---
OA_place: publisher
OA_type: free access
_id: '22547'
abstract:
- lang: eng
  text: Interannual variability of precipitation can influence components of the hydrological
    budget, affecting them directly and indirectly through adjustments in vegetation
    structure and function. We investigate the effects of fluctuations of annual precipitation
    on ecohydrological dynamics. Specifically, we use the advanced weather generator,
    AWE‐GEN, to simulate 200 years of hourly meteorological forcing obtained by imposing
    four types of precipitation annual process with identical long‐term mean. The
    generated time series force a mechanistic ecohydrological model, Tethys‐Chloris.
    Simulations with perturbed precipitation variability are performed for four locations
    characterized by different vegetation cover and climate. The results indicate
    that long‐term transpiration (T) and evapotranspiration (ET) fluxes as well as
    vegetation productivity expressed as Gross Primary Production (GPP) and Aboveground
    Net Primary Production (ANPP) are essentially unaffected by the imposed climate
    fluctuations. This finding supports the hypothesis of a relative insensitivity,
    except for water‐limited environments, of interannual evapotranspiration and vegetation
    productivity to annual climatic fluctuations, which are mostly reflected in the
    fluxes of deep leakage and runoff. The occurrence of short periods of favorable
    meteorological conditions randomly taking place within the year was found to be
    a better explanatory variable for interannual variability of ET and ANPP than
    average annual or growing season conditions. The results indicated that local,
    single‐site sensitivities are considerably smaller than those observed across
    climatic and vegetation spatial gradients and thus an important role of ecosystem
    reorganization in modifying ANPP and ET sensitivity in a changing climate is recognized.
article_processing_charge: No
article_type: original
author:
- first_name: Simone
  full_name: Fatichi, Simone
  id: cf8e546b-a9b0-11f0-a43b-aa89ed1b56d6
  last_name: Fatichi
- first_name: Valeriy Y.
  full_name: Ivanov, Valeriy Y.
  last_name: Ivanov
citation:
  ama: Fatichi S, Ivanov VY. Interannual variability of evapotranspiration and vegetation
    productivity. <i>Water Resources Research</i>. 2014;50(4):3275-3294. doi:<a href="https://doi.org/10.1002/2013wr015044">10.1002/2013wr015044</a>
  apa: Fatichi, S., &#38; Ivanov, V. Y. (2014). Interannual variability of evapotranspiration
    and vegetation productivity. <i>Water Resources Research</i>. American Geophysical
    Union. <a href="https://doi.org/10.1002/2013wr015044">https://doi.org/10.1002/2013wr015044</a>
  chicago: Fatichi, Simone, and Valeriy Y. Ivanov. “Interannual Variability of Evapotranspiration
    and Vegetation Productivity.” <i>Water Resources Research</i>. American Geophysical
    Union, 2014. <a href="https://doi.org/10.1002/2013wr015044">https://doi.org/10.1002/2013wr015044</a>.
  ieee: S. Fatichi and V. Y. Ivanov, “Interannual variability of evapotranspiration
    and vegetation productivity,” <i>Water Resources Research</i>, vol. 50, no. 4.
    American Geophysical Union, pp. 3275–3294, 2014.
  ista: Fatichi S, Ivanov VY. 2014. Interannual variability of evapotranspiration
    and vegetation productivity. Water Resources Research. 50(4), 3275–3294.
  mla: Fatichi, Simone, and Valeriy Y. Ivanov. “Interannual Variability of Evapotranspiration
    and Vegetation Productivity.” <i>Water Resources Research</i>, vol. 50, no. 4,
    American Geophysical Union, 2014, pp. 3275–94, doi:<a href="https://doi.org/10.1002/2013wr015044">10.1002/2013wr015044</a>.
  short: S. Fatichi, V.Y. Ivanov, Water Resources Research 50 (2014) 3275–3294.
das_tickbox: '1'
date_created: 2026-07-27T12:30:24Z
date_published: 2014-04-01T00:00:00Z
date_updated: 2026-08-06T08:11:01Z
day: '01'
doi: 10.1002/2013wr015044
extern: '1'
intvolume: '        50'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1002/2013WR015044
month: '04'
oa: 1
oa_version: Published Version
page: 3275-3294
publication: Water Resources Research
publication_identifier:
  eissn:
  - 1944-7973
  issn:
  - 0043-1397
publication_status: published
publisher: American Geophysical Union
quality_controlled: '1'
scopus_import: '1'
status: public
title: Interannual variability of evapotranspiration and vegetation productivity
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 50
year: '2014'
...