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  • SOILS, SEC 2 • GLOBAL CHANGE, ENVIRON RISK ASSESS, SUSTAINABLE LAND USE • RESEARCH ARTICLE
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Fine root production, turnover, and decomposition in a fast-growth Eucalyptus urophylla plantation in southern China

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Abstract

Purpose

A rapid increase of Eucalyptus plantation area in southern China has raised widespread attention in the field of ecology and forestry. It might be argued that fast-growth Eucalyptus would increase the consumption of resources and thus cause soil degradation. Fine root dynamics could provide insight into nutrient uptake or return. This study therefore focused on fine root production, turnover, and decomposition in a subtropical Eucalyptus urophylla plantation.

Materials and methods

Sequential coring method was used to estimate fine root production and turnover rate. Root decomposition rate and root nitrogen (N) and phosphorus (P) dynamics were determined using the litterbag method. In this study, roots were divided into three diameter classes: <1, 1–2, and 2–3 mm. We settled litterbags with all three different root diameter classes under the forest floor (0–10 cm) in winter, spring, and summer.

Results and discussion

The total production of fine roots at diameter <2 mm was 45.4 g m−2 year−1, and its turnover rate was 0.58 year−1. The roots at diameter <1 mm showed much greater production or turnover rate than those at diameter 1–2 mm. The root mass loss from litterbag across the three diameter classes (<1, 1–2, and 2–3 mm) was similar at the beginning period of 180 days, but significantly different later. The decomposition constant (k value) of roots estimated by exponential decay model decreased with increasing diameter class. In addition, the season of litterbag settlement also had effects on root mass loss. In root nutrient dynamics, the fractions of initial N immobilized increased with increasing diameter class. Root P at the three diameter classes showed a similar mineralization pattern.

Conclusions

Our studies on fine root production, turnover, and decomposition give some important insights into nutrient cycling between plant and soil in Eucalyptus plantations. Our results which show that fine roots had relatively low production and turnover rate partly explain the potential soil degradation under the short rotation systems. The variation of root dynamics among different diameter classes suggests that to accurately assess fine root roles, one should consider the effects of root diameter size.

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References

  1. Aerts R (1997) Climate, leaf litter chemistry and leaf litter decomposition in terrestrial ecosystems: a triangular relationship. Oikos 79:439–449

  2. Baddeley JA, Watson CA (2005) Influences of root diameter, tree age, soil depth and season on fine root survivorship in Prunus avium. Plant Soil 276:15–22

  3. Bloomfield J, Vogt KA, Vogt DJ (1993) Decay-rate and substrate quality of fine roots and foliage of 2 tropical tree species in the Luquillo-experimental-forest, Puerto-Rico. Plant Soil 150:233–245

  4. Bouillet JP, Laclau JP, Arnaud M, M'Bou AT, Saint-Andre L, Jourdan C (2002) Changes with age in the spatial distribution of roots of Eucalyptus clone in Congo: impact on water and nutrient uptake. For Ecol Manage 171:43–57

  5. Bouma TJ, Devisser R, Janssen J, Dekock MJ, Vanleeuwen PH, Lambers H (1994) Respiratory energy requirements and rate of protein turnover in vivo determined by the use of an inhibitor of protein synthesis and a probe to assess its effect. Physiol Plant 92:585–594

  6. Bouma TJ, Yanai RD, Elkin AD, Hartmond U, Flores-Alva DE, Eissenstat DM (2001) Estimating age-dependent costs and benefits of roots with contrasting life span: comparing apples and oranges. New Phytol 150:685–695

  7. Bremner JM, Mulvaney CS (1982) Nitrogen-total. In: Methods of soil analysis, part 2. Chemical and microbiological analysis, 2nd edn. ASA, Madison, pp 595–624

  8. Chen DM, Zhou LX, Wu JP, Hsu JN, Lin YB, Fu SL (2012) Tree girdling affects the soil microbial community by modifying resource availability in two subtropical plantations. Appl Soil Ecol 53:108–115

  9. Chen H, Harmon ME, Sexton J, Fasth B (2002) Fine-root decomposition and N dynamics in coniferous forests of the Pacific Northwest, USA. Can J For Res 32:320–331

  10. Cleveland CC, Liptzin D (2007) C:N:P stoichiometry in soil: is there a “Redfield ratio” for the microbial biomass? Biogeochemistry 85:235–252

  11. de Moraes Goncalves JL, Stape JL, Laclau JP, Smethurst P, Gava JL (2004) Silvicultural effects on the productivity and wood quality of eucalypt plantations. For Ecol Manage 193:45–61

  12. Eissenstat DM, Wells CE, Yanai RD, Whitbeck JL (2000) Building roots in a changing environment: implications for root longevity. New Phytol 147:33–42

  13. Eissenstat DM, Yanai RD (1997) The ecology of root lifespan. In: Begon M, Fitter AH (eds) Advances in ecological research, vol 27. Academic–Elsevier Science, London, pp 1–60

  14. Fan PP, Guo DL (2010) Slow decomposition of lower order roots: a key mechanism of root carbon and nutrient retention in the soil. Oecologia 163:509–515

  15. FAO (2001) Global forest resource assessment 2000. FAO Forestry Paper 140. Food and Agriculture Organization of the United Nations, Rome

  16. FAO (2006) World reference base for soil resources 2006. World soil resources report 103. Food and Agriculture Organization of the United Nations, Rome

  17. Fox TR, Allen HL, Albaugh TJ, Rubilar R, Carlson CA (2007) Tree nutrition and forest fertilization of pine plantations in the southern United States. South J Appl For 31:5–11

  18. Gill RA, Jackson RB (2000) Global patterns of root turnover for terrestrial ecosystems. New Phytol 147:13–31

  19. Hendrick RL, Pregitzer KS (1992) The demography of fine roots in a northern hardwood forest. Ecology 73:1094–1104

  20. Jackson RB, Manwaring JH, Caldwell MM (1990) Rapid physiological adjustment of roots to localized soil enrichment. Nature 344:58–60

  21. Jackson RB, Mooney HA, Schulze ED (1997) A global budget for fine root biomass, surface area, and nutrient contents. Proc Natl Acad Sci U S A 94:7362–7366

  22. Joslin JD, Gaudinski JB, Torn MS, Riley WJ, Hanson PJ (2006) Fine-root turnover patterns and their relationship to root diameter and soil depth in a C-14-labeled hardwood forest. New Phytol 172:523–535

  23. Jourdan C, Silva EV, Goncalves JLM, Ranger J, Moreira RM, Laclau JP (2008) Fine root production and turnover in Brazilian Eucalyptus plantations under contrasting nitrogen fertilization regimes. For Ecol Manage 256:396–404

  24. Katterer T, Fabiao A, Madeira M, Ribeiro C, Steen E (1995) Fine-root dynamics, soil-moisture and soil carbon content in a Eucalyptus-globulus plantation under different irrigation and fertilization regimes. For Ecol Manage 74:1–12

  25. Laclau JP, Arnaud M, Bouillet JP, Ranger J (2001) Spatial distribution of Eucalyptus roots in a deep sandy soil in the Congo: relationships with the ability of the stand to take up water and nutrients. Tree Physiol 21:129–136

  26. Langley JA, Hungate BA (2003) Mycorrhizal controls on below-ground litter quality. Ecology 84:2302–2312

  27. Li RH, Deng Q, Zhou GY, Zhang DQ (2011) Effect of incubation starting time on litter decomposition rate in a subtropical forest in China. Chinese Journal of Plant Ecology 35:699–706 (in Chinese with English abstract)

  28. Magill AH, Aber JD (1998) Long-term effects of experimental nitrogen additions on foliar litter decay and humus formation in forest ecosystems. Plant Soil 203:301–311

  29. Makita N, Hirano Y, Dannoura M, Kominami Y, Mizoguchi T, Ishii H, Kanazawa Y (2009) Fine root morphological traits determine variation in root respiration of Quercus serrata. Tree Physiol 29:579–585

  30. Manzoni S, Jackson RB, Trofymow JA, Porporato A (2008) The global stoichiometry of litter nitrogen mineralization. Science 321:684–686

  31. McClaugherty CA, Aber JD, Melillo JM (1984) Decomposition dynamics of fine roots in forested ecosystems. Oikos 42:378–386

  32. Moore TR, Trofymow JA, Prescott CE, Fyles J, Titus BD (2006) Patterns of carbon, nitrogen and phosphorus dynamics in decomposing foliar litter in Canadian forests. Ecosystems 9:46–62

  33. O'Grady AP, Worledge D, Battaglia M (2005) Temporal and spatial changes in fine root distributions in a young Eucalyptus globulus stand in southern Tasmania. For Ecol Manage 214:373–383

  34. Olson JS (1963) Energy storage and the balance of producers and decomposers in ecological systems. Ecology 44:322–331

  35. Ostertag R, Hobbie SE (1999) Early stages of root and leaf decomposition in Hawaiian forests: effects of nutrient availability. Oecologia 121:564–573

  36. Ostonen I, Helmisaari HS, Borken W, Tedersoo L, Kukumagi M, Bahram M, Lindroos AJ, Nojd P, Uri V, Merila P, Asi E, Lohmus K (2011) Fine root foraging strategies in Norway spruce forests across a European climate gradient. Glob Chang Biol 17:3620–3632

  37. Parton W, Silver WL, Burke IC, Grassens L, Harmon ME, Currie WS, King JY, Adair EC, Brandt LA, Hart SC, Fasth B (2007) Global-scale similarities in nitrogen release patterns during long-term decomposition. Science 315:361–364

  38. Persson H (1978) Root dynamics in a young Scots pine stand in Central Sweden. Oikos 30:508–519

  39. Persson H (1980) Spatial-distribution of fine-root growth, mortality and decomposition in a young Scots pine stand in central Sweden. Oikos 34:77–87

  40. Pregitzer KS, DeForest JL, Burton AJ, Allen MF, Ruess RW, Hendrick RL (2002) Fine root architecture of nine North American trees. Ecol Monogr 72:293–309

  41. Pregitzer KS, Kubiske ME, Yu CK, Hendrick RL (1997) Relationships among roof branch order, carbon, and nitrogen in four temperate species. Oecologia 111:302–308

  42. Pregitzer KS, Laskowski MJ, Burton AJ, Lessard VC, Zak DR (1998) Variation in sugar maple root respiration with root diameter and soil depth. Tree Physiol 18:665–670

  43. Ryan MG, Hubbard RM, Pongracic S, Raison RJ, McMurtrie RE (1996) Foliage, fine-root, woody-tissue and stand respiration in Pinus radiata in relation to nitrogen status. Tree Physiol 16:333–343

  44. Silver WL, Miya RK (2001) Global patterns in root decomposition: comparisons of climate and litter quality effects. Oecologia 129:407–419

  45. Sun T, Mao ZJ (2011) Functional relationships between morphology and respiration of fine roots in two Chinese temperate tree species. Plant Soil 346:375–384

  46. Vogt KA, Grier CC, Gower ST, Sprugel DG, Vogt DJ (1986) Overestimation of net root production: a real or imaginary problem? Ecology 67:577–579

  47. Vogt KA, Vogt DJ, Bloomfield J (1998) Analysis of some direct and indirect methods for estimating root biomass and production of forests at an ecosystem level. Plant Soil 200:71–89

  48. Waldrop MP, Zak DR (2006) Response of oxidative enzyme activities to nitrogen deposition affects soil concentrations of dissolved organic carbon. Ecosystems 9:921–933

  49. Wang X, Zhao J, Wu J, Chen H, Lin Y, Zhou L, Fu S (2011) Impacts of understory species removal and/or addition on soil respiration in a mixed forest plantation with native species in southern China. For Ecol Manage 261:1053–1060

  50. Wells CE, Eissenstat DM (2001) Marked differences in survivorship among apple roots of different diameters. Ecology 82:882–892

  51. Wen DZ, Wei P, Kong GH, Ye WH (1999) Production and turnover rate of fine roots in two lower subtropical forest sites at Dinghushan. Acta Phytoecologica Sinica 23:361–369 (in Chinese with English abstract)

  52. Wu JP, Liu ZF, Wang XL, Sun YX, Zhou LX, Lin YB, Fu SL (2011a) Effects of understory removal and tree girdling on soil microbial community composition and litter decomposition in two Eucalyptus plantations in South China. Funct Ecol 25:921–931

  53. Wu JP, Liu ZF, Chen DM, Huang GM, Zhou LX, Fu SL (2011b) Understory plants can make substantial contributions to soil respiration: Evidence from two subtropical plantations. Soil Biol Biochem 43:2355–2357

  54. Xu ZH, Ward S, Chen CR, Blumfield T, Prasolova N, Liu JX (2008) Soil carbon and nutrient pools, microbial properties and gross nitrogen transformations in adjacent natural forest and hoop pine plantations of subtropical Australia. J Soils Sediments 8:99–105

  55. Xu DP, Dell B (2003) Nutrient management of eucalypt plantations in South China. Eucalyptus plantations: research, management and development. Proceedings of the International Symposium, Guangzhou, China, pp 269–289

  56. Yang YS, Chen GS, Guo HF, Lin P (2004) Decomposition dynamic of fine roots in a mixed forest of Cunninghamia lanceolata and Tsoongiodendron odorum in mid-subtropics. Ann For Sci 61:65–72

  57. Zhang L, Xu ZH, Patel B (2009) Culture-dependent and culture-independent microbial investigation of pine litters and soil in subtropical Australia. J Soils Sediments 9:148–160

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Acknowledgments

This study was supported by 973 Program 2011CB403202. We thank Dr. Wenjuan Huang for her help in English improvement. We thank Dingsheng Mo for his help in litterbag preparation and Shengxing Fu for his help in sampling. We also thank Zhuoyin Lai, Hongying Li, and Juan Miao for their help in root chemical analysis.

Author information

Correspondence to Junhua Yan.

Additional information

Responsible editor: Hailong Wang

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Xu, W., Liu, J., Liu, X. et al. Fine root production, turnover, and decomposition in a fast-growth Eucalyptus urophylla plantation in southern China. J Soils Sediments 13, 1150–1160 (2013). https://doi.org/10.1007/s11368-013-0718-y

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Keywords

  • Decomposition constant (k value)
  • Eucalyptus plantations
  • Fine roots
  • Litterbag settlement season
  • Root diameter class
  • Soil temperature