Journal
ADVANCES IN WATER RESOURCES
Volume 121, Issue -, Pages 472-479Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.advwatres.2018.08.015
Keywords
Stemflow; Funneling ratio; Forest hydrology; Hot spot; Dipterocarp forest; Lodgepole pine
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Funding
- Ministry of the Environment of Japan
- Japanese Society for the Promotion of Science (JSPS) [JP21710021, JP17KK0159]
- National Science and Engineering Research Council of Canada (NSERC) [312341-2008]
- project TransHyMed (AEI/FEDER, UE) [CGL2016-75957-R]
- Collaborative Research Centre AquaDiva of the Friedrich Schiller University Jena - DFG [CRC 1076]
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Despite some progress, the importance of stemflow remains obscured partly due to computations emphasizing canopy interception loss. We advocate for two metrics-the stand-scale funneling ratio and the stand-scale infiltration funneling ratio-to more accurately portray stemflow inputs and increase comparability across ecosystems. These metrics yield per unit area stemflow inputs orders of magnitude greater than what would have been delivered by throughfall or precipitation alone. We recommend that future studies employ these stand-scale funnelling metrics to express stemflow commensurate with its ecohydrological importance and better conceptualize the role of stemflow in plant-soil interactions, permitting advances in critical zone science.
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