黄土区长期封育草地优势物种生态位宽度与生态位重叠对不同干扰的响应特征

doi:10.11686/cyxb2014410

摘要/Abstract

摘要： 运用Levins生态位宽度指数和Pianka生态位重叠指数及物种丰富度,初步分析了长期封育草地优势种群生态位对放牧、火烧和施肥的响应特征。结果表明:在封育(对照组)、放牧、火烧和施肥干扰下,生态位宽度最大的物种依次是白颖苔草、中华小苦荬、白莲蒿和本氏针茅;建群种本氏针茅在不同干扰下生态位宽度表现为施肥(1.362)>火烧(1.244)>封育(1.088)>放牧(1.026),物种丰富度指数则依次为放牧>施肥>火烧>封育。所有物种和优势种的生态位重叠指数平均值均表现为施肥>封育>火烧>放牧,且在各干扰下,生态位重叠指数最大的种对依次为本氏针茅和白颖苔草、大针茅和白颖苔草、大针茅和白颖苔草以及中华小苦荬和硬质早熟禾。综上所述,对长期封育的草地进行适度的干扰可提高物种丰富度,改善种群的生态位配置和最大限度地利用环境资源。

Abstract: The Levins niche breadth and Pianka niche overlap indices were used to assess the response of plant population niches to grazing, burning and fertilization in permanently fenced grassland of the Loess Plateau region. Species with highest niche width in fenced (control group), grazed, burned and fertilized grasslands were Carex rigesaens, Ixeridium chinense, Artemisia sacrorum, and Stipa bungeana, respectively. The niche breadth of S. bungeana in different disturbance situations (ranked highest to lowest) was: fertilization (1.362)>burning (1.244)>fencing (1.088)>grazing (1.026). The richness index for the same four treatments ranked: grazing>fertilization>burning>fencing. The average values of niche overlap of all the species and dominant species ranked: fertilization>fencing>burning>grazing. The pairs of species with the highest niche overlap in fertilized, fenced, burned, and grazed grasslands were, respectively, S. bungeana and C. rigesaens, Stipa grandis and C. rigesaens, S. grandis and C. rigesaens, and I. chinense and Poa sphondylodes, respectively. These findings indicate that human disturbance can increase the species richness and improve plant population niche width to facilitate maximum resource use in permanently fenced grassland.

井光花,程积民,苏纪帅,魏琳,史晓晓,金晶炜. 黄土区长期封育草地优势物种生态位宽度与生态位重叠对不同干扰的响应特征[J]. 草业学报, 2015, 24(9): 43-52.

JING Guang-Hua, CHENG Ji-Min, SU Ji-Shuai, WEI Lin, SHI Xiao-Xiao, JIN Jing-Wei. Response of dominant population niche breadths and niche overlaps to various disturbance factors in typical steppe fenced grassland of China’s Loess Plateau region[J]. Acta Prataculturae Sinica, 2015, 24(9): 43-52.

参考文献

[1] Zhou P, Liu G B, Xue S. Review of soil respiration and the impact factors on grassland ecosystem. Acta Prataculturae Sinica, 2009, 18(2): 184-193.
[2] Shan Q L, Xu Z, Ning F, et al . Influence of exclosure year on community structure and species diversity on a typical steppe. Acta Prataculturae Sinica, 2008, 17(6): 1-8.
[3] Wang C Y, Zhang J J, Lv Y L, et al . Effects of long-term grazing exclusion on soil organic carbon fractions in the grassland of Inner Mongolia. Acta Prataculturae Sinica, 2014, 23(5):31-39.
[4] Jing Z B, Cheng J M, Chen A. Assessment of vegetative ecological characteristics and the succession process during three decades of grazing exclusion in a continental steppe grassland. Ecological Engineering, 2013, 57:162-169.
[5] Zhang J J, Xu D M. Niche characteristics of dominant plant populations in desert steppe of Ningxia with different enclosure times. Acta Agrestia Sinica, 2013, 21(1):73-78.
[6] Dao R N, Wang S S, Li J Q, et al . Plant niche changes of the rehabilitating water and soil conservation vegetations in Taizi watershed. Journal of Northeast Forestry University, 2014, 42(1): 37-41, 70.
[7] Zhong Y, Zhang J, Liu Q B, et al . Niche characteristics of main herbage populations in Eucalyptus grandis plantation. Acta Prataculturae Sinica, 2010, 19(4): 16-21.
[8] Hu Z H, Qian H Y, Yu M J. The niche of dominant species populations in Castanopsis eyrei forest in Gutian Mountain National Nature Reserve. Acta Ecologica Sinica, 2009, 29(7): 3670-3677.
[9] Li B, Li S Q, Zhang J T. A study on niches of dominant species of subalpine meadow in the Yunding Mountain. Acta Prataculturae Sinica, 2010, 19(1): 6-13.
[10] Li F, Xie Y H, Chen X S, et al . Composition of aquatic plants and their niche characteristics in wetlands of the Yellow River Delta. Acta Ecologica Sinica, 2009, 29(11): 6257-6265.
[11] Germain R M, Gibert B. Hidden responses to environmental variation: maternal effects reveal species niche dimensions. Ecology Letters, 2014, 17(6): 662-669.
[12] Zhang Y X, Yao T, Wang G J, et al . Characteristics of vegetation and soil inorganic nitrogen concentrations under different disturbed habitats in a weak alpine ecosystem. Acta Prataculturae Sinica, 2014, 23(4): 245-252.
[13] Zhang T, Weng Y, Yao F J, et al . Effect of grazing intensity on ecological stoichiometry of Deyeuxia angustifolia and meadow soil. Acta Prataculturae Sinica, 2014, 23(2):20-28.
[14] Chen Z X, Tian F P, Zheng Y. Effects of fertilization on niche of main plant species in Maqu alpine desertification meadow. Acta Agrestia Sinica, 2011, 19(4): 884-888.
[15] Han F H, Wang S P, Chen Z Z. Response of the major plant populations of Inner Mongolia typical steppe to grazing rate based on niche considerations. Acta Agrestia Sinica, 1999, 7(3): 204-210.
[16] Dong Q M, Zhao X Q, Ma Y S, et al . Effects of grazing on the major plant populations niche in alpine Kobrecia parva meadow cold-seasonal pastureland. Chinese Journal of Grassland, 2006, 28(6): 10-17.
[17] Wu G L, Zhao L P, Wang D, et al . Effects of time-since-fire on vegetation composition and structures in semi-arid perennial grassland on the Loess Plateau, China. Clean-Soil, Air, Water, 2014, 42(1): 98-103.
[18] Chen F R, Cheng J M, Liu W, et al . Effects of different disturbances on soil physical and chemical properties in the typical grassland of Loess Region. Journal of Soil and Water Conservation, 2012, 26(2): 105-111.
[19] Jing Z B, Cheng J M, Su J S, et al . Changes in plant community composition and soil properties under 3-decade grazing exclusion in semiarid grassland. Ecological Engineering, 2014, 64: 171-178.
[20] Chen F R, Cheng J M, Liu W, et al . Effects of different disturbances on diversity and biomass of communities in the typical steppe of loess region. Acta Ecologica Sinica, 2013, 33(9): 2856-2866.
[21] Li Y, Cheng J M, Wei L, et al . Changes of soil chemical properties after different burning years in typical steppe of Yunwun Mountains. Acta Ecologica Sinica, 2013, 33(7): 2131-2138.
[22] Jia X X, Shao M A, Wei X R. Soil CO 2 efflux in response to the addition of water and fertilizer in temperate semiarid grassland in northern China. Plant Soil, 2013, 373: 125-141.
[23] Li R, Zhang K B, Liu Y F, et al . Plant community spatial distribution pattern of wetland ecosystem in a semi-arid region of northwestern China. Journal of Beijing Forestry University, 2008, 30(1): 6-13.
[24] Tang J M, Ai X R, Yi Y M, et al . Niche dynamics during restoration process for the dominant tree species in montane mixed evergreen and deciduous broadleaved forests at Mulinzi of southwest Hubei. Acta Ecologica Sinica, 2012, 32(20): 6334-6342.
[25] Niu K, Choler P, Bello F, et al . Fertilization decreases species diversity but increases functional diversity: A three-year experiment in a Tibetan alpine meadow. Agriculture Ecosystem & Environment, 2014, 182: 106-112.
[26] Yu S X, Orloci L. On the implications of fundamental, realized niche and niche center. Acta Scientiarum Naturalium Universitatis Sunyatseni, 1993, 32(4): 69-80.
[27] Li M, Jiang D M, Toshio O, et al . Niche characteristic of herbages in artificial sand-fixing communities in Horqin sandy land. Pratacultural Science, 2009, 26(8): 10-16.
[28] Zhang Z H, Liang S C, Hu G. Niche characteristics of dominant populations in Cinnamomum burmannii community on Karst Hills of Guilin. Forest Research, 2009, 22(1): 63-68.
[29] Silvertown J W. Plants in limestone pavements: tests of species interaction and niche separation. Journal of Ecology, 1983, 71: 819-828.
[30] Shi Z M, Cheng R M, Liu S R. Niche characteristics of plant populations in deciduous broad-leaved forest in Baotianman. Chinese Journal of Applied Ecology, 1999, 10(3): 265-269.
[31] Chen Z X, Tian F P, Niu J Y, et al . Effects of fertilization on niche of main plant species in Maqu alpine desertification meadow. Acta Agrestia Sinica, 2007, 15(6): 525-530.
[32] Wang R Z. The niche breadths and niche overlaps of main plant populations in Leymus chinese grassland for grazing. Acta Phytoecologica Sinica, 1997, 21(4): 304-311.
[33] Wen L, Dong S K, Zhu L, et al . The effect of natural factors and disturbance intensity on spatial heterogeneity of plant diversity in alpine meadow. Acta Ecologica Sinica, 2011, 31(7): 1844-1854.
[34] Tang C Q, He L Y, Su W H, et al . Regeneration, recovery and succession of a Pinus yunnanensis community five years after a mega-fire in central Yunnan, China. Forest Ecology and Management, 2013, 294: 188-196.
[35] Wang H, Xie Y S, Cheng J M, et al . Allelopathic effects of Artemisia sacrorum population in typical steppe based on niche theory. Chinese Journal of Applied Ecology, 2012, 23(3): 673-678.
[36] Chen Y M, Li Z Z, Du G Z. Effects of fertilization on plant diversity and economic herbage groups in alpine meadow. Acta Botanica Boreali-Occidentalia Sinica, 2004, 24(3): 424-429.
[37] Wang H L, Niu J Y, Zheng H P, et al . Research on characteristics of plant niche and effects of fertilization on plant productivity in a Maqu Alpine desertified meadow. Acta Prataculturae Sinica, 2008, 17(6): 18-24.
[38] Niu K C, Luo Y J, Choler P, et al . The role of biomass allocation strategy on diversity loss due to fertilization. Basic and Applied Ecology, 2008, 9(5): 485-493.
[39] Gilliam F S. Response of the herbaceous layer of forest ecosystems to excess nitrogen deposition. Journal of Ecology, 2006, 94: 1176-1191.
[1] 周萍, 刘国彬, 薛萐. 草地生态系统土壤呼吸及其影响因素研究进展. 草业学报, 2009, 18(2): 184-193.
[2] 单贵莲, 徐柱, 宁发, 等. 围封年限对典型草原群落结构及物种多样性的影响. 草业学报, 2008, 17(6): 1-8.
[3] 王春燕, 张晋京, 吕瑜良, 等. 长期封育对内蒙古羊草草地土壤有机碳组分的影响. 草业学报, 2014, 23(5):31-39.
[5] 张晶晶, 许冬梅. 宁夏荒漠草原不同封育年限优势种群的生态位特征. 草地学报, 2013, 21(1):73-78.
[6] 道如娜, 王树森, 李建强, 等. 太子河流域水源涵养林恢复植被的植物生态位变化. 东北林业大学学报, 2014, 42(1): 37-41, 70.
[7] 钟宇, 张健, 刘泉波, 等. 巨桉人工林草本层主要种群的生态位分析. 草业学报, 2010, 19(4): 16-21.
[8] 胡正华, 钱海源, 于明坚. 古田山国家级自然保护区甜槠林优势种群生态位. 生态学报, 2009, 29(7): 3670-3677.
[9] 李斌, 李素清, 张金屯. 云顶山亚高山草甸优势种群生态位研究. 草业学报, 2010, 19(1): 6-13.
[10] 李峰, 谢永宏, 陈心胜, 等. 黄河三角洲湿地水生植物组成及生态位.生态学报, 2009, 29(11): 6257-6265.
[12] 张玉霞, 姚拓, 王国基, 等. 高寒生态脆弱区不同扰动生境草地植被及土壤无机氮变化特征. 草业学报, 2014, 23(4): 245-252.
[13] 张婷, 翁月, 姚凤娇, 等. 放牧强度对草甸植物小叶章及土壤化学计量比的影响. 草业学报, 2014, 23(2):20-28.
[14] 陈子萱, 田福平, 郑阳. 施肥对玛曲高寒沙化草地主要植物种生态位的影响. 草地学报, 2011, 19(4): 884-888.
[15] 韩范鸿, 汪诗平, 陈佐忠. 以放牧率梯度研究内蒙古典型草原主要植物种群的生态位. 草地学报, 1999, 7(3): 204-210.
[16] 董全民, 赵新全, 马玉寿, 等. 放牧对高寒小嵩草草甸冷季草场主要植物种群生态位的影响. 中国草地学报, 2006, 28(6): 10-17.
[18] 陈芙蓉, 程积民, 刘伟, 等. 不同干扰对黄土区典型草原土壤理化性质的影响. 水土保持学报, 2012, 26(2): 105-111.
[20] 陈芙蓉, 程积民, 刘伟, 等. 不同干扰对黄土区典型草原物种多样性和生物量的影响. 生态学报, 2013, 33(9): 2856-2866.
[21] 李媛, 程积民, 魏琳, 等. 云雾山典型草原火烧不同恢复年限土壤化学性质变化. 生态学报, 2013, 33(7): 2131-2138.
[23] 李瑞, 张克斌, 刘云芳, 等. 西北半干旱区湿地生态系统植物群落空间分布特征研究. 北京林业大学学报, 2008, 30(1): 6-13.
[24] 汤景明, 艾训儒, 易咏梅, 等. 鄂西南木林子常绿落叶阔叶混交林恢复过程中优势树种生态位动态. 生态学报, 2012, 32(20): 6334-6342.
[26] 余世孝, 奥罗西L. 基础与实现生态位及其中心点的涵义与测度. 中山大学学报(自然科学版), 1993, 32(4): 69-80.
[27] 李明, 蒋德明, 押田敏雄, 等. 科尔沁沙地人工固沙群落草本植物种群生态位特征. 草业科学, 2009, 26(8): 10-16.
[28] 张忠华, 梁士楚, 胡刚. 桂林岩溶石山阴香群落主要种群生态位研究. 林业科学研究, 2009, 22(1): 63-68.
[30] 史作民, 程瑞梅, 刘世荣. 宝天曼落叶阔叶林种群生态位特征. 应用生态学报, 1999, 10(3): 265-269.
[31] 陈子萱, 田福平, 牛俊义, 等. 施肥对玛曲高寒沙化草地主要植物种生态位的影响. 草地学报, 2007, 15(6): 525-530.
[32] 王仁忠. 放牧影响下羊草草地主要植物种群生态位宽度与生态位重叠的研究. 植物生态学报, 1997, 21(4): 304-311.
[33] 温璐, 董世魁, 朱磊, 等. 环境因子和干扰强度对高寒草甸植物多样性空间分异的影响. 生态学报, 2011, 31(7): 1844-1854.
[35] 王辉, 谢永生, 程积民, 等. 基于生态位理论的典型草原铁杆蒿种群化感作用. 应用生态学报, 2012, 23(3): 673-678.
[36] 陈亚明, 李自珍, 杜国祯. 施肥对高寒草甸植物多样性和经济类群的影响, 西北植物学报, 2004, 24(3): 424-429.
[37] 王鹤龄, 牛俊义, 郑华平, 等. 玛曲高寒沙化草地生态位特征及其施肥改良研究. 草业学报, 2008, 17(6): 18-24.