Carbon allocation in a Bornean tropical rainforest without dry seasons

Ayumi Katayama, Tomonori Kume, Hikaru Komatsu, Taku M. Saitoh, Mizue Ohashi, Michiko Nakagawa, Masakazu Suzuki, Kyoichi Otsuki, Tomo'omi Kumagai

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

To clarify characteristics of carbon (C) allocation in a Bornean tropical rainforest without dry seasons, gross primary production (GPP) and C allocation, i.e., above-ground net primary production (ANPP), aboveground plant respiration (APR), and total below-ground carbon flux (TBCF) for the forest were examined and compared with those from Amazonian tropical rainforests with dry seasons. GPP (30.61 MgC ha-1 year-1, eddy covariance measurements; 34.40 MgC ha-1 year-1, biometric measurements) was comparable to those for Amazonian rainforests. ANPP (6.76 MgC ha-1 year-1) was comparable to, and APR (8.01 MgC ha-1 year-1) was slightly lower than, their respective values for Amazonian rainforests, even though aboveground biomass was greater at our site. TBCF (19.63 MgC ha-1 year-1) was higher than those for Amazonian forests. The comparable ANPP and higher TBCF were unexpected, since higher water availability would suggest less fine root competition for water, giving higher ANPP and lower TBCF to GPP. Low nutrient availability may explain the comparable ANPP and higher TBCF. These data show that there are variations in C allocation patterns among mature tropical rainforests, and the variations cannot be explained solely by differences in soil water availability.

Original languageEnglish
Pages (from-to)505-515
Number of pages11
JournalJournal of Plant Research
Volume126
Issue number4
DOIs
Publication statusPublished - Jul 1 2013

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tropical rain forests
dry season
carbon
cell respiration
rain forests
plant available water
eddy covariance
biometry
nutrient availability
aboveground biomass
water

All Science Journal Classification (ASJC) codes

  • Plant Science

Cite this

Carbon allocation in a Bornean tropical rainforest without dry seasons. / Katayama, Ayumi; Kume, Tomonori; Komatsu, Hikaru; Saitoh, Taku M.; Ohashi, Mizue; Nakagawa, Michiko; Suzuki, Masakazu; Otsuki, Kyoichi; Kumagai, Tomo'omi.

In: Journal of Plant Research, Vol. 126, No. 4, 01.07.2013, p. 505-515.

Research output: Contribution to journalArticle

Katayama, A, Kume, T, Komatsu, H, Saitoh, TM, Ohashi, M, Nakagawa, M, Suzuki, M, Otsuki, K & Kumagai, T 2013, 'Carbon allocation in a Bornean tropical rainforest without dry seasons', Journal of Plant Research, vol. 126, no. 4, pp. 505-515. https://doi.org/10.1007/s10265-012-0544-0
Katayama, Ayumi ; Kume, Tomonori ; Komatsu, Hikaru ; Saitoh, Taku M. ; Ohashi, Mizue ; Nakagawa, Michiko ; Suzuki, Masakazu ; Otsuki, Kyoichi ; Kumagai, Tomo'omi. / Carbon allocation in a Bornean tropical rainforest without dry seasons. In: Journal of Plant Research. 2013 ; Vol. 126, No. 4. pp. 505-515.
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