thumbnail

Tolerances of plants to drought and salinity in the western United States

Water-Resources Investigations Report 88-4070

By:
, ,

Links

Abstract

Differing capacities of plant species to tolerate drought and salinity are causative factors for presence of species and communities in various habitats. It is proposed that minimum xylem pressure potentials measured are indicative of drought tolerance and that minimum cell osmotic potentials are indicative of salt tolerance of plant species. Of 85 species measured, Nuttall saltbush (Atriplex nuttallii nuttallii) was found to be the most drought tolerant. Saltbrush (Atriplex confertifolia, A. nuttallii, A. canescens, and A. torreyi) had the lowest cell osmotic potentials measured. Although pickleweed (Allenrolfea occidentalis) grows in the saltiest soil measured, it did not have the lowest cell osmotic potential. This apparent inconsistency may be explained by the succulent characteristics of pickleweed. (USGS)

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Tolerances of plants to drought and salinity in the western United States
Series title:
Water-Resources Investigations Report
Series number:
88-4070
Edition:
-
Year Published:
1988
Language:
ENGLISH
Publisher:
U.S. Geological Survey,
Description:
iv, 16 p. :ill., maps ;28 cm.