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草业学报  2012 

青藏高原东缘典型草甸与沼泽化草甸中种子雨的差异

, PP. 256-263

Keywords: 典型草甸,沼泽化草甸,种子雨,青藏高原

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Abstract:

种子雨是一种潜在群落,在多样性维持中起着重要作用。本研究以青藏高原东缘的典型草甸和沼泽化草甸为研究对象,研究了不同群落种子雨物种组成与季节动态,及其与地上植被间的关系。结果表明,1)典型草甸与沼泽化草甸植被中的物种丰富度、Shannon指数以及植株个体数虽无显著差异,但无度量多维度标定(NMDS)排序结果表明,2种群落物种组成有明显分离;2)典型草甸中种子雨密度显著高于沼泽化草甸;3)典型草甸与沼泽化草甸中种子雨密度的季节动态均呈双峰模式;4)典型草甸与沼泽化草甸中种子雨物种组成的相似性高于植被的相似性,该结果得到了NMDS排序结果的证实。

References

[1]  Harper J L. Population Biology of Plant. London: Academic Press, 1977.
[2]  Wang B, Smith T. Closing the seed dispersal loop. Trends in Ecology & Evolution, 2002, 17(8): 379-386.
[3]  李英年, 赵亮, 徐世晓, 等. 祁连山海北高寒湿地植物群落结构及生态特征.冰川冻土, 2006, 28(1): 76-84.
[4]  Schott G, Hamburg S. The seed rain and seed bank of an adjacent native tallgrass prairie and old field. Canadian Journal of Botany, 1997, 75(1): 1-7.
[5]  Rabinowitz D, Rapp J K. Seed rain in a north American tall grass prairie. Journal of Applied Ecology, 1980, 17(3): 793-802.
[6]  Ekeleme F, Okezie A I, Isichei A O, et al. Influence of fallow type and land-use intensity on weed seed rain in a forest/savanna transition zone. Weed Science, 2000, 48(5): 604-612.
[7]  邓自发, 谢晓玲, 王启基, 等. 高寒小嵩草草甸种子库和种子雨动态分析. 应用与环境生物学报, 2003, 9(1): 7-10.
[8]  Chabrerie O, Alard D. Comparison of three seed trap types in a chalk grassland: toward a standardized protocol. Plant Ecology, 2005, 176(1): 101-112.
[9]  Leck M A, Simpson R L. Tidal freshwater wetland zonation: seed and seedling dynamics. Aquatic Botany, 1994, 47(1): 61-75.
[10]  Jakobsson A, Eriksson O, Bruun H H. Local seed rain and seed bank in a species-rich grassland: effects of plant abundance and seed size. Canadian Journal of Botany, 2006, 84(12): 1870-1881.
[11]  Spence J R. Seed rain in grassland, herbfield, snowbank, and fellfield in the alpine zone, Craigieburn Range, South Island, New Zealand. New Zealand Journal of Botany, 1990, 28(4): 439-450.
[12]  Salonen V. Relationship between the seed rain and the establishment of vegetation in two areas abandoned after peat harvesting. Ecography, 1987, 10(3): 171-174.
[13]  Urbanska K M, Fattorini M. Seed rain in high-altitude restoration plots in Switzerland. Restoration Ecology, 2000, 8(1): 74-79.
[14]  Welling P, Laine K, Bakker J P. Regeneration by seeds in alpine meadow and heath vegetation in sub-arctic Finland. Journal of Vegetation Science, 2002, 13(2): 217-226.
[15]  Urbanska K M, Fattorini M. Seed rain in natural grassland and adjacent ski run in the Swiss Alps: a preliminary report. Restoration Ecology, 1998, 6(2): 159-165.
[16]  Chacón P, Cavieres L A. Recovery of alpine plants after a severe human disturbance in the Andes of central Chile. Arctic, Antarctic, and Alpine Research, 2008, 40(4): 617-623.
[17]  Jefferson R G, Usher M B. Seed rain dynamics in disused chalk quarries in the Yorkshire Wolds, England, with special reference to nature conservation. Biological Conservation, 1989, 47(2): 123-136.
[18]  Zobel M, Otsus M, Liira J, et al. Is small-scale species richness limited by seed availability or microsite availability?. Ecology, 2000, 81(12): 3274-3282.
[19]  Foster B L. Constraints on colonization and species richness along a grassland productivity gradient: the role of propagule availability. Ecology Letters, 2001, 4(6): 530-535.
[20]  Foster B L, Tilman D. Seed limitation and the regulation of community structure in oak savanna grassland.Journal of Ecology, 2003, 91(6): 999-1007.
[21]  Foster B L, Dickson T L. Grassland diversity and productivity: the interplay of resource availability and propagule pools. Ecology, 2004, 85(6): 1541-1547.
[22]  Foster B L, Dickson T L, Murphy C A, et al. Propagule pools mediate community assembly and diversity-ecosystem regulation along a grassland productivity gradient. Journal of Ecology, 2004, 92(3): 435-449.
[23]  吴征镒. 中国植被. 北京: 科学出版社, 1980.
[24]  王启基, 周兴民, 沈振西, 等. 高寒藏嵩草沼泽化草甸植物群落结构及其利用. 高寒草甸生态系统(4). 北京: 科学出版社, 1995: 91-100.
[25]  吴海艳, 马玉寿, 董全民, 等. 黄河源区藏嵩草沼泽化草甸地上生物量及营养季节动态研究. 草业科学, 2009, 26(1): 8-12.
[26]  李春秀, 孙海松. 青海省西藏嵩草沼泽化草甸资源及保护. 草业科学, 2009, 26(9): 77-83.
[27]  Wu G L, Liu Z H, Zhang L, et al. Long-term fencing improved soil properties and soil organic carbon storage in an alpine swamp meadow of western China. Plant and Soil, 2010, 332(1): 331-337.
[28]  杨成德, 陈秀蓉, 龙瑞军, 等. 东祁连山高寒草地土壤微生物量及土壤酶季节动态特征. 草业学报, 2011, 20(6): 135-142. 浏览
[29]  王国荣, 陈秀蓉, 张俊忠, 等. 东祁连山高寒灌丛草地土壤微生物生理功能群的动态分布研究. 草业学报, 2011, 20(2): 31-38.
[30]  张凡, 祁彪, 温飞, 等. 不同利用程度高寒干旱草地碳储量的变化特征分析. 草业学报, 2011, 20(4): 11-18.
[31]  Ma M J, Zhou X H, Du G Z. Soil seed bank dynamics in alpine wetland succession on the Tibetan Plateau. Plant and Soil, 2011, 346(1): 19-28.
[32]  Kettenring K, Galatowitsch S. Seed rain of restored and natural prairie wetlands. Wetlands, 2011, 31(2): 283-294.
[33]  Legendre P, Legendre L. Numerical Ecology. New York: Elsevier, 1998.
[34]  Molau U, Larsson E L. Seed rain and seed bank along an alpine altitudinal gradient in Swedish Lapland. Canadian Journal of Botany, 2000, 78(6): 728-747.
[35]  Larsson E L. Two ways of trapping seeds in alpine environments, Lapland, Sweden. Nordic Journal of Botany, 2003, 23(3): 333-343.
[36]  Crain C M, Albertson L K, Bertness M D. Secondary succession dynamics in estuarine marshes across landscape-scale salinity gradients. Ecology, 2008, 89(10): 2889-2899.
[37]  Webster T M, Cardina J, White A D. Weed seed rain, soil seedbanks, and seedling recruitment in no-tillage crop rotations. Weed Science, 2003, 51(4): 569-575.
[38]  Grulke N E, Bliss L C. A note on winter seed rain in the High Arctic. Arctic, Arctic and Alpine Research, 1983, 15(2): 261-265.
[39]  杜国祯. 草本植物群落中种间时间生态位分化、群落结构组建和多样性维持重要机制. 兰州: 兰州大学, 1992.

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