---
OA_place: publisher
OA_type: free access
_id: '22455'
abstract:
- lang: eng
  text: While the claim that water-carbon interactions result in spatially coherent
    vegetation patterning is rarely disputed in many arid and semiarid regions, the
    significance of the detailed water pathways and other high frequency variability
    remain an open question. How the short temporal scale meteorological fluctuations
    form the long-term spatial variability of available soil water in complex terrains
    due to the various hydrological, land surface, and vegetation dynamic feedbacks
    frames the scope of the work here. Knowledge of the detailed mechanistic feedbacks
    among soil, plants, and the atmosphere will lead to advances in our understanding
    of plant water availability in arid and semiarid ecosystems and will provide insights
    for future model development concerning vegetation pattern formation. In this
    study, quantitative estimates of water fluxes and vegetation productivity are
    provided for a semiarid ecosystem with established vegetation bands on hillslopes
    using numerical simulations. A state-of-the-science process based ecohydrological
    model is used, which resolves hydrological and plant physiological processes at
    the relevant space and time scales, for relatively small periods (e.g., decades)
    of mature ecosystems (i.e., spatially static vegetation distribution). To unfold
    the mechanisms that shape the spatial distribution of soil moisture, plant productivity
    and the relevant surface/subsurface and atmospheric water fluxes, idealized hillslope
    numerical experiments are constructed, where the effects of soil type, slope steepness,
    and overland flow accumulation area are quantified. Those mechanisms are also
    simulated in the presence of complex topography features on landscapes. The main
    results are (a) short temporal scale meteorological variability and accurate representation
    of the scales at which each ecohydrological process operates are crucial for the
    estimation of the spatial variability of soil water availability to the plant
    root zone; (b) water fluxes such as evapotranspiration, infiltration, runoff-run-on,
    and subsurface soil water movement have a dynamic short temporal scale behavior
    that determines the long-term spatial organization of plant soil water availability
    in ecosystems with established vegetation patterns; and (c) hypotheses concerning
    the hydrological responses that can lead to vegetation pattern formation have
    to accommodate realistic and physically based representations of the fast dynamics
    of key ecohydrological fluxes.
article_processing_charge: No
article_type: original
author:
- first_name: Athanasios
  full_name: Paschalis, Athanasios
  last_name: Paschalis
- first_name: Gabriel G.
  full_name: Katul, Gabriel G.
  last_name: Katul
- first_name: Simone
  full_name: Fatichi, Simone
  id: cf8e546b-a9b0-11f0-a43b-aa89ed1b56d6
  last_name: Fatichi
- first_name: Gabriele
  full_name: Manoli, Gabriele
  last_name: Manoli
- first_name: Peter
  full_name: Molnar, Peter
  last_name: Molnar
citation:
  ama: Paschalis A, Katul GG, Fatichi S, Manoli G, Molnar P. Matching ecohydrological
    processes and scales of banded vegetation patterns in semiarid catchments. <i>Water
    Resources Research</i>. 2016;52(3):2259-2278. doi:<a href="https://doi.org/10.1002/2015wr017679">10.1002/2015wr017679</a>
  apa: Paschalis, A., Katul, G. G., Fatichi, S., Manoli, G., &#38; Molnar, P. (2016).
    Matching ecohydrological processes and scales of banded vegetation patterns in
    semiarid catchments. <i>Water Resources Research</i>. American Geophysical Union.
    <a href="https://doi.org/10.1002/2015wr017679">https://doi.org/10.1002/2015wr017679</a>
  chicago: Paschalis, Athanasios, Gabriel G. Katul, Simone Fatichi, Gabriele Manoli,
    and Peter Molnar. “Matching Ecohydrological Processes and Scales of Banded Vegetation
    Patterns in Semiarid Catchments.” <i>Water Resources Research</i>. American Geophysical
    Union, 2016. <a href="https://doi.org/10.1002/2015wr017679">https://doi.org/10.1002/2015wr017679</a>.
  ieee: A. Paschalis, G. G. Katul, S. Fatichi, G. Manoli, and P. Molnar, “Matching
    ecohydrological processes and scales of banded vegetation patterns in semiarid
    catchments,” <i>Water Resources Research</i>, vol. 52, no. 3. American Geophysical
    Union, pp. 2259–2278, 2016.
  ista: Paschalis A, Katul GG, Fatichi S, Manoli G, Molnar P. 2016. Matching ecohydrological
    processes and scales of banded vegetation patterns in semiarid catchments. Water
    Resources Research. 52(3), 2259–2278.
  mla: Paschalis, Athanasios, et al. “Matching Ecohydrological Processes and Scales
    of Banded Vegetation Patterns in Semiarid Catchments.” <i>Water Resources Research</i>,
    vol. 52, no. 3, American Geophysical Union, 2016, pp. 2259–78, doi:<a href="https://doi.org/10.1002/2015wr017679">10.1002/2015wr017679</a>.
  short: A. Paschalis, G.G. Katul, S. Fatichi, G. Manoli, P. Molnar, Water Resources
    Research 52 (2016) 2259–2278.
das_tickbox: '1'
date_created: 2026-07-27T12:30:23Z
date_published: 2016-03-01T00:00:00Z
date_updated: 2026-08-11T06:50:57Z
day: '01'
doi: 10.1002/2015wr017679
extern: '1'
fulldoi: https://doi.org/10.1002/2015wr017679
intvolume: '        52'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1002/2015WR017679
month: '03'
oa: 1
oa_version: Published Version
page: 2259-2278
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: Matching ecohydrological processes and scales of banded vegetation patterns
  in semiarid catchments
type: journal_article
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
volume: 52
year: '2016'
...