Responses of the C[sub 4] grass Schizachyrium and grassland invader Prosopis over glacial to present CO[sub 2] concentrations
Conference
·
· Bulletin of the Ecological Society of America; (United States)
OSTI ID:6201846
- USDA-ARS, Temple, TX (United States)
The woody C[sub 3] Prosopis glandulosa and perennial C[sub 4] grass Schizachyrium scoparium were grown along a daytime gradient from 340 to 200 [mu]mol/mol CO[sub 2] to determine effects of the increase in atmospheric [CO[sub 2]] since glaciation on growth, resource use, and competitive interactions of a species from C[sub 4]-dominated grasslands in the US and the invasive legume P. glandulosa. Increasing [CO[sub 2]] stimulated N[sub 2]-fixation and elicited comparable relative increases in leaf photo- synthesis and water use efficiency in the shrub. Production and nitrogen use efficiency increased linearly with [CO[sub 2]] in P. glandulosa plants that were grown alone, but the CO[sub 2] effect was negated in plants grown with S. scoparium. There was no effect of [CO[sub 2]] on production or water use efficiency of the C[sub 4] grass. Rising [CO[sub 2]] may have contributed to the historical proliferation of P. glandulosa on C[sub 4] grasslands where the woody seedlings can rapidly escape competition with grasses.
- OSTI ID:
- 6201846
- Report Number(s):
- CONF-930798--
- Conference Information:
- Journal Name: Bulletin of the Ecological Society of America; (United States) Journal Volume: 74:2
- Country of Publication:
- United States
- Language:
- English
Similar Records
Increasing CO[sub 2]: Comparative responses of the C[sub 4] grass Schizachyrium and grassland invader Prosopis
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Leaf and plant water use efficiency of C{sub 4} species grown at glacial to elevated CO{sub 2} concentrations
Journal Article
·
Wed Jun 01 00:00:00 EDT 1994
· Ecology; (United States)
·
OSTI ID:7008365
Invasion promotes invasion: Facilitation of C 3 perennial grass dominance in mixed C 3 /C 4 grassland by an invasive C 3 woody sprouter ( Prosopis glandulosa )
Journal Article
·
Sun Nov 03 19:00:00 EST 2019
· Ecology and Evolution
·
OSTI ID:1623550
Leaf and plant water use efficiency of C{sub 4} species grown at glacial to elevated CO{sub 2} concentrations
Journal Article
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Thu Feb 29 23:00:00 EST 1996
· International Journal of Plant Sciences
·
OSTI ID:379416
Related Subjects
54 ENVIRONMENTAL SCIENCES
540220 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AVAILABILITY
BIOLOGICAL EFFECTS
C4 SPECIES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
ECOSYSTEMS
GRAMINEAE
GROWTH
LILIOPSIDA
MAGNOLIOPHYTA
NUTRIENTS
OXIDES
OXYGEN COMPOUNDS
PLANT GROWTH
PLANTS
POPULATION DYNAMICS
RANGELANDS
TERRESTRIAL ECOSYSTEMS
540220 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AVAILABILITY
BIOLOGICAL EFFECTS
C4 SPECIES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
ECOSYSTEMS
GRAMINEAE
GROWTH
LILIOPSIDA
MAGNOLIOPHYTA
NUTRIENTS
OXIDES
OXYGEN COMPOUNDS
PLANT GROWTH
PLANTS
POPULATION DYNAMICS
RANGELANDS
TERRESTRIAL ECOSYSTEMS