Tolerance of five riparian plants from the lower Colorado River to salinity drought and inundation

Matthew W. Vandersande, Edward P. Glenn, James L Walworth

Research output: Contribution to journalArticle

89 Citations (Scopus)

Abstract

Two greenhouse experiments were conducted to compare the effects of salt stress and water stress on four native riparian species and one invasive species collected from the lower Colorado River, Mexico. Within a drying soil at the control salinity level, Populus fremontii, Salix gooddingii and Baccharis salicifolia were able to extract water from the soil equal to that of Tamarix ramosissima and Pluchea sericea. Yet, at elevated salinity levels T. ramosissima and P. sericea exhibited a superior water-use ability. Under flooded conditions all native riparian species outperformed T. ramosissima. The results show that the invasive species T. ramosissima has a competitive advantage over native species mainly with respect to salt tolerance. This suggests that pulse flooding along the river could reduce Tamarix's competitive advantage by flushing out accumulated salts from the bankside and subjecting T. ramosissima to prolonged inundation.

Original languageEnglish (US)
Pages (from-to)147-159
Number of pages13
JournalJournal of Arid Environments
Volume49
Issue number1
DOIs
StatePublished - 2001

Fingerprint

Tamarix ramosissima
Colorado River
tolerance
drought
salinity
salt
invasive species
river
Baccharis salicifolia
flushing
water stress
native species
Populus fremontii
Pluchea
water use
soil
flooding
Tamarix
Salix
flooded conditions

Keywords

  • Colorado River
  • Cotton-wood-Willow association
  • Drought
  • Inundation
  • Riparian wetlands
  • Salt stress
  • Saltcedar
  • Tamarix

ASJC Scopus subject areas

  • Earth-Surface Processes
  • Ecology

Cite this

Tolerance of five riparian plants from the lower Colorado River to salinity drought and inundation. / Vandersande, Matthew W.; Glenn, Edward P.; Walworth, James L.

In: Journal of Arid Environments, Vol. 49, No. 1, 2001, p. 147-159.

Research output: Contribution to journalArticle

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