Disentangling climatic and anthropogenic controls on global terrestrial evapotranspiration trends
By J. Mao, W. Fu, Xiaoying Shi, D. Ricciuto, Joshua B. Fisher, Robert E. Dickinson, Yaxing Wei, W. Shem, Shilong Piao, Kaicun Wang and 31 more. Environmental Research Letters, 2015
151 citations recorded by the source corpus.
We examined natural and anthropogenic controls on terrestrial evapotranspiration (ET) changes from 1982 to 2010 using multiple estimates from remote sensing-based datasets and process-oriented land surface models. A significant increasing trend of ET in each hemisphere was consistently revealed by observationally-constrained data and multi-model ensembles that considered historic natural and anthropogenic drivers. The climate impacts were simulated to determine the spatiotemporal variations in ET. Globally, rising CO2 ranked second in these models after the predominant climatic influences, and yielded decreasing trends in canopy transpiration and ET, especially for tropical forests and high-latitude shrub land. Increasing nitrogen deposition slightly amplified global ET via enhanced plant growth. Land-use-induced ET responses, albeit with substantial uncertainties across the factorial analysis, were minor globally, but pronounced locally, particularly over regions with intensive land-cover changes. Our study highlights the importance of employing multi-stream ET and ET-component estimates to quantify the strengthening anthropogenic fingerprint in the global hydrologic cycle.
Subfields: Global and Planetary Change
View Paper: https://www.semanticscholar.org/paper/196d92c9b481f5f3812b7065b120348e19b4b000
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In Global and Planetary Change
Citations in the corpus
- Current issues in tropical phenology: a synthesis (2018, background): “Modifications in atmospheric CO2 arise through variations in the carbon cycle, in which biomes with large carbon stocks per unit area over large areas, such as the tropical forests, are highly significant (Fisher et al. 2013, Lewis 2006, Mao et al. 2015, Pan et al. 2011).”