BazzazF.A. 1990. The response of natural ecosystems to the rising global CO2 levels. Annu. Rev. Ecol. Syst. 21: 167–196.
BunceJ.A. 1992a. Light, temperature and nutrients as factors in photosynthetic adjustment to an elevated concentration of carbon dioxide. Physiol. Plant. 86: 173–179.
BunceJ.A. 1992b. Stomatal conductance, photosynthesis and respiration of temperate deciduous tree seedlings grown outdoors at an elevated concentration of carbon dioxide. Plant. Cell and Environ. 15: 541–549.
CeulemansR. & MousseauM. 1994. Effects of elevated atmospheric CO2 on woody plants. New Phytol. 127: 425–446.
CureJ.D. & AcockB. 1986. Crop responses to carbon dioxide doubling: a literature survey. Agric. For. Meteor. 38: 127–145.
DahlmanR.C. 1993. CO2 and plants: revisited. Vegetatio 104/105: 339–355.
EamusD. & EamusD. & JarvisP.G. 1989. The direct effects of increase in the global atmospheric CO2 concentration on natural and commercial temperate trees and forests. Adv. Ecol. Res. 19: 1–55.
FahnestockJ.T. & KnappA.K. 1994. Plant responses to selective grazing by bison: interactions between light, herbivory and water stress. Vegetatio 115: 123–131.
FreemanC.C. & HulbertL.C. 1985. An annotated list of the vascular flora of Konza Prairie Research Natural Area, Kansas. Trans. Kan. Acad. Science 88: 84–115.
GundersonC.A. & WullschlegerS.D. 1994. Photosynthetic acclimation in trees to rising atmospheric CO2: a broader perspective. Photosyn. Res. 39: 369–388.
HamJ.M., OwensbyC.E., CoyneP.I. & BremerD.J. 1995. Fluxes of CO2 and water vapor from a prairie ecosystem exposed to ambient and elevated CO2. Argic. For. Meteor. 77: 73–93.
HuntR., HandD.W., HannahM.A. & NealA.M. 1991. Responses to CO2 enrichment in 27 herbaceous species. Funct. Ecol. 5: 410–421.
JacksonR.B., SalaO.E., FieldC.B. & MooneyH.A. 1994. CO2 alters water use, carbon gain, and yield for the dominant species in a natural grassland. Oecologia 98: 257–262.
KnappA.K. 1992. Leaf gas exchange in Quercus macrocarpa (Fagaceae): rapid stomatal responses to variability in sunlight in a tree growth form. Am. J. Bot. 79: 599–604.
KnappA.K. 1993. Gas exchange dynamics in C3 and C4 grasses: consequences of differences in stomatal conductance. Ecology 74: 113–123.
KnappA.K., HamerlynckE.P. & OwensbyC.E. 1993. Photosynthetic and water relations responses to elevated CO2 in the C4 grass Andropogon gerardii. Intl. J. Plant Sci. 154: 459–466.
KnappA.K., FahnestockJ.T. & OwensbyC.E. 1994. Elevated atmospheric CO2 alters stomatal responses to variable sunlight in a C4 grass. Plant, Cell and Environ. 17: 189–195.
KnappA.K. & SmithW.K. 1989. Influence of growth form and water relations on stomatal and photosynthetic responses to variable sunlight in subalpine plants. Ecology 70: 1069–1082.
LeadleyP.W. & DrakeB.G. 1993. Open top chambers for exposing plant canopies to elevated CO2 concentration and for measuring net gas exchange. Vegetatio 104/105: 3–15.
LuoY. & StrainB.R. 1992. Leaf water status in velvetleaf under long-term interactions of water stress, atmospheric humidity, and carbon dioxide. J. Plant Physiol. 139: 600–604.
MansfieldT.A., HetheringtonA.M. & AtkinsonC.J. 1990. Some current aspects of stomatal physiology. Annu. Rev. Plant Physiol. Plant Molec. Biol. 41: 55–75.
MasleJ. 1992. Will plant performance on soils prone to drought or with high mechanical impedance to root penetration be improved under elevated atmospheric CO2 concentration? Austl. J. Bot. 40: 491–500.
MorisonJ.I.L. 1993. Response of plants to CO2 under water limited conditions. Vegetatio 104/105: 193–209.
MorseS.R., WayneP., MiaoS.L. & BazzazF.A. 1993. Elevated CO2 and drought alter tissue water relations of birch (Betula populifolia Marsh.) seedlings. Oecologia 95: 599–602.
OwensbyC.E., CoyneP.I., HamJ.M., AuenL.M. & KnappA.K. 1993. Biomass production in a tallgrass prairie ecosystem exposed to ambient and elevated CO2. Ecol. Applic. 3: 644–653.
PaezA., HellmersH. & StrainB.R. 1983. CO2 enrichment, drought stress and growth of Alaska pea plants (Pisum sativum). Physiol. Plant. 58: 161–165.
ReginatoR.J. & VanBavelC.H.M. 1964. Soil water measurement with gamma attenuation. Soil Sci. Soc. Am. Proc. 28: 721–724.
RetuertoR. & WoodwardF.I. 1993. The influences of increased CO2 and water supply on growth, biomass allocation and water use efficiency of Sinapis alba L. grown under different wind speeds. Oecologia 94: 415–427.
RogersH.H., RunionG.B. & KrupaS.V. 1994. Plant responses to atmospheric CO2 enrichment with emphasis on roots and the rhizosphere. Environ. Pollut. 83: 155–189.
RogersH.H., SionitN., CureJ.D., SmithJ.M. & BinghamG.E. 1984. Influence of elevated carbon dioxide on water relations of soybeans. Plant Physiol. 74: 233–238.
SamuelsonL.J. & SeilerJ.R. 1993. Interactive role of elevated CO2, nutrient limitations, and water stress in the growth responses of red spruce seedlings. For. Sci. 39: 348–358.
SvejcarT.J. & BrowningJ.A. 1988. Growth and gas exchange of Andropogon gerardii as influenced by burning. J. Range Manage. 41: 239–244.
ThomasR.B. & StrainB.R. 1991. Root restriction as a factor in photosynthetic acclimation of cotton seedlings grown in elevated carbon dioxide. Plant Physiol. 96: 627–634.
TschaplinskiT.J., NorbyR.J. & WullschlegerS.D. 1993. Responses of loblolly pine seedlings to elevated CO2 and fluctuating water supply. Tree Physiol. 13: 283–296.
TurnerC.T., KneislerJ.R. & KnappA.K. 1995. Comparative gas exchange and nitrogen responses of the dominant C4 grass, Andropogon gerardii, and five C3 forbs to fire and topographic position in tallgrass prairie during a wet year. Intl. J. Plant Sci. 156: 216–226.
TyreeM.T. & AlexanderJ.D. 1993. Plant water relations and the effects of elevated CO2: a review and suggestions for future research. Vegetatio 104/105: 47–62.