Lehmann lovegrass in southeastern Arizona: biomass production and disappearance

J. R. Cox, George B Ruyle, B. A. Roundy

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Eragrostis lehmanniana, a perennial bunchgrass from southern Africa, has recently replaced native grasses on 200 000 ha in SE Arizona. Live biomass was present throughout the year but August peaks were almost 2000 kg/ha in 1 wet summer, 1430 kg/ha in 2 normal summers, and 960 kg/ha in 1 dry summer. Recent-dead approached zero in August when live peaked, and slowly accumulated in fall and winter. Old-dead peaked before the summer rains when temperature peaked and rapidly disappeared following snow accumulations in winter. Litter was highly variable among sampling areas, plots and sampling dates but amounts usually peaked before the summer rains and decreased in winter and spring. Lehmann lovegrass annually produces 3-4 times more green forage than native grasses, but cattle prefer native grasses. -from Authors

Original languageEnglish (US)
Pages (from-to)367-372
Number of pages6
JournalJournal of Range Management
Volume43
Issue number4
StatePublished - 1990
Externally publishedYes

Fingerprint

Eragrostis lehmanniana
biomass production
summer
biomass
grass
grasses
winter
rain
snow accumulation
sampling
Southern Africa
snow
forage
cattle
litter
temperature

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Ecology

Cite this

Lehmann lovegrass in southeastern Arizona : biomass production and disappearance. / Cox, J. R.; Ruyle, George B; Roundy, B. A.

In: Journal of Range Management, Vol. 43, No. 4, 1990, p. 367-372.

Research output: Contribution to journalArticle

@article{0f30e504eef64c0a9b49092b4396c66d,
title = "Lehmann lovegrass in southeastern Arizona: biomass production and disappearance",
abstract = "Eragrostis lehmanniana, a perennial bunchgrass from southern Africa, has recently replaced native grasses on 200 000 ha in SE Arizona. Live biomass was present throughout the year but August peaks were almost 2000 kg/ha in 1 wet summer, 1430 kg/ha in 2 normal summers, and 960 kg/ha in 1 dry summer. Recent-dead approached zero in August when live peaked, and slowly accumulated in fall and winter. Old-dead peaked before the summer rains when temperature peaked and rapidly disappeared following snow accumulations in winter. Litter was highly variable among sampling areas, plots and sampling dates but amounts usually peaked before the summer rains and decreased in winter and spring. Lehmann lovegrass annually produces 3-4 times more green forage than native grasses, but cattle prefer native grasses. -from Authors",
author = "Cox, {J. R.} and Ruyle, {George B} and Roundy, {B. A.}",
year = "1990",
language = "English (US)",
volume = "43",
pages = "367--372",
journal = "Rangeland Ecology and Management",
issn = "1550-7424",
publisher = "Society for Range Management",
number = "4",

}

TY - JOUR

T1 - Lehmann lovegrass in southeastern Arizona

T2 - biomass production and disappearance

AU - Cox, J. R.

AU - Ruyle, George B

AU - Roundy, B. A.

PY - 1990

Y1 - 1990

N2 - Eragrostis lehmanniana, a perennial bunchgrass from southern Africa, has recently replaced native grasses on 200 000 ha in SE Arizona. Live biomass was present throughout the year but August peaks were almost 2000 kg/ha in 1 wet summer, 1430 kg/ha in 2 normal summers, and 960 kg/ha in 1 dry summer. Recent-dead approached zero in August when live peaked, and slowly accumulated in fall and winter. Old-dead peaked before the summer rains when temperature peaked and rapidly disappeared following snow accumulations in winter. Litter was highly variable among sampling areas, plots and sampling dates but amounts usually peaked before the summer rains and decreased in winter and spring. Lehmann lovegrass annually produces 3-4 times more green forage than native grasses, but cattle prefer native grasses. -from Authors

AB - Eragrostis lehmanniana, a perennial bunchgrass from southern Africa, has recently replaced native grasses on 200 000 ha in SE Arizona. Live biomass was present throughout the year but August peaks were almost 2000 kg/ha in 1 wet summer, 1430 kg/ha in 2 normal summers, and 960 kg/ha in 1 dry summer. Recent-dead approached zero in August when live peaked, and slowly accumulated in fall and winter. Old-dead peaked before the summer rains when temperature peaked and rapidly disappeared following snow accumulations in winter. Litter was highly variable among sampling areas, plots and sampling dates but amounts usually peaked before the summer rains and decreased in winter and spring. Lehmann lovegrass annually produces 3-4 times more green forage than native grasses, but cattle prefer native grasses. -from Authors

UR - http://www.scopus.com/inward/record.url?scp=0025594117&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0025594117&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0025594117

VL - 43

SP - 367

EP - 372

JO - Rangeland Ecology and Management

JF - Rangeland Ecology and Management

SN - 1550-7424

IS - 4

ER -