Root dynamics and demography in shortgrass steppe under elevated CO2, and comments on minirhizotron methodology

Global Change Biology

Volumn 11, Issue 10, 2005, Pages 1837-1855

  Milchunas, Daniel G ^a   Morgan, J A ^b   Mosier, A R ^a,b   LeCain, D R ^b  

^a Department of Environmental and Radiological Health Sciences   (United States)

^b AGRICULTURAL RESEARCH SERVICE   (United States)

Author keywords

Belowground decomposition production synchrony; Belowground net primary production; Carbon dioxide; Drought; Life span of roots; Methods for belowground production; Root diameter and branching; Root turnover; Semiarid grassland; Water stress

Indexed keywords

CARBON DIOXIDE; DEMOGRAPHY; DROUGHT; GRASSLAND; NET PRIMARY PRODUCTION; ROOT; STEPPE; WATER STRESS;

EID: 32544449955     PISSN: 13541013     EISSN: 13652486     Source Type: Journal    
DOI: 10.1111/j.1365-2486.2005.001009.x     Document Type: Article

References (67)

1. Alcamo J, Kreileman GJJ, Bollen JC et al. (1996) Baseline scenarios of global environmental change. Global Environmental Change, 6, 261-303.
2. 2. New Phytologist, 147, 73-85.
3. 2 and drought. Functional Ecology, 6, 324-333.
4. Chaudhuri UN, Kirkham MB, Kanemasu ET (1990) Root growth of winter wheat under elevated carbon dioxide and drought. Crop Science, 30, 853-857.
5. Coleman DC (1976) A review of root production processes and their influence on soil biota in terrestrial ecosystems. In: The Role of Terrestrial and Aquatic Organisms in Decomposition Processes (eds Anderson JM, Macfadyen A), pp. 417-434. Blackwell Scientific Publications, Oxford.
6. 2: Implications for plants, soil biota and ecosystem processes. Plant and Soil, 165, 1-6.
7. 2 on fine root length and distribution in an oak-palmetto scrub ecosystem in central Florida. Global Change Biology, 2, 143-148.
8. Del Castillo D, Acock B, Reddy VR et al. (1989) Elongation and branching of roots on soybean plants in a carbon dioxide enriched aerial environment. Agronomy Journal, 81, 692-695.
9. Diaz S, Grime JP, Harris J et al. (1993) Evidence of a feedback mechanism limiting plant response to elevated carbon dioxide. Nature, 364, 616-617.
10. Eissenstat DM, Wells CE, Yanai RD et al. (2000) Building roots in a changing environment: Implications for root longevity. New Phytologist, 147, 33-42.
11. Eissenstat DM, Yanai RD (1997) The ecology of root lifespan. Advances in Ecological Research, 27, 1-60.
12. Eissenstat DM, Yanai RD (2002) Root lifespan, efficiency, and turnover. In: Plant Roots: The Hidden Half (eds Waisel Y, Eshel A, Kafkafi U), pp. 221-238. Marcel Dekker, Inc, New York.
13. 2. Plant and Soil, 254, 291-303.
14. 2: Implications from the plant to the global scale. Plant, Cell and Environment, 18, 1214-1225.
15. Fitter AH, Graves JD, Wolfenden J et al. (1997) Root production and turnover and carbon budgets of two contrasting grasslands under ambient and elevated atmospheric carbon dioxide concentrations. New Phytologist, 137, 247-255.
16. 2 increases water availability in a water-limited grassland ecosystem. Journal of the American Water Resources Association, 33, 1033-1039.
17. Gaudinski JB, Trumbore SE, Davidson EA et al. (2001) The age of fine-root carbon in three forests of the eastern United States measured by radiocarbon. Oecologia, 129, 420-429.
18. Gill R, Burke IC, Lauenroth WK et al. (2002) Root longevity and turnover in the shortgrass steppe: Influence of diameter and depth. Plant Ecology, 159, 241-251.
19. Gill RA, Jackson RB (2000) Global patterns of root turnover for terrestrial ecosystems. New Phytologist, 147, 13-31.
20. Hendrick RL, Pregitzer KS (1993) The dynamics of fine root length, biomass and nitrogen content in two northern hardwood ecosystems. Canadian Journal of Forest Research, 23, 2507-2520.
21. Higgins PAT, Jackson RB, Des Rosiers JM et al. (2002) Root production and demography in a California annual grassland under elevated atmospheric carbon dioxide. Global Change Biology, 8, 841-850.
22. 2. Oecologia, 105, 74-80.
23. Johnson MG, Tingey DT, Phillips DL et al. (2001) Advancing fine root research with minirhizotrons. Environmental and Experimental Botany, 45, 263-289.
24. King JY, Milchunas DG, Mosier AR et al. (2003) Initial impacts of altered UVB radiation on plant growth and decomposition in shortgrass steppe. In: Ultraviolet Ground- and Space-Based Measurements, Models, and Effects III. SPIE Proceedings, Vol. 5156 (eds Slusser JR, Herman JR, Gao W), pp. 384-395. International Soc. Optical Eng, Bellingham, WA.
25. King JY, Mosier AR, Morgan JA et al. (2004) Plant nitrogen dynamics in shortgras steppe under elevated atmospheric carbon dioxide. Ecosystems, 7, 147-160.
26. Lauenroth WK, Milchunas DG (1991) The shortgrass steppe. In: Natural Grasslands, Introduction and Western Hemisphere (ed. Coupland RT), pp. 183-226. Ecosystems of the World 8A. Elsevier, Amsterdam.
27. Lauenroth WK, Sala OE, Milchunas DG et al. (1987) Root dynamics of Bouteloua gracilis during short-term recovery from drought. Functional Ecology, 1, 117-124.
28. 2. Annals of Botany, 92, 41-52.
29. Manski GGB, Vlek PLG (2002) Root architecture -wheat as a model plant. In: Plant Roots: The Hidden Half (eds Waisel Y, Eshel A, Kafkafi U), pp. 249-259. Marcel Dekker, Inc, New York.
30. Matamala R, Gonzàlez-Meler MA, Jastrow JD et al. (2003) Impacts of fine root turnover on forest NPP and soil C sequestration potential. Science, 302, 1385-1387.
31. Milchunas DG, Lauenroth WK (1989) Three-dimensional distribution of plant biomass in relation to grazing and topography in the shortgrass steppe. Oikos, 55, 82-86.
32. 14 turnover. Ecology, 73, 593-607.
33. Milchunas DG, Lauenroth WK (2001) Belowground primary production by carbon isotope decay and long-term root biomass dynamics. Ecosystems, 4, 139-150.
34. Milchunas DG, Lauenroth WK, Chapman PL et al. (1989) Plant communities in relation to grazing, topography, and precipitation in a semiarid grassland. Vegetatio, 80, 11-23.
35. 2. Plant and Soil 268, 111-122.
36. 2 and grazing effects on a shortgrass steppe: Forage quality vs. quantity for ruminants. Agriculture, Ecosystems and Environment (in press).
37. Milchunas DG, Sala OE, Lauenroth WK (1988) A generalized model of the effects of grazing by large herbivores on grassland community structure. American Naturalist, 132, 87-106.
38. 4 grasses of the Colorado shortgrass steppe. Global Change Biology, 7, 451-466.
39. 2 enhances productivity but alters species composition and reduces forage quality in the Colorado shortgrass steppe. Ecological Applications, 14, 208-219.
40. 2. Oecologia, 140, 11-25.
41. 2 in the Colorado shortgrass steppe. Atmospheric Chemistry and Physics, 3, 1703-1708.
42. 2 increases soil moisture and enhances plant water relations in a long-term field study in semi-arid shortgrass steppe of Colorado. Plant and Soil, 259, 169-179.
43. Norby RJ (1994) Issues and perspectives for investigating root responses to elevated atmospheric carbon dioxide. Plant and Soil, 165, 9-20.
44. Norby RJ, Jackson RB (2000) Root dynamics and global change: Seeking an ecosystem perspective. New Phytologist, 147, 3-12.
45. 2-do photosynthetic and productivity data from FACE experiments support early predictions? New Phytologist, 162, 253-280.
46. 2 enrichment. In: Carbon Dioxide and Terrestrial Ecosystems (eds Koch GW, Mooney HA), pp. 87-103. Academic Press, San Diego.
47. Owensby CE, Cochran RM, Auen LM (1996) Effects of elevated carbon dioxide on forage quality for ruminants. In: Title: Carbon Dioxide, Populations and Communities, Physiological Ecology Series (eds Koerner C, Bazzaz F), pp. 363-371. Academic Press, New York.
48. 2. Ecological Applications, 3, 644-653.
49. 2. Global Change Biology, 5, 49 -506.
50. Pages L, Bengough AG (1997) Modeling minirhizotron observations to test experimental procedures. Plant and Soil, 189, 81-89.
51. 2 effects and soil water feedbacks on soil respiration components in a Colorado grassland. Global Biogeochemical Cycles, 17, 15-1-15-13.
52. 2. In: Stable Isotopes and Biosphere -Atmosphere Interactions: Processes and Biological Controls (eds Flanagan LB, Ehleringer JR, Pataki DE, pp. 182-198. Elsevier, San Diego.
53. 2 in a semi-arid grassland. New Phytologist, 162, 447-458.
54. Polomski J, Kuhn N (2002) Root research methods. In: Plant Roots, The Hidden Half (eds Waisel Y, Eshel A, Kafkafi U), pp. 295-321. Marcel Dekker, Inc, New York.
55. 2 x soil N availability experiment. Ecological Applications, 10, 18-33.
56. 2 and plant structure: A review. Global Change Biology, 5, 807-837.
57. Rogers HH, Peterson CM, McCrimmon JN et al. (1992) Response of roots to elevated atmospheric carbon dioxide. Plant, Cell and Environment, 15, 749-752.
58. 2 enrichment with emphasis on roots and the rhizosphere. Environmental Pollution, 83, 155-189.
59. Schoettle AW, Fahey TJ (1994) Foliage and fine root longevity of pines. Ecological Bulletins, 43, 136-153.
60. Sims PL, Singh JS (1978) The structure and function of ten western North American grasslands. III. Net primary production, turnover, and efficiencies of energy capture and water use. Journal of Ecology, 66, 573-597.
61. Singh JS, Lauenroth WK, Hunt HW et al. (1984) Bias and random errors in estimation of net root production: A simulation approach. Ecology, 65, 1760-1764.
62. 2 concentration. Global Change Biology, 5, 107-121.
63. Van der Krift TAJ, Berendse F (2002) Root life spans of four grass species from habitats differing in nutrient availability. Functional Ecology, 16, 198-203.
64. 2 enrichment and soil water availability on spatial and seasonal patterns of wheat growth. Global Change Biology, 5, 519-529.
65. Wells CE, Eissenstst DM (2001) Marked differences in survivorship among apple roots of different diameters. Ecology, 82, 882-892.
66. 2 -implications for water-limited environments. Plant, Cell and Environment, 25, 319-331.
67. 2, fine roots and the response of soil microorganisms: A review and hypothesis. New Phytologist, 147, 201-222.