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Journal of Arid Land >

2015 , Vol. 7 >Issue 2: 189 - 204

DOI: https://doi.org/10.1007/s40333-014-0010-z

Research Articles

Effects of warming and clipping on plant and soil properties of an alpine meadow in the Qinghai-Tibetan Plateau, China

  • ManHouXU ,
  • FeiPENG ,
  • QuanGangYOU ,
  • JianGUO ,
  • XiaFeiTIAN ,
  • MinLIU ,
  • XianXUE
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  • 1 Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;
    2 Taiyuan Normal University, Taiyuan 030012, China

Received date: 2014-01-21

  Revised date: 2014-05-05

  Online published: 2014-11-19

Supported by

The Hundred Talent Program of Chinese Academy of Sciences and the National Natural Science Foundation of China (41301211, 41201195).

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Abstract

Climate warming and livestock grazing are known to have great influences on alpine ecosystems like those of the Qinghai-Tibetan Plateau (QTP) in China. However, it is lacking of studies on the effects of warming and grazing on plant and soil properties in these alpine ecosystems. In this study, we reported the related research from manipulative experiment in 2010–2012 in the QTP. The aim of this study was to investigate the individual and com-bined effects of warming and clipping on plant and soil properties in the alpine meadow ecosystem. Infrared radia-tors were used to simulate climate warming starting in July 2010, while clipping was performed once in October 2011 to simulate the local livestock grazing. The experiment was designed as a randomized block consisting of five replications and four treatments: control (CK), warming (W), clipping (C) and warming+clipping combination (WC). The plant and soil properties were investigated in the growing season of the alpine meadow in 2012. The results showed that W and WC treatments significantly decreased relative humidity at 20-cm height above ground as well as significantly increases air temperature at the same height, surface temperature, and soil temperature at the depth of 0–30 cm. However, the C treatment did not significantly decrease soil moisture and soil temperature at the depth of 0–60 cm. Relative to CK, vegetation height and species number increased significantly in W and WC treatment, respectively, while vegetation aboveground biomass decreased significantly in C treatment in the early growing season. However, vegetation cover, species diversity, belowground biomass and soil properties at the depth of 0–30 cm did not differ significantly in W, C and WC treatments. Soil moisture increased at the depth of 40–100 cm in W and WC treatments, while belowground biomass, soil activated carbon, organic carbon and total nitrogen increased in the 30–50 cm soil layer in W, C and WC treatments. Although the initial responses of plant and soil properties to experimental warming and clipping were slow and weak, the drought induced by the down-ward shift of soil moisture in the upper soil layers may induce plant belowground biomass to transfer to the deeper soil layers. This movement would modify the distributions of soil activated carbon, organic carbon and total nitrogen. However, long-term data collection is needed to further explain this interesting phenomenon.

Key words：

simulated warming; overgrazing; soil property; plant property; alpine meadow ecosystem; Qinghai-Tibetan Plateau

Cite this article

ManHouXU , FeiPENG , QuanGangYOU , JianGUO , XiaFeiTIAN , MinLIU , XianXUE . Effects of warming and clipping on plant and soil properties of an alpine meadow in the Qinghai-Tibetan Plateau, China[J]. Journal of Arid Land, 2015 , 7(2) : 189 -204 . DOI: 10.1007/s40333-014-0010-z

References

Agrawal A, Gopal K. 2013. Application of diversity index in measurement of species diversity. In: Biomonitoring of Water and Waste Water. India: Springer, 41–48.

Arft A M, Walker M D, Gurevitch J, et al. 1999. Response patterns of tundra plant species to experimental warming: a meta-analysis of the International Tundra Experiment. Ecological Monographs, 69(4): 491–512.

Belsky A J. 1986. Does herbivory benefit plants? A review of the evidence. The American Naturalist, 127(6): 870–892.

Belsky A J. 1993. Overcompensation by plants: herbivore optimization or red herring. Evolutionary Ecology, 7(1): 109–121.

Biasi C, Meyer H, Rusalimova O, et al. 2008. Initial effects of experimental warming on carbon exchange rates, plant growth and microbial dynamics of a lichen-rich dwarf shrub tundra in Siberia. Plant and Soil, 307(1–2): 191–205.

Blair G J, Lefroy R D B, Lisle L. 1995. Soil carbon fractions based on their degree of oxidation, and the development of a carbon management index for agricultural systems. Australian Journal of Agricultural Research, 46(7): 1459–1466.

Brown J H, Valone T J, Curtin C G. 1997. Reorganization of an arid ecosystem in response to recent climate change. Proceedings of the National Academy of Sciences of the United States of America, 94(18): 9729–9733.

Cao G M, Tang Y H, Mo W H, et al. 2004. Grazing intensity alters soil respiration in an alpine meadow on the Tibetan plateau. Soil Biology and Biochemistry, 36(2): 237–243.

Chapin F S, Shaver G R, Giblin A E, et al. 1995. Responses of arctic tundra to experimental and observed changes in climate. Ecology, 76(3): 694–711.

Chapin F S, Randerson J T, McGuire A D, et al. 2008. Changing feedbacks in the climate-biosphere system. Frontiers in Ecology and the Environment, 6(6): 313–320.

Danby R, Hik D S. 2007. Responses of white spruce (Picea glauca) to experimental warming at a subarctic alpine treeline. Global Change Biology, 13(2): 437–451.

de Boeck H J, Lemmens C M H M, Gielen B, et al. 2007. Combined effects of climate warming and plant diversity loss on above- and below-ground grassland productivity. Environmental and Experimental Botany, 60(1): 95–104.

Derner J D, Boutton T W, Briske D D. 2006. Grazing and ecosystem carbon storage in the North American Great Plains. Plant and Soil, 280(1–2): 77–90.

Dunne J A, Saleska S R, Fischer M L, et al. 2004. Integrating experimental and gradient methods in ecological climate change research. Ecology, 85(4): 904–916.

Emmett B A, Beier C, Estiarte M, et al. 2004. The response of soil processes to climate change, results from manipulation studies of shrublands across an environmental gradient. Ecosystems, 7(6): 625–637.

Grabherr G, Gottfried M, Pauli H. 1994. Climate effects on mountain plants. Nature, 369(6480): 448.

Gu M H, Wang T, Du G Z. 2011. Primary productivity and species abundance of cultivated grassland under different clipping and seeding combinations. Acta Botanica Boreali-Occidentalia Sinica, 31(8): 1672–1676. (in Chinese)

Han W W, Luo Y J, Du G Z. 2007. Effects of clipping on diversity and above-ground biomass associated with soil fertility on an alpine meadow in the eastern region of the Qinghai-Tibetan Plateau. New Zealand Journal of Agricultural Research, 50(3): 361–368.

Harte J, Torn M S, Chang F R, et al. 1995. Global warming and soil microclimate: results from a meadow-warming experiment. Ecological Applications, 5(1): 132–150.

Kimball B A. 2005. Theory and performance of an infrared heater for ecosystem warming. Global Change Biology, 11(11): 2041–2056.

Klein J A, Harte J, Zhao X Q. 2004. Experimental warming causes large and rapid species loss, dampened by simulated grazing, on the Tibetan Plateau. Ecology Letters, 7(12): 1170–1179.

Klein J A, Harte J, Zhao X Q. 2005. Dynamic and complex microclimate responses to warming and grazing manipulations. Global Change Biology, 11(9): 1440–1451.

Knorr W, Prentice I C, House J I, et al. 2005. Long-term sensitivity of soil carbon turnover to warming. Nature, 433(7023): 298–301.

Kudo G, Suzuki S. 2003. Warming effects on growth, production, and vegetation structure of alpine shrubs: a five-year experiment in northern Japan. Oecologia, 135(2): 280–287.

Li K Y, Zhao Y Y, Yuan X L, et al. 2012. Comparison of factors affecting soil nitrate nitrogen and ammonium nitrogen extraction. Communications in Soil Science and Plant Analysis, 43(3): 571–588.

Li N, Wang G X, Yang Y, et al. 2011a. Plant production, and carbon and nitrogen source pools, are strongly intensi?ed by experimental warming in alpine ecosystems in the Qinghai-Tibet Plateau. Soil Biology and Biochemistry, 43(5): 942–953.

Li N, Wang G X, Yang Y, et al. 2011b. Short-term effects of temperature enhancement on community structure and biomass of alpine meadow in the Qinghai-Tibet Plateau. Acta Ecologica Sinica, 31(4): 895–905. (in Chinese)

Melillo J M, McGuire A D, Kicklighter D W, et al. 1993. Global climate change and terrestrial net primary production. Nature, 363(6426): 234–240.

Nijs I, Kockelbergh F, Teughels H, et al. 1996. Free Air Temperature Increase (FATI): a new tool to study global warming effects on plants in the field. Plant, Cell & Environment, 19(4): 495–502.

Niu K C, Zhang S T, Zhao B B, et al. 2010. Linking grazing response of species abundance to functional traits in the Tibetan alpine meadow. Plant and Soil, 330(1–2): 215–223.

Niu S L, Han X G, Ma K P, et al. 2007. Field facilities in global warming and terrestrial ecosystem research. Journal of Plant Ecology, 31(2): 262–271. (in Chinese)

Oreskes N. 2004. The scientific consensus on climate change. Science, 306(5702): 1686.

Parmesan C, Yohe G. 2003. A globally coherent ?ngerprint of climate change impacts across natural systems. Nature, 421(6918): 37–42.

Root T, Price J T, Hall K R, et al. 2003. Fingerprints of global warming on wild animals and plants. Nature, 421(6918): 57–60.

Rowlands D J, Frame D J, Ackerley D, et al. 2012. Broad range of 2050 warming from an observationally constrained large climate model ensemble. Nature Geoscience, 5(4): 256–260.

Sala O E, Chapin F S III, Armesto J J, et al. 2000. Global biodiversity scenarios for the year 2100. Science, 287(5459): 1770–1774.

Shaver G R, Canadell J, Chapin F S III, et al. 2000. Global warming and terrestrial ecosystems: a conceptual framework for analysis. BioScience, 50(10): 871–882.

Shi F S, Chen H, Chen H F, et al. 2012. The combined effects of warming and drying suppress CO2 and N2O emission rates in an alpine meadow of the eastern Tibetan Plateau. Ecological Research, 27(4): 725–733.

Sjögersten S, Turner B L, Mathieu N, et al. 2003. Soil organic matter biochemistry and potential susceptibility to climate change across the forest-tundra ecotone in the Fennoscandian mountains. Global Change Biology, 9(5): 759–772.

Tarnocai C. 1999. The effect of climate warming on the carbon balance of cryosols in Canada. Permafrost and Periglacial Process, 10(3): 251–263.

Thomas C D, Cameron A, Green R E, et al. 2004. Extinction risk from climate change. Nature, 427(6970): 145–148.

Trilica M J, Rittenhouse L R. 1993. Grazing and plant performance. Ecological Applications, 3(1): 21–23.

Wan S Q, Luo Y Q, Wallac L L. 2002. Changes in microclimate induced by experimental warming and clipping in tallgrass prairie. Global Change Biology, 8(8): 754–768.

Wan S Q, Hui D F, Wallace L, et al. 2005. Direct and indirect effects of experimental warming on ecosystem carbon processes in a tallgrass prairie. Global Biogeochemical Cycles, 19(2), doi: 10.1029/2004 GB002315.

Wang H D, Zhang L L, Zhu Z H. 2013. Effects of clipping and fertilizing on the relationships between species diversity and ecosystem functioning and mechanisms of community stability in alpine meadow. Chinese Journal of Plant Ecology, 37(4): 279–295. (in Chinese)

Wang X M, Chen F H, Dong Z B. 2006. The relative role of climatic and human factors in deserti?cation in semiarid China. Global Environmental Change, 16(1): 48–57.

Xiong P, Xu Z F, Lin B, et al. 2010. Short-term response of winter soil respiration to simulated warming in a Pinus armandii plantation in the upper reaches of the Minjiang River, China. Chinese Journal of Plant Ecology, 34(12): 1369–1376. (in Chinese)

Xue X, Luo Y Q, Zhou X H, et al. 2011. Climate warming increases soil erosion, carbon and nitrogen loss with biofuel feedstock harvest in tallgrass prairie. Global Change Biology Bioenergy, 3(3): 198–207.

Yang M X, Yao T D, Gou X H, et al. 2003. The soil moisture distribution, thawing-freezing processes and their effects on the seasonal transi-tion on the Qinghai-Xizang (Tibetan) Plateau. Journal of Asian Earth Sciences, 21(5): 457–465.

Yang M X, Nelson F E, Shiklomanov N I, et al. 2010. Permafrost degradation and its environmental effects on the Tibetan Plateau: A review of recent research. Earth-Science Reviews, 103(1–2): 31–44.

Yang Y H, Fang J Y, Ji C J, et al. 2009. Above- and belowground biomass allocation in Tibetan grasslands. Journal of Vegetation Science, 20(1): 177–184.

Yang Y H, Fang J Y, Ma W H, et al. 2010. Large-scale pattern of biomass partitioning across China’s grasslands. Global Ecology and Biogeography, 19(2): 268–277.

Yang Z L, van Ruijven J, Du G Z. 2011. The effects of long-term fertilization on the temporal stability of alpine meadow communities. Plant and Soil, 345(1–2): 315–324.

Yang Z L, Zhang J Y, Chu L L, et al. 2012. Effects of fertilization and mowing on community biomass compensation in eastern alpine meadow of Tibetan Plateau. Chinese Journal of Ecology, 31(9): 2276–2282. (in Chinese)

Zhang T J. 2007. Perspectives on environmental study of response to climatic and land cover/land use change over the Qinghai-Tibetan Plateau: an introduction. Arctic, Antarctic, and Alpine Research, 39(4): 631–634.

Zhang Y Q, Welker J M. 1996. Tibetan alpine tundra response to simu-lated changes in climate: aboveground biomass and community re-sponses. Arctic and Alpine Research, 28(2): 203–209.

Zhao W, Chen S, Lin G. 2008. Compensatory growth responses to clipping defoliation in Leymus chinensis (Poaceae) under nutrient addition and water de?ciency conditions. Plant Ecology, 196(1): 85–99.

Zhao X Q, Zhou X M. 1999. Ecological basis of alpine meadow ecosystem management in Tibet: Haibei Alpine Meadow Ecosystem Research Station. Ambio, 28(8): 642–647.

Zhou X H, Wan S Q, Luo Y Q. 2007. Source components and interannual variability of soil CO2 ef?ux under experimental warming and clipping in a grassland ecosystem. Global Change Biology, 13(4): 761–775.

 
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