---
res:
  bibo_abstract:
  - Despite their size and contribution to the global carbon cycle, we have limited
    understanding of tropical savannas and their current trajectory with climate change
    and anthropogenic pressures. Here we examined interannual variability and externally
    forced long-term changes in carbon and water exchange from a high rainfall savanna
    site in the seasonal tropics of north Australia. We used an 18-year flux data
    time series (2001–2019) to detect trends and drivers of fluxes of carbon and water.
    Significant positive trends in gross primary productivity (GPP, 15.4 g C m2 year−2),
    ecosystem respiration (Reco, 8.0 g C m2 year−2), net ecosystem productivity (NEE,
    7.4 g C m2 year−2) and ecosystem water use efficiency (WUE, 0.0077 g C kg H2O−1
    year−1) were computed. There was a weaker, non-significant trend in latent energy
    exchange (LE, 0.34 W m−2 year−1). Rainfall from a nearby site increased statistically
    over a 45-year period during the observation period. To examine the dominant drivers
    of changes in GPP and WUE, we used a random forest approach and a terrestrial
    biosphere model to conduct an attribution experiment. Radiant energy was the dominant
    driver of wet season fluxes, whereas soil water content dominated dry season fluxes.
    The model attribution suggested that [CO2], precipitation and Tair accounting
    for 90% of the modelled trend in GPP and WUE. Positive trends in fluxes were largest
    in the dry season implying tree components were a larger contributor than the
    grassy understorey. Fluxes and environmental drivers were not significant during
    the wet season, the period when grasses are active. The site is potentially still
    recovering from a cyclone 45 years ago and regrowth from this event may also be
    contributing to the observed trends in sequestration, highlighting the need to
    understand fluxes and their drivers from sub-diurnal to decadal scales.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Lindsay B.
      foaf_name: Hutley, Lindsay B.
      foaf_surname: Hutley
  - foaf_Person:
      foaf_givenName: Jason
      foaf_name: Beringer, Jason
      foaf_surname: Beringer
  - foaf_Person:
      foaf_givenName: Simone
      foaf_name: Fatichi, Simone
      foaf_surname: Fatichi
      foaf_workInfoHomepage: http://www.librecat.org/personId=cf8e546b-a9b0-11f0-a43b-aa89ed1b56d6
  - foaf_Person:
      foaf_givenName: Stanislaus J.
      foaf_name: Schymanski, Stanislaus J.
      foaf_surname: Schymanski
  - foaf_Person:
      foaf_givenName: Matthew
      foaf_name: Northwood, Matthew
      foaf_surname: Northwood
  bibo_doi: 10.1111/gcb.16012
  bibo_issue: '7'
  bibo_volume: 28
  dct_date: 2022^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/1354-1013
  - http://id.crossref.org/issn/1365-2486
  dct_language: eng
  dct_publisher: Wiley@
  dct_subject:
  - CO2 fertilization
  - Ecosystem model
  - Eddy covariance
  - Howard Springs
  - Water use efficiency
  dct_title: Gross primary productivity and water use efficiency are increasing in
    a high rainfall tropical savanna@
  fabio_hasPubmedId: '34854173'
...