Theoretical and Applied Climatology

, Volume 111, Issue 1, pp 79–96

Revisiting forest impact on atmospheric water vapor transport and precipitation

  • Anastassia M. Makarieva
  • Victor G. Gorshkov
  • Bai-Lian Li
Original Paper

DOI: 10.1007/s00704-012-0643-9

Cite this article as:
Makarieva, A.M., Gorshkov, V.G. & Li, BL. Theor Appl Climatol (2013) 111: 79. doi:10.1007/s00704-012-0643-9


Using a robust global precipitation database, we analyze coast-to-interior seasonal precipitation distributions over the world’s major forest regions. We find that the active functioning of boreal forests in summer is associated with an intense ocean-to-land moisture transport, which declines in winter when forest functioning is minimal. This seasonal switch manifests itself as a change in the exponential scale length of precipitation distribution, which exceeds 15 × 103 km in summer but decreases to (3–4) × 103 km in winter. In equatorial rainforests, which are photosynthetically active throughout the year, annual precipitation remains approximately constant, while the coefficient of variation of monthly precipitation significantly declines toward the continent interior. Precipitation over forest during the periods of active forest functioning is always higher than over the adjacent ocean. Such precipitation patterns support the biotic pump concept according to which forest cover drives the ocean-to-land atmospheric moisture transport on a continental scale.

Supplementary material

704_2012_643_MOESM1_ESM.doc (1.6 mb)
ESM 1(DOC 1621 kb)

Copyright information

© Springer-Verlag 2012

Authors and Affiliations

  • Anastassia M. Makarieva
    • 1
  • Victor G. Gorshkov
    • 1
  • Bai-Lian Li
    • 2
  1. 1.Theoretical Physics DivisionPetersburg Nuclear Physics InstituteSt. PetersburgRussia
  2. 2.XIEG-UCR International Center for Arid Land EcologyUniversity of CaliforniaRiversideUSA

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