Lignin Degradation in Foliar Litter of Two Shrub Species from the Gap Center to the Closed Canopy in an Alpine Fir Forest

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• 作者：Wei He ; Fuzhong Wu ; Wanqin Yang ; Bo Tan ; Yeyi Zhao ; Qiqian Wu ; Min He
• 关键词：alpine forest ; freeze ; thaw cycle ; gap ; lignin degradation ; microbial biomass carbon ; shrub foliar litter ; snow cover
• 刊名：Ecosystems
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：19
• 期：1
• 页码：115-128
• 全文大小：1,592 KB
• 参考文献：Austin AT, Ballaré CL. 2010. Dual role of lignin in plant litter decomposition in terrestrial ecosystems. Proc Natl Acad Sci USA 107:4618–22.PubMedCentral CrossRef PubMed
  Baptist F, Yoccoz NG, Choler P. 2010. Direct and indirect control by snow cover over decomposition in alpine tundra along a snowmelt gradient. Plant Soil 328:397–410.CrossRef
  Berg B, McClaugherty C. 2003. Plant litter: decomposition, humus formation, carbon secuestration. Berlin, DE: Springer-Verlag, Berlin Heidelberg.CrossRef
  Bokhorst S, Metcalfe DB, Wardle DA. 2013. Reduction in snow depth negatively affects decomposers but impact on decomposition rates is substrate dependent. Soil Biol Biochem 62:157–64.CrossRef
  Brandt LA, King JY, Hobbie SE, Milchunas DG, Sinsabaugh RL. 2010. The role of photodegradation in surface litter decomposition across a grassland ecosystem precipitation gradient. Ecosystems 13:765–81.CrossRef
  Campbell JL, Mitchell MJ, Groffman PM, Christenson LM, Hardy JP. 2005. Winter in northeastern North America: a critical period for ecological processes. Front Ecol Environ 3:314–22.CrossRef
  Christenson LM, Mitchell MJ, Groffman PM, Lovett GM. 2010. Winter climate change implications for decomposition in northeastern forests: comparisons of sugar maple litter with herbivore fecal inputs. Glob Change Biol 16:2589–601.
  Cleveland CC, Reed SC, Keller AB, Nemergut DR, O’Neill SP, Ostertag R, Vitousek PM. 2014. Litter quality versus soil microbial community controls over decomposition: a quantitative analysis. Oecologia 174:283–94.CrossRef PubMed
  Cox P, Wilkinson SP, Anderson JM. 2001. Effects of fungal inocula on the decomposition of lignin and structural polysaccharides in Pinus sylvestris litter. Biol Fert Soils 33:246–51.CrossRef
  Denslow JS, Ellison AM, Sanford RE. 1998. Treefall gap size effects on above-and below-ground processes in a tropical wet forest. J Ecol 86:597–609.CrossRef
  Fioretto A, Di Nardo C, Papa S, Fuggi A. 2005. Lignin and cellulose degradation and nitrogen dynamics during decomposition of three leaf litter species in a Mediterranean ecosystem. Soil Biol Biochem 37:1083–91.CrossRef
  Freppaz M, Celi L, Marchelli M, Zanini E. 2008. Snow removal and its influence on temperature and N dynamics in alpine soils (Vallee d’Aoste, northwest Italy). J Plant Nutr Soil Sci 171:672–80.CrossRef
  Groffman PM, Driscoll CT, Fahey TJ, Hardy JP, Fitzhugh RD, Tierney GL. 2001. Effects of mild winter freezing on soil nitrogen and carbon dynamics in a northern hardwood forest. Biogeochemistry 56:191–213.CrossRef
  Guo LB, Halliday MJ, Gifford RM. 2006. Fine root decomposition under grass and pine seedlings in controlled environmental conditions. Appl Soil Ecol 33:22–9.CrossRef
  Haei M, Rousk J, Ilstedt U, Öquist M, Bååth E, Laudon H. 2011. Effects of soil frost on growth, composition and respiration of the soil microbial decomposer community. Soil Biol Biochem 43:2069–77.CrossRef
  Henry HA. 2007. Soil freeze–thaw cycle experiments: trends, methodological weaknesses and suggested improvements. Soil Biol Biochem 39:977–86.CrossRef
  Hicks Pries CE, Schuur E, Vogel JG, Natali SM. 2013. Moisture drives surface decomposition in thawing tundra. J Geophys Res: Biogeosci 118:1133–43.
  Klotzbücher T, Kaiser K, Guggenberger G, Gatzek C, Kalbitz K. 2011. A new conceptual model for the fate of lignin in decomposing plant litter. Ecology 92:1052–62.CrossRef PubMed
  Konestabo HS, Michelsen A, Holmstrup M. 2007. Responses of springtail and mite populations to prolonged periods of soil freeze-thaw cycles in a sub-arctic ecosystem. Appl Soil Ecol 36:136–46.CrossRef
  Lu R. 1999. Soil and agro-chemical analytical methods. Beijing: China Agricultural Science and Technology Press. (in Chinese with English abstract)
  McClaugherty C, Berg B. 1987. Cellulose, lignin and nitrogen concentrations as rate regulating factors in late stages of forest litter decomposition. Pedobiologia 30:101–12.
  Meentemeyer V. 1978. Macroclimate and lignin control of litter decomposition rates. Ecology 59:465–72.CrossRef
  Melillo JM, Aber JD, Muratore JF. 1982. Nitrogen and lignin control of hardwood leaf litter decomposition dynamics. Ecology 63:621–6.CrossRef
  Prescott CE, Blevins LL, Staley CL. 2000. Effects of clear-cutting on decomposition rates of litter and forest floor in forests of British Columbia. Can J Forest Res 30:1751–7.CrossRef
  Preston CM, Nault JR, Trofymow J. 2009a. Chemical changes during 6 years of decomposition of 11 litters in some Canadian forest sites. Part 2. 13C abundance, solid-state 13C NMR spectroscopy and the meaning of “lignin”. Ecosystems 12:1078–102.CrossRef
  Preston CM, Nault JR, Trofymow J, Smyth C. 2009b. Chemical changes during 6 years of decomposition of 11 litters in some Canadian forest sites. Part 1. Elemental composition, tannins, phenolics, and proximate fractions. Ecosystems 12:1053–77.CrossRef
  Ritter E. 2005. Litter decomposition and nitrogen mineralization in newly formed gaps in a Danish beech (Fagus sylvatica) forest. Soil Biol Biochem 37:1237–47.CrossRef
  Rutigliano FA, De Santo AV, Berg B, Alfani A, Fioretto A. 1996. Lignin decomposition in decaying leaves of Fagus sylvatica L. and needles of Abies alba Mill. Soil Biol Biochem 28:101–6.CrossRef
  Saccone P, Morin S, Baptist F, Bonneville J-M, Colace M-P, Domine F, Faure M, Geremia R, Lochet J, Poly F. 2013. The effects of snowpack properties and plant strategies on litter decomposition during winter in subalpine meadows. Plant Soil 363:215–29.CrossRef
  Sariyildiz T. 2008. Effects of gap-size classes on long-term litter decomposition rates of beech, oak and chestnut species at high elevations in Northeast Turkey. Ecosystems 11:841–53.CrossRef
  Schimel JP, Clein JS. 1996. Microbial response to freeze-thaw cycles in tundra and taiga soils. Soil Biol Biochem 28:1061–6.CrossRef
  Sharratt B, Benoit G, Daniel J, Staricka J. 1999. Snow cover, frost depth, and soil water across a prairie pothole landscape. Soil Sci 164:483–92.CrossRef
  Song XZ, Jiang H, Zhang HL, Peng CH, Yu SQ. 2011. Elevated UV-B radiation did not affect decomposition rates of needles of two coniferous species in subtropical China. Eur J Soil Biol 47:343–8.CrossRef
  Swift MJ, Heal OW, Anderson JM. 1979. Decomposition in terrestrial ecosystems. Berkeley (CA): University of California Press.
  Talbot JM, Treseder KK. 2012. Interactions among lignin, cellulose, and nitrogen drive litter chemistry-decay relationships. Ecology 93:345–54.CrossRef PubMed
  Tan B, Wu FZ, Yang WQ, He XH. 2014. Snow removal alters soil microbial biomass and enzyme activity in a Tibetan alpine forest. Appl Soil Ecol 76:34–41.CrossRef
  Taylor BR, Parkinson D. 1988. Does repeated freezing and thawing accelerate decay of leaf litter? Soil Biol Biochem 20:657–65.CrossRef
  Taylor BR, Parkinson D, Parsons WF. 1989. Nitrogen and lignin content as predictors of litter decay rates: a microcosm test. Ecology 70:97–104.CrossRef
  Vance ED, Brookes PC, Jenkinson DS. 1987. An extraction method for measuring soil microbial biomass C. Soil Biol Biochem 19:703–7.CrossRef
  Vanderbilt KL, White CS, Hopkins O, Craig JA. 2008. Aboveground decomposition in arid environments: results of a long-term study in central New Mexico. J Arid Environ 72:696–709.CrossRef
  Wu FZ, Yang WQ, Zhang J, Deng RJ. 2010. Litter decomposition in two subalpine forests during the freeze–thaw season. Acta Oecol 36:135–40.CrossRef
  Wu QQ, Wu FZ, Yang WQ, Zhao YY, He W, Tan B. 2014. Foliar litter nitrogen dynamics as affected by forest gap in the Alpine forest of eastern Tibet plateau. PloS ONE 9:e97112.PubMedCentral CrossRef PubMed
  Yang WQ, Wang KY, Kellomaki S, Gong HD. 2005. Litter dynamics of three subalpine forests in Western Sichuan. Pedosphere 15:653–9.
  Yang YP, Li CB. 1992. Sichuan forest. Beijing: China Forestry Press(in Chinese with English abstract).
  Zhang QS, Liang YW. 1995. Effects of gap size on nutrient release from plant litter decomposition in a natural forest ecosystem. Can J Forest Res 25:1627–38.CrossRef
  Zhang QS, Zak JC. 1995. Effects of gap size on litter decomposition and microbial activity in a subtropical forest. Ecology 76:2196–204.CrossRef
  Zhu JX, He XH, Wu FZ, Yang WQ, Tan B. 2012. Decomposition of Abies faxoniana litter varies with freeze–thaw stages and altitudes in subalpine/alpine forests of southwest China. Scand J Forest Res 27:586–96.CrossRef
  Zhu JX, Yang WQ, He XH. 2013. Temporal dynamics of abiotic and biotic factors on leaf litter of three plant species in relation to decomposition rate along a subalpine elevation gradient. PloS ONE 8:e62073.PubMedCentral CrossRef PubMed
  
• 作者单位：Wei He (1)
  Fuzhong Wu (1)
  Wanqin Yang (1)
  Bo Tan (1)
  Yeyi Zhao (1)
  Qiqian Wu (1)
  Min He (1)
  
  1. Key Laboratory of Ecological Forestry Engineering, Long-term Research Station of Alpine Forest Ecosystem, Institute of Ecology and Forestry, Sichuan Agricultural University, Chengdu, 611130, China
  
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Ecology
  Plant Sciences
  Zoology
  Environmental Management
  Geoecology and Natural Processes
  Nature Conservation
  
• 出版者：Springer New York
• ISSN：1435-0629

文摘

To understand the effects of forest gaps on lignin degradation during shrub foliar litter decomposition, a field litterbag experiment was conducted in an alpine fir (Abies faxoniana) forest of the eastern Tibet Plateau. Dwarf bamboo (Fargesia nitida) and willow (Salix paraplesia) foliar litterbags were placed on the forest floor from the gap center to the closed canopy. The litterbags were sampled during snow formation, snow coverage, snow melting and the growing season from October 2010 to October 2012. The lignin concentrations and loss in the litter were measured. Over 2 years, lignin loss was lower in the bamboo litter (34.64–43.89%) than in the willow litter (38.91–55.10%). In the bamboo litter, lignin loss mainly occurred during the first decomposition year, whereas it occurred during the second decomposition year in the willow litter. Both bamboo and willow litter lignin loss decreased from the gap center to the closed canopy during the first year and over the entire 2-year decomposition period. Compared with the closed canopy, the gap center showed higher lignin loss for both bamboo and willow litter during the two winters, but lower lignin loss during the early growing period. Additionally, the dynamics of microbial biomass carbon during litter decomposition followed the same trend as litter lignin loss during the two winters and growing period. These results indicated that alpine forest gaps had significant effects on shrub litter lignin loss and that reduced snow cover during winter warming would inhibit shrub lignin degradation in this alpine forest. Key words alpine forest freeze-thaw cycle gap lignin degradation microbial biomass carbon shrub foliar litter snow cover