Abstract
Plant litter can influence many fundamental ecosystem functions during decomposition. However, the mechanism of litter diversity effects on belowground ecological processes remains unclear, especially with regard to soil C and the N cycle in alpine ecosystems. In this study, we incubated the litter of four alpine steppe species (SP: Stipa purpurea, CM: Carex moorcroftii, LP: Leontopodium pusillum, AN: Artemisia nanschanica) alone or in mixture with soil. The litter-mixing experiment was conducted to determine the effects of litter diversity on soil C and N dynamics in an alpine steppe in Northern Tibet. Litter treatments significantly enhanced CO2 and N2O emissions and decreased CH4 immobilization in general; soil organic C, total N, water soluble organic C, water soluble organic N, microbial biomass C, microbial biomass N, and urease activity were also enhanced, while soil total inorganic N was decreased by litter treatments. Plant species richness poorly affected soil C and N dynamics, while litter chemical structure, such as C, N, lingin:N, phenol:N, cellulose, and cellulose:N, significantly affected soil C and N dynamics. Non-additive effects of litter mixture were predominant on soil C and N dynamics, while antagonistic effects were more frequent than synergistic effects. These results indicated that litter addition can significantly impact soil C and N dynamics through non-additive effects of litter mixture, and litter chemical structure is more important than species richness in affecting soil C and N dynamics of the alpine steppe in Northern Tibet.
Similar content being viewed by others
References
Begum N, Guppy C, Herridge D, Schwenke G (2014) Influence of source and quality of plant residues on emissions of N2O and CO2 from a fertile, acidic Black Vertisol. Biol Fertil Soils 50:499–506
Berg B, Laskowski R (2005) Litter decomposition: a guide to carbon and nutrient turnover. Academic, New York
Bremner JM, Mulvaney C (1982) Nitrogen-total. In: Page AL (ed) Methods of soil analysis. Part 2. Chemical and microbiological properties. American Society of Agronomy, Soil Science Society of America, Madison, pp 595–624
Cai Y, Wang X, Ding W, Tian L, Zhao H, Lu X (2013) Potential short-term effects of yak and Tibetan sheep dung on greenhouse gas emissions in two alpine grassland soils under laboratory conditions. Biol Fertil Soils 49:1215–1226
Chapman SK, Newman GS (2010) Biodiversity at the plant–soil interface: microbial abundance and community structure respond to litter mixing. Oecologia 162:763–769
Chapman SK, Newman GS, Hart SC, Schweitzer JA, Koch GW (2013) Leaf litter mixtures alter microbial community development: mechanisms for non-additive effects in litter decomposition. Plos One 8:e62671
Cornwell WK, Cornelissen JHC, Amatangelo K, Dorrepaal E, Eviner VT, Godoy O, Hobbie SE, Hoorens B, Kurokawa H, Perez-Harguindeguy N, Quested HM, Santiago LS, Wardle DA, Wright IJ, Aerts R, Allison SD, van Bodegom P, Brovkin V, Chatain A, Callaghan TV, Diaz S, Garnier E, Gurvich DE, Kazakou E, Klein JA, Read J, Reich PB, Soudzilovskaia NA, Victoria Vaieretti M, Westoby M (2008) Plant species traits are the predominant control on litter decomposition rates within biomes worldwide. Ecol Lett 11:1065–1071
Davidson EA, Eckert RW, Hart SC, Firestone MK (1989) Direct extraction of microbial biomass nitrogen from forest and grassland soils of California. Soil Biol Biochem 21:773–778
Dijkstra FA, Morgan JA, Follett RF, LeCain DR (2013) Climate change reduces the net sink of CH4 and N2O in a semiarid grassland. Global Change Biol 19:1816–1826
Duan J, Wang S, Zhang Z, Xu G, Luo C, Chang X, Zhu X, Cui S, Zhao X, Wang W (2013) Non-additive effect of species diversity and temperature sensitivity of mixed litter decomposition in the alpine meadow on Tibetan Plateau. Soil Biol Biochem 57:841–847
Epps KY (2009) Linking species richness, litter chemical diversity and soil carbon dynamics in the Atlantic Forest, Bahia, Brazil. Dissertation, University of Florida
Gao Q, Li Y, Wan Y, Qin X, Jiangcun W, Liu Y (2009) Dynamics of alpine grassland NPP and its response to climate change in Northern Tibet. Clim Change 97:515–528
Gartner TB, Cardon ZG (2004) Decomposition dynamics in mixed-species leaf litter. Oikos 104:230–246
Hättenschwiler S, Vitousek PM (2000) The role of polyphenols in terrestrial ecosystem nutrient cycling. Trends Ecol Evol 15:238–243
Hättenschwiler S, Tiunov AV, Scheu S (2005) Biodiversity and litter decomposition in terrestrial ecosystems. Annu Rev Ecol Evol Syst 36:191–218
Hector A, Schmid B, Beierkuhnlein C, Caldeira M, Diemer M, Dimitrakopoulos P, Finn J, Freitas H, Giller P, Good J (1999) Plant diversity and productivity experiments in European grasslands. Science 286:1123–1127
Heemsbergen D, Berg M, Loreau M, Van Hal J, Faber J, Verhoef H (2004) Biodiversity effects on soil processes explained by interspecific functional dissimilarity. Science 306:1019–1020
Hoorens B, Aerts R, Stroetenga M (2003) Does initial litter chemistry explain litter mixture effects on decomposition? Oecologia 137:578–586
Huang Y, Zou J, Zheng X, Wang Y, Xu X (2004) Nitrous oxide emissions as influenced by amendment of plant residues with different C: N ratios. Soil Biol Biochem 36:973–981
Imer D, Merbold L, Eugster W, Buchmann N (2013) Temporal and spatial variations of soil CO2, CH4 and N2O fluxes at three differently managed grasslands. Biogeosciences 10:5931–5945
Jiang J, Li Y, Wang M, Zhou C, Cao G, Shi P, Song M (2013) Litter species traits, but not richness, contribute to carbon and nitrogen dynamics in an alpine meadow on the Tibetan Plateau. Plant Soil 373:931–941
Kalembasa SJ, Jenkinson DS (1973) A comparative study of titrimetric and gravimetric methods for the determination of organic carbon in soil. J Sci Food Agric 24:1085–1090
Kanerva S, Kitunen V, Loponen J, Smolander A (2008) Phenolic compounds and terpenes in soil organic horizon layers under silver birch, Norway spruce and Scots pine. Biol Fertil Soils 44:547–556
Kominoski J, Pringle C, Ball B, Bradford M, Coleman D, Hall D, Hunter M (2007) Nonadditive effects of leaf litter species diversity on breakdown dynamics in a detritus-based stream. Ecology 88:1167–1176
Kuiters A (1990) Role of phenolic substances from decomposing forest litter in plant-soil interactions. Acta Bot Neerl 39:329–348
Loreau M, Naeem S, Inchausti P (2002) Biodiversity and ecosystem functioning vol 294. Oxford University Press, Oxford
Lorena CA, Noé VD, Victoria CM, Beatriz BM, Leticia SC, Julia MM (2005) Soil nitrogen in relation to quality and decomposability of plant litter in the Patagonian Monte, Argentina. Plant Ecol 181:139–151
Lu X, Fan J, Yan Y, Wang X (2013) Responses of soil CO2 fluxes to short-term experimental warming in alpine steppe ecosystem, Northern Tibet. PLoS One 8:e59054
Ma L, Guo C, Xin X, Yuan S, Wang R (2013) Effects of belowground litter addition, increased precipitation and clipping on soil carbon and nitrogen mineralization in a temperate steppe. Biogeosciences 10:7361–7372
Meier CL, Bowman WD (2008) Links between plant litter chemistry, species diversity, and below-ground ecosystem function. Proc Natl Acad Sci U S A 105:19780–19785
Meier CL, Bowman WD (2010) Chemical composition and diversity influence non-additive effects of litter mixtures on soil carbon and nitrogen cycling: implications for plant species loss. Soil Biol Biochem 42:1447–1454
Mosier A, Parton W, Valentine D, Ojima D, Schimel D, Heinemeyer O (1997) CH4 and N2O fluxes in the Colorado shortgrass steppe: 2. Long-term impact of land use change. Glob Biogeochem Cy 11:29–42
Mungai NW, Motavalli PP (2006) Litter quality effects on soil carbon and nitrogen dynamics in temperate alley cropping systems. Appl Soil Ecol 31:32–42
Rahman MM, Tsukamoto J, Tokumoto Y, Shuvo MAR (2013) The role of quantitative traits of leaf litter on decomposition and nutrient cycling of the forest ecosystems. J For Sci 29:38–48
Rinnan R, Michelsen A, Jonasson S (2008) Effects of litter addition and warming on soil carbon, nutrient pools and microbial communities in a subarctic heath ecosystem. Appl Soil Ecol 39:271–281
Shi A, Penfold C, Marschner P (2013) Decomposition of roots and shoots of perennial grasses and annual barley—separately or in two residue mixes. Biol Fertil Soils 49:673–680
Smolander A, Kanerva S, Adamczyk B, Kitunen V (2012) Nitrogen transformations in boreal forest soils—does composition of plant secondary compounds give any explanations? Plant Soil 350:1–26
Tabatabai MA (1982) Soil enzymes. In: Page AL (ed) Methods of soil analysis. Part 2. Chemical and microbiological properties. American Society of Agronomy, Soil Science Society of America, Madison, pp 903–947
Talbot JM, Treseder KK (2012) Interactions among lignin, cellulose, and nitrogen drive litter chemistry-decay relationships. Ecology 93:345–354
Thoss V, Shevtsova A, Nilsson M-C (2004) Environmental manipulation treatment effects on the reactivity of water-soluble phenolics in a subalpine tundra ecosystem. Plant Soil 259:355–365
Tilman D, Lehman CL, Thomson KT (1997) Plant diversity and ecosystem productivity: theoretical considerations. Proc Natl Acad Sci U S A 94:1857–1861
Updegraff DM (1969) Semimicro determination of cellulose inbiological materials. Anal Biochem 32:420–424
Valachovic Y, Caldwell B, Cromack K Jr, Griffiths RP (2004) Leaf litter chemistry controls on decomposition of Pacific Northwest trees and woody shrubs. Can J Forest Res 34:2131–2147
Van Soest PJ (1963) Use of detergents in analysis of fibrous feeds: a rapid method for the determination of fiber and lignin. J Assoc Off Agric Chem 46:829–835
Vargas DN, Bertiller MB, Ares JO, Carrera AL, Sain CL (2006) Soil C and N dynamics induced by leaf-litter decomposition of shrubs and perennial grasses of the Patagonian Monte. Soil Biol Biochem 38:2401–2410
Wardle DA, Bonner KI, Nicholson KS (1997) Biodiversity and plant litter: experimental evidence which does not support the view that enhanced species richness improves ecosystem function. Oikos 79:247–258
Waterman P, Mole S (1994) Analysis of phenolic plant metabolites. Blackwell, Oxford
Acknowledgments
This study was supported by the National Natural Science Foundation of China (41371267 and 41201053), and the 135 Strategic Program of the Institute of Mountain Hazards and Environment (SDS-135-1203-03).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Chen, Y., Sun, J., Xie, F. et al. Litter chemical structure is more important than species richness in affecting soil carbon and nitrogen dynamics including gas emissions from an alpine soil. Biol Fertil Soils 51, 791–800 (2015). https://doi.org/10.1007/s00374-015-1025-0
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00374-015-1025-0