Increasing annual runoff-broadleaf or coniferous forests?

Hikaru Komatsu, Tomonori Kume, Kyoichi Otsuki

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


According to widely held belief, annual evapotranspiration (ET) for broadleaf forests is less than that for coniferous forests, resulting in higher annual runoff for broadleaf forests. We processed 82 catchment runoff and 126 interception loss data from temperate regions and found that although the belief is valid under conditions of broadleaf deciduous forests and high winter precipitation (e.g. the United States), it is invalid under conditions of broadleaf evergreen forests (e.g. New Zealand) or low winter precipitation (e.g. Japan). Thus, forest management policies based on this belief should be reconsidered on the basis of our results for regions with broadleaf evergreen forests or low winter precipitation.

Original languageEnglish
Pages (from-to)302-318
Number of pages17
JournalHydrological Processes
Issue number2
Publication statusPublished - Jan 15 2011

All Science Journal Classification (ASJC) codes

  • Water Science and Technology


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