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Root-derived CO2 flux from a tropical peatland

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Root-derived CO2 flux from a tropical peatland. / Girkin, N. T.; Turner, B. L.; Ostle, N.; Sjögersten, S.

In: Wetlands Ecology and Management, Vol. 26, No. 5, 10.2018, p. 985-991.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Girkin, NT, Turner, BL, Ostle, N & Sjögersten, S 2018, 'Root-derived CO2 flux from a tropical peatland', Wetlands Ecology and Management, vol. 26, no. 5, pp. 985-991. https://doi.org/10.1007/s11273-018-9617-8

APA

Girkin, N. T., Turner, B. L., Ostle, N., & Sjögersten, S. (2018). Root-derived CO2 flux from a tropical peatland. Wetlands Ecology and Management, 26(5), 985-991. https://doi.org/10.1007/s11273-018-9617-8

Vancouver

Girkin NT, Turner BL, Ostle N, Sjögersten S. Root-derived CO2 flux from a tropical peatland. Wetlands Ecology and Management. 2018 Oct;26(5):985-991. https://doi.org/10.1007/s11273-018-9617-8

Author

Girkin, N. T. ; Turner, B. L. ; Ostle, N. ; Sjögersten, S. / Root-derived CO2 flux from a tropical peatland. In: Wetlands Ecology and Management. 2018 ; Vol. 26, No. 5. pp. 985-991.

Bibtex

@article{76ea189030fa47569422c21cddb08bf6,
title = "Root-derived CO2 flux from a tropical peatland",
abstract = "Tropical peatlands release significant quantities of greenhouse gases to the atmosphere, yet the relative contributions of heterotrophic and autotrophic respiration to net CO2 fluxes remains sparsely quantified. We used a combination of in situ trenching and vegetation removal in ex situ pots to quantify root-derived CO2 under two plant functional types within a mixed species forest. Trenching significantly reduced surface CO2 flux, indicating that approximately two-thirds of the released CO2 was derived from roots. In contrast, ex situ vegetation removal in pots indicated that root-derived CO2 accounted for 27% of the total CO2 flux for Campnosperma panamensis, a broadleaved evergreen tree, and 49% for Raphia taedigera, a canopy palm. The results show that root-derived CO2 is a major contribution to net CO2 emissions in tropical peatlands, and that the magnitude of the emissions is affected by plant species composition. This is important in the context of land use change driving alterations in vegetation cover.",
keywords = "Tropical peat, Carbon dioxide, Soil respiration, Root respiration, Trenching, LOWLAND NEOTROPICAL PEATLANDS, SOIL RESPIRATION, CH4 FLUXES, RHIZOSPHERE RESPIRATION, CARBON STORAGE, FOREST, LITTER, DECOMPOSITION, TEMPERATURE, PROFILES",
author = "Girkin, {N. T.} and Turner, {B. L.} and N. Ostle and S. Sj{\"o}gersten",
year = "2018",
month = oct,
doi = "10.1007/s11273-018-9617-8",
language = "English",
volume = "26",
pages = "985--991",
journal = "Wetlands Ecology and Management",
issn = "0923-4861",
publisher = "Springer",
number = "5",

}

RIS

TY - JOUR

T1 - Root-derived CO2 flux from a tropical peatland

AU - Girkin, N. T.

AU - Turner, B. L.

AU - Ostle, N.

AU - Sjögersten, S.

PY - 2018/10

Y1 - 2018/10

N2 - Tropical peatlands release significant quantities of greenhouse gases to the atmosphere, yet the relative contributions of heterotrophic and autotrophic respiration to net CO2 fluxes remains sparsely quantified. We used a combination of in situ trenching and vegetation removal in ex situ pots to quantify root-derived CO2 under two plant functional types within a mixed species forest. Trenching significantly reduced surface CO2 flux, indicating that approximately two-thirds of the released CO2 was derived from roots. In contrast, ex situ vegetation removal in pots indicated that root-derived CO2 accounted for 27% of the total CO2 flux for Campnosperma panamensis, a broadleaved evergreen tree, and 49% for Raphia taedigera, a canopy palm. The results show that root-derived CO2 is a major contribution to net CO2 emissions in tropical peatlands, and that the magnitude of the emissions is affected by plant species composition. This is important in the context of land use change driving alterations in vegetation cover.

AB - Tropical peatlands release significant quantities of greenhouse gases to the atmosphere, yet the relative contributions of heterotrophic and autotrophic respiration to net CO2 fluxes remains sparsely quantified. We used a combination of in situ trenching and vegetation removal in ex situ pots to quantify root-derived CO2 under two plant functional types within a mixed species forest. Trenching significantly reduced surface CO2 flux, indicating that approximately two-thirds of the released CO2 was derived from roots. In contrast, ex situ vegetation removal in pots indicated that root-derived CO2 accounted for 27% of the total CO2 flux for Campnosperma panamensis, a broadleaved evergreen tree, and 49% for Raphia taedigera, a canopy palm. The results show that root-derived CO2 is a major contribution to net CO2 emissions in tropical peatlands, and that the magnitude of the emissions is affected by plant species composition. This is important in the context of land use change driving alterations in vegetation cover.

KW - Tropical peat

KW - Carbon dioxide

KW - Soil respiration

KW - Root respiration

KW - Trenching

KW - LOWLAND NEOTROPICAL PEATLANDS

KW - SOIL RESPIRATION

KW - CH4 FLUXES

KW - RHIZOSPHERE RESPIRATION

KW - CARBON STORAGE

KW - FOREST

KW - LITTER

KW - DECOMPOSITION

KW - TEMPERATURE

KW - PROFILES

U2 - 10.1007/s11273-018-9617-8

DO - 10.1007/s11273-018-9617-8

M3 - Journal article

AN - SCOPUS:85049798574

VL - 26

SP - 985

EP - 991

JO - Wetlands Ecology and Management

JF - Wetlands Ecology and Management

SN - 0923-4861

IS - 5

ER -