Issue Date
1994-09-01Keywords
water binding capacitywater content
water balance
evapotranspiration
rain
biomass
Eragrostis lehmanniana
introduced species
Arizona
soil water
Metadata
Show full item recordCitation
Frasier, G. W., & Cox, J. R. (1994). Water balance in pure stand of Lehmann lovegrass. Journal of Range Management, 47(5), 373-378.Publisher
Society for Range ManagementJournal
Journal of Range ManagementDOI
10.2307/4002333Additional Links
https://rangelands.org/Abstract
Lehmann lovegrass (Eragrostis lehmanniana Nees), an introduced warm season grass, has invaded grasslands in southern Arizona, in many areas replacing the native warm-season grasses. A water balance evaluation in a pure stand of Lehmann lovegrass showed that more soil water was used through evapotranspiration than occurred as precipitation during 2 years of a 3-year study period. During the winter season, an appreciable amount of water was used by Lehmann lovegrass or lost by evaporation from the soil surface. The remaining available soil water was used in the spring dry period. In the dry early spring the soil water contents (to depths of 120 cm) were less than the traditional wilting point tension of -1.5 MPa. The invasion of Lehmann lovegrass into grasslands of southern Arizona is partially related to its ability to utilize soil water during parts of the year when the native species are dormant and also to extract water from the soil profile to very low water contents.Type
textArticle
Language
enISSN
0022-409Xae974a485f413a2113503eed53cd6c53
10.2307/4002333