Intrinsic climate dependency of ecosystem light and water-use-efficiencies across Australian biomes

Hao Shi, Longhui Li, Derek Eamus, James Cleverly, Alfredo Huete, Jason Beringer, Qiang Yu, Eva Van Gorsel, Lindsay Hutley

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    Abstract

    The sensitivity of ecosystem gross primary production (GPP) to availability of water and photosynthetically active radiation (PAR) differs among biomes. Here we investigated variations of ecosystem light-use-efficiency (eLUE: GPP/PAR) and water-use-efficiency (eWUE: GPP/evapotranspiration) among seven Australian eddy covariance sites with differing annual precipitation, species composition and temperature. Changes to both eLUE and eWUE were primarily correlated with atmospheric vapor pressure deficit (VPD) at multiple temporal scales across biomes, with minor additional correlations observed with soil moisture and temperature. The effects of leaf area index on eLUE and eWUE were also relatively weak compared to VPD, indicating an intrinsic dependency of eLUE and eWUE on climate. Additionally, eLUE and eWUE were statistically different for biomes between summer and winter, except eWUE for savannas and the grassland. These findings will improve our understanding of how light- and water-use traits in Australian ecosystems may respond to climate change.
    Original languageEnglish
    Article number104002
    Pages (from-to)1-12
    Number of pages12
    JournalEnvironmental Research Letters
    Volume9
    Issue number10
    DOIs
    Publication statusPublished - 2014

    Fingerprint

    biome
    water use efficiency
    Climate
    Ecosystems
    Ecosystem
    primary production
    photosynthetically active radiation
    Vapor pressure
    vapor pressure
    Light
    Water
    ecosystem
    climate
    Vapor Pressure
    Radiation
    light use efficiency
    Evapotranspiration
    Soil moisture
    eddy covariance
    Climate change

    Cite this

    Shi, Hao ; Li, Longhui ; Eamus, Derek ; Cleverly, James ; Huete, Alfredo ; Beringer, Jason ; Yu, Qiang ; Van Gorsel, Eva ; Hutley, Lindsay. / Intrinsic climate dependency of ecosystem light and water-use-efficiencies across Australian biomes. In: Environmental Research Letters. 2014 ; Vol. 9, No. 10. pp. 1-12.
    @article{22fd2ce1d65b4b13aaea1fb3edbacd7b,
    title = "Intrinsic climate dependency of ecosystem light and water-use-efficiencies across Australian biomes",
    abstract = "The sensitivity of ecosystem gross primary production (GPP) to availability of water and photosynthetically active radiation (PAR) differs among biomes. Here we investigated variations of ecosystem light-use-efficiency (eLUE: GPP/PAR) and water-use-efficiency (eWUE: GPP/evapotranspiration) among seven Australian eddy covariance sites with differing annual precipitation, species composition and temperature. Changes to both eLUE and eWUE were primarily correlated with atmospheric vapor pressure deficit (VPD) at multiple temporal scales across biomes, with minor additional correlations observed with soil moisture and temperature. The effects of leaf area index on eLUE and eWUE were also relatively weak compared to VPD, indicating an intrinsic dependency of eLUE and eWUE on climate. Additionally, eLUE and eWUE were statistically different for biomes between summer and winter, except eWUE for savannas and the grassland. These findings will improve our understanding of how light- and water-use traits in Australian ecosystems may respond to climate change.",
    keywords = "biomes, climate, Spatial patterns, Temporal scale, biome, eddy covariance, evapotranspiration, light use efficiency, photosynthetically active radiation, primary production, savanna, sensitivity analysis, soil moisture, temperature effect, water use efficiency, Australia",
    author = "Hao Shi and Longhui Li and Derek Eamus and James Cleverly and Alfredo Huete and Jason Beringer and Qiang Yu and {Van Gorsel}, Eva and Lindsay Hutley",
    year = "2014",
    doi = "10.1088/1748-9326/9/10/104002",
    language = "English",
    volume = "9",
    pages = "1--12",
    journal = "Environmental Research Letters",
    issn = "1748-9326",
    publisher = "Institute of Physics Publishing (IOP Publishing)",
    number = "10",

    }

    Shi, H, Li, L, Eamus, D, Cleverly, J, Huete, A, Beringer, J, Yu, Q, Van Gorsel, E & Hutley, L 2014, 'Intrinsic climate dependency of ecosystem light and water-use-efficiencies across Australian biomes', Environmental Research Letters, vol. 9, no. 10, 104002, pp. 1-12. https://doi.org/10.1088/1748-9326/9/10/104002

    Intrinsic climate dependency of ecosystem light and water-use-efficiencies across Australian biomes. / Shi, Hao; Li, Longhui; Eamus, Derek; Cleverly, James; Huete, Alfredo; Beringer, Jason; Yu, Qiang; Van Gorsel, Eva; Hutley, Lindsay.

    In: Environmental Research Letters, Vol. 9, No. 10, 104002, 2014, p. 1-12.

    Research output: Contribution to journalArticleResearchpeer-review

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    AU - Shi, Hao

    AU - Li, Longhui

    AU - Eamus, Derek

    AU - Cleverly, James

    AU - Huete, Alfredo

    AU - Beringer, Jason

    AU - Yu, Qiang

    AU - Van Gorsel, Eva

    AU - Hutley, Lindsay

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    N2 - The sensitivity of ecosystem gross primary production (GPP) to availability of water and photosynthetically active radiation (PAR) differs among biomes. Here we investigated variations of ecosystem light-use-efficiency (eLUE: GPP/PAR) and water-use-efficiency (eWUE: GPP/evapotranspiration) among seven Australian eddy covariance sites with differing annual precipitation, species composition and temperature. Changes to both eLUE and eWUE were primarily correlated with atmospheric vapor pressure deficit (VPD) at multiple temporal scales across biomes, with minor additional correlations observed with soil moisture and temperature. The effects of leaf area index on eLUE and eWUE were also relatively weak compared to VPD, indicating an intrinsic dependency of eLUE and eWUE on climate. Additionally, eLUE and eWUE were statistically different for biomes between summer and winter, except eWUE for savannas and the grassland. These findings will improve our understanding of how light- and water-use traits in Australian ecosystems may respond to climate change.

    AB - The sensitivity of ecosystem gross primary production (GPP) to availability of water and photosynthetically active radiation (PAR) differs among biomes. Here we investigated variations of ecosystem light-use-efficiency (eLUE: GPP/PAR) and water-use-efficiency (eWUE: GPP/evapotranspiration) among seven Australian eddy covariance sites with differing annual precipitation, species composition and temperature. Changes to both eLUE and eWUE were primarily correlated with atmospheric vapor pressure deficit (VPD) at multiple temporal scales across biomes, with minor additional correlations observed with soil moisture and temperature. The effects of leaf area index on eLUE and eWUE were also relatively weak compared to VPD, indicating an intrinsic dependency of eLUE and eWUE on climate. Additionally, eLUE and eWUE were statistically different for biomes between summer and winter, except eWUE for savannas and the grassland. These findings will improve our understanding of how light- and water-use traits in Australian ecosystems may respond to climate change.

    KW - biomes

    KW - climate

    KW - Spatial patterns

    KW - Temporal scale

    KW - biome

    KW - eddy covariance

    KW - evapotranspiration

    KW - light use efficiency

    KW - photosynthetically active radiation

    KW - primary production

    KW - savanna

    KW - sensitivity analysis

    KW - soil moisture

    KW - temperature effect

    KW - water use efficiency

    KW - Australia

    U2 - 10.1088/1748-9326/9/10/104002

    DO - 10.1088/1748-9326/9/10/104002

    M3 - Article

    VL - 9

    SP - 1

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    JO - Environmental Research Letters

    JF - Environmental Research Letters

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    ER -