in the transition zone between the two habitats. SOC stocks from the soil surface down to the bedrock averaged (±standard error SE) 11. 8 (±1.5, N = 24) kg C/m2 in TMCF, 14.7 (±1.4, N = 9) kg C/m2 in the shrublands and 11.9 (±0.8, N = 35) kg C/m2 in the grasslands and were not significantly different (P > 0.05 for all comparisons). However, soil profile analysis revealed distinct differences, with TMCF profiles showing a uniform SOC distribution with depth, shrublands a linear decrease, and puna sites an exponential decrease in SOC densities with soil depth. Organic soil layer thickness reached a maximum (~70 cm) at the upper limit of the TMCF and declined with increasing altitude toward puna sites. Within TMCF, no significant increase in SOC stocks with increasing altitude was observed, probably because of the large variations among SOC stocks at different sites, which in turn were correlated with spatial variation in soil depth.

Original languageEnglish (US)
Pages (from-to)62-74
Number of pages13
JournalEcosystems
Volume13
Issue number1
DOIs
StatePublished - Feb 1 2010
Externally publishedYes

Fingerprint

tropical montane cloud forests
treeline
cloud forest
soil carbon
carbon sinks
soil organic carbon
montane forest
Carbon
Soils
organic carbon
Organic carbon
soil
shrublands
shrubland
grasslands
grassland
soil depth
global warming
ecosystems
soil surveys

Keywords

  • Puna
  • Soil carbon stocks
  • Tree line
  • Tropical montane cloud forest

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Environmental Chemistry
  • Ecology

Cite this

Zimmermann, M., Meir, P., Silman, M. R., Fedders, A., Gibbon, A., Malhi, Y., ... Zamora, F. (2010). No differences in soil carbon stocks across the tree line in the Peruvian Andes. Ecosystems, 13(1), 62-74. https://doi.org/10.1007/s10021-009-9300-2

No differences in soil carbon stocks across the tree line in the Peruvian Andes. / Zimmermann, Michael; Meir, Patrick; Silman, Miles R.; Fedders, Anna; Gibbon, Adam; Malhi, Yadvinder; Urrego, Dunia H.; Bush, Mark B.; Feeley, Kenneth; Garcia, Karina C.; Dargie, Greta C.; Farfan, Wiliam R.; Goetz, Bradley P.; Johnson, Wesley T.; Kline, Krystle M.; Modi, Andrew T.; Rurau, Natividad M.Q.; Staudt, Brian T.; Zamora, Flor.

In: Ecosystems, Vol. 13, No. 1, 01.02.2010, p. 62-74.

Research output: Contribution to journalArticle

Zimmermann, M, Meir, P, Silman, MR, Fedders, A, Gibbon, A, Malhi, Y, Urrego, DH, Bush, MB, Feeley, K, Garcia, KC, Dargie, GC, Farfan, WR, Goetz, BP, Johnson, WT, Kline, KM, Modi, AT, Rurau, NMQ, Staudt, BT & Zamora, F 2010, 'No differences in soil carbon stocks across the tree line in the Peruvian Andes', Ecosystems, vol. 13, no. 1, pp. 62-74. https://doi.org/10.1007/s10021-009-9300-2
Zimmermann M, Meir P, Silman MR, Fedders A, Gibbon A, Malhi Y et al. No differences in soil carbon stocks across the tree line in the Peruvian Andes. Ecosystems. 2010 Feb 1;13(1):62-74. https://doi.org/10.1007/s10021-009-9300-2
Zimmermann, Michael ; Meir, Patrick ; Silman, Miles R. ; Fedders, Anna ; Gibbon, Adam ; Malhi, Yadvinder ; Urrego, Dunia H. ; Bush, Mark B. ; Feeley, Kenneth ; Garcia, Karina C. ; Dargie, Greta C. ; Farfan, Wiliam R. ; Goetz, Bradley P. ; Johnson, Wesley T. ; Kline, Krystle M. ; Modi, Andrew T. ; Rurau, Natividad M.Q. ; Staudt, Brian T. ; Zamora, Flor. / No differences in soil carbon stocks across the tree line in the Peruvian Andes. In: Ecosystems. 2010 ; Vol. 13, No. 1. pp. 62-74.
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