Ainsworth EA, Long SP. 2005. What have we learned from 15 years of free-air CO2
enrichment (FACE)? A meta-analytic review of the responses of photosynthesis, canopy properties and plant production to rising CO2
. New Phytologist 165: 351–372.PubMedCrossRef
Anderson LJ, Maherali H, Johnson HB, Polley HW, Jackson RB. 2001. Gas exchange and photosynthetic acclimation over subambient to elevated CO2 in a C-3-C-4 grassland. Global Change Biology 7: 693–707.CrossRef
Brady NC, Weil RR2002. The nature and properties of soils. Upper Saddle River, NJ: Prentice Hall.960p.
Diamond DD, Smeins FE. 1984. Remnant grassland vegetation and ecological affinities of the upper costal prairie of Texas. Southwestern Naturalist 29: 321–334.CrossRef
Dunne JA, Saleska SR, Fischer ML, Harte J. 2004. Integrating experimental and gradient methods in ecological climate change research. Ecology 85: 904–916.CrossRef
Epstein HE, Burke IC, Lauenroth WK. 2002. Regional patterns of decomposition and primary production rates in the US Great Plains. Ecology 83: 320–327.
Fay PA, Carlisle JD, Knapp AK, Blair JM, Collins SL. 2003. Productivity responses to altered rainfall patterns in a C4-dominated grassland. Oecologia 137: 245–251.PubMedCrossRef
Forster P, Ramaswamy V, Artaxo P, Berntsen T, Betts R, Fahey DW, Haywood J, Lean J, Lowe DC, Myhre G, Nganga J, Prinn R, Raga G, Schulz M, Van Dorland R. 2007. Changes in Atmospheric Constituents and in Radiative Forcing. Solomon S, Qin D, Manning M, Chen Z, Marquis M, Avery KB, Tignor M, Miller HL, editors. Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge, United Kingdom and New York, NY: Cambridge University Press. p129–234.
Gibson DJ, Hulbert LC. 1987. Effects of fire, topography and year-to-year climatic variation on species composition in tallgrass prairie. Vegetatio 72: 175–186.
Gill RA, Anderson LJ, Polley HW, Johnson HB, Jackson RB. 2006. Potential nitrogen constraints on soil carbon sequestration under low and elevated atmospheric CO2. Ecology 87: 41–52.PubMedCrossRef
Gill RA, Polley HW, Johnson HB, Anderson LJ, Maherali H, Jackson RB. 2002. Nonlinear grassland responses to past and future atmospheric CO2. Nature 417: 279–282.PubMedCrossRef
Hagedorn F, Spinnler D, Bundt M, Blaser P, Siegwolf R. 2003. The input and fate of new C in two forest soils under elevated CO2
. Global Change Biology 9: 862–871.CrossRef
Hassink J. 1996. Preservation of plant residues in soils differing in unsaturated protective capacity. Soil Science Society of America Journal 60: 487–491.
Jenkinson DA. 1977. Studies on the decomposition of plant material in soil. Journal of Soil Science 28: 424–434.CrossRef
Johnson JMF, Barbour NW, Weyers SL. 2007. Chemical composition of crop biomass impacts its decomposition. Soil Sci Soc Am J 71:155–62
Johnson HB, Polley HW, Mayeux HS. 1993. Increasing CO2 and plant-plant interactions: effects on natural vegetation. Vegetatio 104–105: 157–170.CrossRef
Johnson HB, Polley HW, Whitis RP. 2000. Elongated chambers for field studies across atmospheric CO2 gradients. Functional Ecology 14: 388–396.CrossRef
Kettler TA, Doran JW, Gilbert TL. 2001. Simplified method for soil particle-size determination to accompany soil-quality analyses. Soil Science Society of America Journal 65: 849–852.
Kimball BA. 1992. Cost comparisons among free-air CO2 enrichment, open-top chamber, and sunlit controlled-environment chamber methods of CO2 exposure. Critical Reviews in Plant Sciences 11: 265–270.
Lee JS, Usami T, Oikawa T. 2001. High performance of CO2-temperature gradient chamber newly built for studying the global warming effect on a plant population. Ecological Research 16: 347–358.CrossRef
Luo Y, Zhou X. 2006. Soil Respiration and the Environment. Burlington: Academic Press.
Mayeux HS, Johnson HB, Polley HW, Dumesnil MJ, Spanel GA. 1993. A controlled environment chamber for growing plants across a subambient CO2 gradient. Functional Ecology 7: 125–133.CrossRef
Mielnick PC, Dugas WA, Johnson HB, Polley HW, Sanabria J. 2001. Net grassland carbon flux over a subambient to superambient CO2 gradient. Global Change Biology 7: 747–754.CrossRef
Noy-Meir I. 1973. Desert ecosystems: environment and producers. Annual Review of Ecology and Systematics 4: 25–51.CrossRef
Oades JM. 1988. The retention of organic matter in soils. Biogeochemistry 5: 35–70.CrossRef
Paul EA, Morris SJ, Bohm S. 2001. The determination of soil C pool sizes and turnover rates: biophysical fractionation and tracers. In: Lal R, Kimble JM, Follett RF, Stewart BA, Eds. Assessment methods for soil carbon. Boca Raton, FL: CRC Press. p 193–206.
Piper JK. 1995. Composition of prairie plant communities on productive versus unproductive sites in wet and dry years. Canadian Journal of Botany 73: 1635–1644.CrossRef
Polley HW, Johnson HB, Derner JD. 2003. Increasing CO2 from subambient to superambient concentrations alters species composition and increases above-ground biomass in a C-3/C-4 grassland. New Phytologist 160: 319–327.CrossRef
Polley HW, Johnson HB, Fay PA, Sanabria J. 2008. Initial response of evapotranspiration from tallgrass prairie vegetation to CO2 at subambient to elevated concentrations. Functional Ecology 22: 163–171.
Polley HW, Johnson HB, Mayeux HS. 1992a. Carbon dioxide and water fluxes of C3 annuals and C4 perennials at subambient CO2 concentrations. Functional Ecology 6: 693–703.CrossRef
Polley HW, Johnson HB, Mayeux HS. 1992b. Growth and gas exchange of oats (Avena sativa) and wild mustard (Brassica kaber) at subambient CO2 concentrations. International Journal of Plant Sciences 153: 453–461.CrossRef
Polley HW, Johnson HB, Marino BD, Mayeux HS. 1993a. Increase in C3 plant water-use efficiency and biomass over Glacial to present CO2 concentrations. Nature 361: 61–64.CrossRef
Polley HW, Johnson HB, Mayeux HS, Malone SR. 1993b. Physiology and growth of wheat across a subambient carbon dioxide gradient. Annals of Botany 71: 347–356.CrossRef
Polley HW, Johnson HB, Mayeux HS. 1994. Increasing CO2: comparative responses of the C4 grass Schizachyrium and grassland invader Prosopis. Ecology 75: 976–988.CrossRef
Polley HW, Johnson HB, Mayeux HS. 1995. Nitrogen and water requirements of C3 plants grown at glacial to present carbon dioxide concentrations. Functional Ecology 9: 86–96.CrossRef
Polley HW, Johnson HB, Mayeux HS, Brown DA, White JWC. 1996. Leaf and plant water use efficiency of C4 species grown at glacial to elevated CO2 concentrations. International Journal of Plant Sciences 157: 164–170.CrossRef
Rawson HM, Gifford RM, Condon BN. 1995. Temperature gradient chambers for research on global environment change. I. Portable chambers for research on short-stature vegetation. Plant Cell and Environment 18: 1048–1054.CrossRef
Rogers A, Ainsworth EA, Kammann C. 2006. FACE Value: Perspectives on the Future of Free-Air CO2 Enrichment Studies. Nosberger J, Long SP, Norby RJ, Stitt M, editors. Managed Ecosystems and CO2: Case Studies, Processes, and Perspectives. Berlin: Springer. p431–449.
SAS Institute Inc The SAS System for Windows. [9.1.3]. 2003. Cary, NC, SAS Institute.
Ward JK, Tissue DT, Thomas RB, Strain BR. 1999. Comparative responses of model C3 and C4 plants to drought in low and elevated CO2. Global Change Biology 5: 857–867.CrossRef