Abstract
Aims
To determine the effect of grassland degradation on the soil carbon pool in alpine grassland.
Methods
In this study, we calculated the carbon pool in the above-and below-ground biomass, the soil microbial biomass carbon pool, the total organic carbon pool and the soil total carbon.
Results
Grassland degradation has resulted in decreases in biomass and carbon content and has changed the ratio of roots to shoots. However, there was less influence of degradation on dead root biomass. There was most likely a lag effect of changes in dead root biomass following grassland degradation. In the alpine grassland ecosystem, the carbon pool in soil accounts for more than 92 % of the total carbon both in vegetation and soil. The carbon in alpine grassland is stored primarily in the form of total organic carbon below-ground. As organic carbon decreases, the ratio of the microbial biomass carbon pool to the total organic carbon pool increases and then declines with increasing degradation level. Along the grassland degradation gradient, the total vegetation biomass (above-and below-ground) and the soil carbon pool (microbial biomass C, total organic C and total C) all decreased.
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References
Ajtay GL (1979) Terrestrial primary production and phytomass: The global carbon cycle. John wiley sons, Chichester, pp 129–182
Bach EM, Baer SG, Six J (2012) Plant and soil responses to high and low diversity grassland restoration practices. Environ Manage 49:412–424
Bessler H, Temperton VM, Roscher C, Buchmann N, Schmid B, Schulze E-D, Weisser WW, Engels C (2009) Aboveground overyielding in grassland mixtures is associated with reduced biomass partitioning to belowground organs. Ecology 90:1520–1530
Billings SA (2006) Soil organic matter dynamics and land use change at a grassland/forest ecotone. Soil Biol Biochem 38:2934–2943
Birouste M, Kazakou E, Blanchard A, Roumet C (2012) Plant traits and decomposition: are the relationships for roots comparable to those for leaves? Ann Bot 109:463–472
Blagodatskaya E, Yuyukina T, Blagodatsky S, Kuzyakov Y (2011) Turnover of soil organic matter and of microbial biomass under C3-C4 vegetation change: Consideration of 13C fractionation and preferential substrate utilization. Soil Biol Biochem 43:159–166
Blue JD, Souza L, Classen AT, Schweitzer JA, Sanders NJ (2011) The variable effects of soil nitrogen availability and insect herbivory on aboveground and belowground plant biomass in an old-field ecosystem. Oecologia 167:771–780
Cao G, Tang Y, Mo W, Wang Y, Li Y, Zhao X (2004) Grazing intensity alters soil respiration in an alpine meadow on the Tibetan plateau. Soil Biol Biochem 36:237–243
Chen J, Yamamura Y, Hori Y, Shiyomi M, Yasuda T, Hua-kun Z, Ying-nian L, Yan-hong T (2008) Small-scale species richness and its spatial variation in an alpine meadow on the Qinghai-Tibet Plateau. Ecol Res 23:657–663
Cheng W (2009) Rhizosphere priming effect: Its functional relationships with microbial turnover, evapotranspiration, and C-N budgets. Soil Biol Biochem 41:1795–1801
Eisenhauer N, Reich PB (2012) Above- and below-ground plant inputs both fuel soil food webs. Soil Biol Biochem 45:156–160
Fan J, Zhong H, Harris W, Yu G, Wang S, Hu Z, Yue Y (2008) Carbon storage in the grasslands of China based on field measurements of above- and below-ground biomass. Clim Change 86:375–396
Fan J-W, Zhong HP, Chen ZQ, Liu RG, Xu XL, Liu JY, Shao QQ, Harris W, Wang JB (2010) Assessment of effects of climate change and grazing activity on grassland yield in the Three Rivers Headwaters Region of Qinghai-Tibet Plateau, China [electronic resource]. Environ Monit Assess 170:571–584
Feng R, Long R, Shang Z, Ma Y, Dong S, Wang Y (2010) Establishment of Elymus natans improves soil quality of a heavily degraded alpine meadow in Qinghai-Tibetan Plateau, China. Plant Soil 327:403–411
Geng YB, Dong YS, Qi YC (2004) Review about the Carbon Cycle Researches in Grassland Ecosystem. Prog Geogr 23:74–81
Głąb T, Kacorzyk P (2011) Root distribution and herbage production under different management regimes of mountain grassland. Soil Tillage Res 113:99–104
Guo YJ, Han L, Li GD, Han JG, Wang GL, Li ZY, Wilson B (2012) The effects of defoliation on plant community, root biomass and nutrient allocation and soil chemical properties on semi-arid steppes in northern China. J Arid Environ 78:128–134
Hafner S, Unteregelsbacher S, Seeber E, Lena B, Xu X, Li X, Guggenberger G, Miehe G, Kuzyakov Y (2012) Effect of grazing on carbon stocks and assimilate partitioning in a Tibetan montane pasture revealed by 13CO2 pulse labeling. Global Change Biol 18:528–538
Harris RB (2010) Rangeland degradation on the Qinghai-Tibetan plateau: A review of the evidence of its magnitude and causes. J Arid Environ 74:1–12
Huang Z, Davis MR, Condron LM, Clinton PW (2011) Soil carbon pools, plant biomarkers and mean carbon residence time after afforestation of grassland with three tree species. Soil Biol Biochem 43:1341–1349
IPCC (2000) Land use, Land-use change, and forestry. Cambridge University Press, UK
Leifeld J, Bassin S, Fuhrer J (2005) Carbon stocks in Swiss agricultural soils predicted by land-use, soil characteristics, and altitude. Agric Ecosyst Environ 105:255–266
Li KH, Wang WL, Hu YK, Gao GG, Gong YM, Yin W (2008) Relationships between belowgrund biomass of alpine grassland and environmental factors along an altitude gradient. Chin J Appl Ecol 19:2364–2368
Lu H, Wu N, Gu Z, Guo Z, Wang L, Wu H, Wang G, Zhou L, Han J, Liu T (2004) Distribution of carbon isotope composition of modern soils on the Qinghai-Tibetan Plateau. Biogeochemistry 70:275–299
Luo C, Chang X, Zhang Z, Duan J, Zhao X, Su A, Wang Y, Xu G, Wang S, Hu Y, Lin X (2009) Effects of grazing and experimental warming on DOC concentrations in the soil solution on the Qinghai-Tibet plateau. Soil Biol Biochem 41:2493–2500
Ma YS, Lang BN, Li QY, Shi JJ, Dong QM (2002) Study on rehabilitating and rebuilding technologies for degenerated alpine meadow in the Yangtze and Yellow River source region. Pratacultural Science 19:1–15
Miller DJ (2005) The Tibetan steppe. In: Suttie JM, Reynolds SG, Batello C (eds) Grasslands of the world, Plant production and protection series. Food and Agriculture Organization of the United Nations, Rome, pp 305–342
Ni J (2002) Carbon storage in grasslands of China. J Arid Environ 50:205–218
Peichl M, Leava NA, Kiely G (2012) Above-and belowground ecosystem biomass, carbon and nitrogen allocation in recently afforested grassland and adjacent intensively managed grassland. Plant Soil 350:281–296
Personeni E, Loiseau P (2004) How does the nature of living and dead roots affect the residence time of carbon in the root litter continuum? Plant Soil 267:129–141
Pollierer MM, Langel R, Koerner C, Maraun M, Scheu S (2007) The underestimated importance of belowground carbon input for forest soil animal food webs. Ecol Lett 10:729–736
Rosenqvist A, Milne A, Lucas R, Imhoff M, Dobson C (2003) A review of remote sensing technology in support of the Kyoto Protocol. Environmental Science and Policy 6:441–455
Shang ZH, Long RJ (2007) Formation causes and recovery of the “Black Soil Type” degraded alpine grassland in Qinghai-Tibetan Plateau. Front. Agric. China 1:197–202
Sims PL, Singh JS (1978) The Structure and Function of Ten Western North American Grasslands: II. Intra-Seasonal Dynamics in Primary Producer Compartments. J Ecol 66: 547–572
Sparling GP (1992) Ratio of microbial biomass carbon to soil organic-carbon as a sentitive indicator of changes in soil organic-matter. Aust J Soil Res 30:195–207
van der Krift TAJ, Kuikman PJ, Berendse F (2002) The effect of living plants on root decomposition of four grass species. Oikos 96:36–45
Vance ED, Brookes PC, Jenkinson DS (1987) An extraction method for measuring soil microbial biomass-C. Soil Biol Biochem 19:703–707
Wang CT, Long RJ, Wang QL, Jing ZC, Shi JJ (2009) Changes in plant diverstiy, biomass and soil C, in alpine meadows at different degradation stages in the Headwater Region of Three Rivers, China. Land Degrad Develop 20:187–198
Wang GX, Chen GD (2001) Characteristics of grassland and ecological changes of vegetations in the Source Regions of Yangtze and Yellow Rivers. Journal of Desert Research 21:101–107
Wang GX, Qian J, Cheng GD, Lai YM (2002) Soil organic carbon pool of grassland soils on the Qinghai-Tibetan Plateau and its global implication. Sci Total Environ 291:207–217
Wang WY, Li Y, Wang G, Shi HL, Wang QJ, Wang CY (2005) The effect of land management on carbon and nitrogen status in plants and soils of alpine meadows on the Tibetan plateau. Land Degrad Develop 16:405–415
Witter E, Kanal A (1998) Characteristics of the soil microbial biomass in soils from a long-term field experiment with different levels of C input. Appl Soil Ecol 10:37–49
Wu J, Joergensen RG, Pommerening B, Chaussod R, Brookes PC (1990) Measurement of soil microbial biomass C by fumigation-extraction — an automated procedure. Soil Biol Biochem 25:1435–1441
Yan Y, Shuzhen L, Wei Z (2006) Dynamic of grassland biomass in different degenerative stages. Wuhan Univ J Nat Sci 11:958–962
Yang H, Shaojie MU, Chengming SUN, Jianlong LI, Weimin JU (2011) Summary of Research on Estimation of Organic Carbon Storage in Grassland Ecosystem. Chinese Journal of Grassland 33:107–114
Yang YH, Rao S, Hu HF, Chen AP, Ji CJ, Zhu B (2004) Plant species richness of alpine grasslands in relation to environmental factors and biomass on the Tibetan Plateau. Biodivers Sci 12:200–205
Acknowledgement
This study was financially supported by the grants from the Ministry of Science and Technology, China (2012BAC01B02) and the Ministry of Environmental Protection, China (201209033). The authors wish to express their great thanks to the reviewers and the editors for their efforts and time.
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Wen, L., Dong, S., Li, Y. et al. The impact of land degradation on the C pools in alpine grasslands of the Qinghai-Tibet Plateau. Plant Soil 368, 329–340 (2013). https://doi.org/10.1007/s11104-012-1500-4
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DOI: https://doi.org/10.1007/s11104-012-1500-4