Abstract: Evapotranspiration (ET) is the central process of terrestrial hydrological cycle and energy balance. Water use efficiency (WUE) reflects the coupling between carbon and water cycles. Both ET and WUE have been widely used in the researches of ecology, agriculture, hydrologyand climatology. Eddy covariance (EC) method is regarded as the only standard method for directly measuring the material and energy exchanges between biosphere and atmosphere, as well as the most important method for GPP and ET ecosystem-scale observations. By synthesizing eddy-covariance carbon and water flux data in China of both ChinaFLUX observations and published literature, we constructed the dataset of actual evapotranspiration and water use efficiency of typical terrestrial ecosystems in China. The dataset contains 143 records of annual actual ET and 96 records of annual mean water use efficiency for 45 ecosystems across China during 2000 – 2010. This dataset can provide data support for analyses on terrestrial carbon and water cycles, ecosystem management and evaluation, global change and other related researches.
Keywords: actual evapotranspiration; water use efficiency; eddy covariance; terrestrial ecosystem; China; ChinaFLUX