Carbon and nitrogen sequestration of Melaleuca floodplain wetlands in tropical Australia

M. F. Adame, R. Reef, Vanessa N.L. Wong, Stephen R. Balcombe, M. P. Turschwell, E. Kavehei, D. C. Rodríguez, J. J. Kelleway, Pere Masque, M. Ronan

Research output: Contribution to journalArticle

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Abstract

Wetlands of Melaleuca spp. in Australia form large forests that are highly threatened by deforestation and degradation. In America, Melaleuca has invaded large areas of native wetlands causing extensive damage. Despite their status as an endangered native ecosystem and as a highly invasive one, little is known about their C and N dynamics. In this study, we sampled five Melaleuca wetlands and measured their C and N ecosystem stocks (aboveground biomass and soil), tree accumulation rates, sedimentation rates, and soil stability. Melaleuca wetlands were highly heterogeneous, but most have large ecosystem C [mean ± SE (range); 360 ± 100 (80–670) Mg C ha−1] and N [8100 ± 1900 (1600–13,000) kg N ha−1] stocks. Tree accumulation rates were 5.0 ± 2.1 Mg C y−1 and 26 ± 14 kg N y−1, and surface soil accumulation rates were 0.6 ± 0.2 Mg C ha−1 y−1 and 39 ± 1 kg N y−1. We found evidence of long-term C and N accumulation in the soil, but also of some level of organic decomposition. Overall, we found that Melaleuca wetlands store and accumulate large amounts of C, especially in their trees, and large amounts of N in their soils, suggesting an important role in coastal biogeochemical cycles.

Original languageEnglish
Pages (from-to)1-13
JournalEcosystems
DOIs
Publication statusE-pub ahead of print - 19 Jul 2019

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Melaleuca
Wetlands
floodplains
floodplain
wetlands
Nitrogen
Carbon
wetland
Soils
accumulation rate
carbon
nitrogen
Ecosystems
soil
ecosystems
ecosystem
Deforestation
degradation
biogeochemical cycle
aboveground biomass

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Adame, M. F., Reef, R., Wong, V. N. L., Balcombe, S. R., Turschwell, M. P., Kavehei, E., ... Ronan, M. (2019). Carbon and nitrogen sequestration of Melaleuca floodplain wetlands in tropical Australia. Ecosystems, 1-13. https://doi.org/10.1007/s10021-019-00414-5
Adame, M. F. ; Reef, R. ; Wong, Vanessa N.L. ; Balcombe, Stephen R. ; Turschwell, M. P. ; Kavehei, E. ; Rodríguez, D. C. ; Kelleway, J. J. ; Masque, Pere ; Ronan, M. / Carbon and nitrogen sequestration of Melaleuca floodplain wetlands in tropical Australia. In: Ecosystems. 2019 ; pp. 1-13.
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abstract = "Wetlands of Melaleuca spp. in Australia form large forests that are highly threatened by deforestation and degradation. In America, Melaleuca has invaded large areas of native wetlands causing extensive damage. Despite their status as an endangered native ecosystem and as a highly invasive one, little is known about their C and N dynamics. In this study, we sampled five Melaleuca wetlands and measured their C and N ecosystem stocks (aboveground biomass and soil), tree accumulation rates, sedimentation rates, and soil stability. Melaleuca wetlands were highly heterogeneous, but most have large ecosystem C [mean ± SE (range); 360 ± 100 (80–670) Mg C ha−1] and N [8100 ± 1900 (1600–13,000) kg N ha−1] stocks. Tree accumulation rates were 5.0 ± 2.1 Mg C y−1 and 26 ± 14 kg N y−1, and surface soil accumulation rates were 0.6 ± 0.2 Mg C ha−1 y−1 and 39 ± 1 kg N y−1. We found evidence of long-term C and N accumulation in the soil, but also of some level of organic decomposition. Overall, we found that Melaleuca wetlands store and accumulate large amounts of C, especially in their trees, and large amounts of N in their soils, suggesting an important role in coastal biogeochemical cycles.",
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Adame, MF, Reef, R, Wong, VNL, Balcombe, SR, Turschwell, MP, Kavehei, E, Rodríguez, DC, Kelleway, JJ, Masque, P & Ronan, M 2019, 'Carbon and nitrogen sequestration of Melaleuca floodplain wetlands in tropical Australia' Ecosystems, pp. 1-13. https://doi.org/10.1007/s10021-019-00414-5

Carbon and nitrogen sequestration of Melaleuca floodplain wetlands in tropical Australia. / Adame, M. F.; Reef, R.; Wong, Vanessa N.L.; Balcombe, Stephen R.; Turschwell, M. P.; Kavehei, E.; Rodríguez, D. C.; Kelleway, J. J.; Masque, Pere ; Ronan, M.

In: Ecosystems, 19.07.2019, p. 1-13.

Research output: Contribution to journalArticle

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T1 - Carbon and nitrogen sequestration of Melaleuca floodplain wetlands in tropical Australia

AU - Adame, M. F.

AU - Reef, R.

AU - Wong, Vanessa N.L.

AU - Balcombe, Stephen R.

AU - Turschwell, M. P.

AU - Kavehei, E.

AU - Rodríguez, D. C.

AU - Kelleway, J. J.

AU - Masque, Pere

AU - Ronan, M.

PY - 2019/7/19

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AB - Wetlands of Melaleuca spp. in Australia form large forests that are highly threatened by deforestation and degradation. In America, Melaleuca has invaded large areas of native wetlands causing extensive damage. Despite their status as an endangered native ecosystem and as a highly invasive one, little is known about their C and N dynamics. In this study, we sampled five Melaleuca wetlands and measured their C and N ecosystem stocks (aboveground biomass and soil), tree accumulation rates, sedimentation rates, and soil stability. Melaleuca wetlands were highly heterogeneous, but most have large ecosystem C [mean ± SE (range); 360 ± 100 (80–670) Mg C ha−1] and N [8100 ± 1900 (1600–13,000) kg N ha−1] stocks. Tree accumulation rates were 5.0 ± 2.1 Mg C y−1 and 26 ± 14 kg N y−1, and surface soil accumulation rates were 0.6 ± 0.2 Mg C ha−1 y−1 and 39 ± 1 kg N y−1. We found evidence of long-term C and N accumulation in the soil, but also of some level of organic decomposition. Overall, we found that Melaleuca wetlands store and accumulate large amounts of C, especially in their trees, and large amounts of N in their soils, suggesting an important role in coastal biogeochemical cycles.

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KW - Queensland

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Adame MF, Reef R, Wong VNL, Balcombe SR, Turschwell MP, Kavehei E et al. Carbon and nitrogen sequestration of Melaleuca floodplain wetlands in tropical Australia. Ecosystems. 2019 Jul 19;1-13. https://doi.org/10.1007/s10021-019-00414-5