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  1. Contrasting effects of invasive insects and fire on ecosystem water use efficiency

    We used eddy covariance and meteorological measurements to estimate net ecosystem exchange of CO2 (NEE), gross ecosystem production (GEP), evapotranspiration (Et), and ecosystem water use efficiency (WUEe; calculated as GEP / Et during dry canopy conditions) in three upland forests in the New Jersey Pinelands, USA, that were defoliated by gypsy...

    Author(s):
    K.L. Clark; N.S. Skowronski; M.R. Gallagher; H. Renninger; K.V.R. Schäfer
    Year:
    2014
    Keywords:
    Source:
    Biogeosciences. 11(23): 6509-6523.

  2. Ten-year variability in ecosystem water use efficiency in an oak-dominated temperate forest under a warming climate

    The impacts of extreme weather events on water–carbon (C) coupling and ecosystem-scale water use effi-ciency (WUE) over a long term are poorly understood. We analyzed the changes in ecosystem water useefficiency (WUE) from 10 years of eddy-covariance measurements (2004–2013) over an oak-dominatedtemperate forest in Ohio, USA. The aim was to investigate the long-term...

    Author(s):
    Jing Xie; Jiquan Chen; Ge Sun; Tianshan Zha; Bai Yang; Housen Chu; Junguo Liu; Shiqiang Wan; Caixian Zhou; Hong Ma; Charles P.-A. Bourque; Changliang Shao; Ranjeet John; Zutao Ouyang
    Year:
    2016
    Keywords:
    Dryness index, Eddy covariance, Evapotranspiration, Gross ecosystem production, Long-term variability, Water use efficiency
    Source:
    Agricultural and Forest Meteorology

  3. Effects of Spring Drought on Carbon Sequestration, Evapotranspiration and Water Use Efficiency in the Songnen Meadow Steppe in Northeast China.

    Global climate change projections suggest an increasing frequency of droughts and extreme rain events in the steppes of the Eurasian region. Using the eddy covariance method, we measured carbon and water balances of a meadow steppe ecosystem in Northeast China during 2 years which had contrasting precipitation patterns in spring seasons in 2007 and 2008. The meadow...

    Author(s):
    Gang Dong; Jixun Guo; Jiquan Chen; Ge Sun; Song Gao; et al
    Year:
    2011
    Keywords:
    spring drought, net ecosystem CO2 exchange, water use efficiency, meadow steppe, eddy covariance
    Source:
    Ecohydrology 4:211–224

  4. Model estimates of net primary productivity, evaportranspiration, and water use efficiency in the terrestrial ecosystems of the southern United States

    The effects of global change on ecosystem productivity and water resources in the southern United States (SUS), a traditionally ‘water-rich’ region and the ‘timber basket’ of the country, are not well quantified. We carried out several simulation experiments to quantify ecosystem net primary productivity (NPP), evapotranspiration (ET)...

    Author(s):
    Hanqin Tian; Guangsheng Chen; Mingliang Liu; Chi Zhang; Ge Sun; Chaoqun Lu; Xiaofeng Xu; Wei Ren; Shufen Pan; Arthur Chappelka
    Year:
    2010
    Keywords:
    net primary productivity (NPP), evapotranspiration (ET), dynamic land ecosystem model (DLEM), water use efficiency (WUE), southern united states
    Source:
    Forest Ecology and Management, Vol. 259: 1311-1327

  5. Ecosystem resilience despite large-scale altered hydroclimatic conditions

    Climate change is predicted to increase both drought frequency and duration, and when coupled with substantial warming, will establish a new hydroclimatological model for many regions1. Largescale, warm droughts have recently occurred in North America, Africa, Europe, Amazonia and Australia, resulting in major effects on terrestrial ecosystems, carbon balance and food...

    Author(s):
    G. E. Ponce Campos; M. S. Moran; A. Huete; Y. Zhang; C. Bresloff; T.E. Huxman; D. Eamus; D. D. Bosch; A. R. Buda; S. A. Gunter; T. Heartsill Scalley; S. G. Kitchen; M. P. McClaran; W. H. McNab; D. S. Montoya; J. A. Morgan; D. P. C. Peters; E. J. Sadler; M. S. Seyfried; P. J. Starks
    Year:
    2013
    Keywords:
    climate change, drought, ecosystem resilience, water-use efficiency
    Source:
    Nature 494:349 - 353.

  6. Ecosystem resilience despite large-scale altered hydroclimatic conditions

    Climate change is predicted to increase both drought frequency and duration, and when coupled with substantial warming, will establish a new hydroclimatological model for many regions. Largescale, warm droughts have recently occurred in North America, Africa, Europe, Amazonia and Australia, resulting in major effects on terrestrial ecosystems, carbon balance and food...

    Author(s):
    Guillermo E. Ponce Campos; M. Susan Moran; Alfredo Huete; Yongguang Zhang; Cynthia Bresloff; Travis E. Huxman; Derek Eamus; David D. Bosch; Anthony R. Buda; Stacey A. Gunter; Tamara Heartsill Scalley; Stanley G. Kitchen; Mitchel P. McClaran; W. Henry McNab; Diane S. Montoya; Jack A. Morgan; Debra P. C. Peters; E. John Sadler; Mark S. Seyfried; Patrick J. Starks
    Year:
    2013
    Keywords:
    climate change, ecosystem resilience
    Source:
    Nature. 494: 349-353.
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