松嫩平原碱化草甸旱地生境芦苇种群的芽流和芽库动态

摘要/Abstract

摘要： 在松嫩平原碱化草甸,旱地生境芦苇种群的根茎分布在土层约1m的不同深度,一般可生活6个年度,个别根茎可存活7～9年,乃至更长的时间.通过芦苇根茎芽调查,创建了植物种群的芽流模型.提出了采用当年1龄级根茎芽的输入率与其它龄级休眠芽库存率之和估计芦苇种群芽库贮量动态的方法.结果表明,随着生长季的进程,芦苇种群芽库输入率呈不断增加趋势,而萌发输出率呈不断减少的趋势,死亡输出率则大体保持相同的较低水平.至休眠前期的9月底,芽库输入率已为输出率的2.04倍.在松嫩平原碱化草甸旱地生境,芦苇种群各龄级根茎的休眠芽有一个稳定的萌发输出过程.定量分析结果表明,芦苇种群不同龄级根茎的休眠芽每年都有11%的比率萌发形成1龄级新根茎.1龄级根茎顶端翌年发育为分蘖株后,可为直接相连接的老龄级根茎就近输送养分,从而实现老龄级根茎芽的活力.

关键词: 芦苇, 根茎, 龄级, 芽库, 芽流模型, 碱化草甸, 旱地生境

Abstract: In the dry land habitat of alkalinized meadow in Songnen Plains,the rhizomes of Phragmites communis population are distributed in different depths of one meter soil layer,which usually live for 6 years and a few for 7～9 years or even longer.Based on the investigation of their buds,a "bud flow" model of the population was established,and the method for estimating the dynamics of its bud bank storage,i.e.,adding the input rate of 1 st year age-class rhizome buds to the storage rate of other age-classes dormant buds in the bank,was put forward.The results showed that the input rate of the bud bank increased with plant growth seasons while the burgeoned output rate exhibited a decreasing trend,whereas the output rate of the dead remained at a low level on the whole.By the end of September in the early dormant period,the input rate of the bud bank was as 2.04 times as its output rate,and the dormant buds of each age-class manifested a steady burgeoned output.Quantitative analysis indicated that the burgeoned output rate of dormant buds increased by 11% each year.In another word,11% of different age-classes dormant buds would germinate and form one-year class new rhizomes.The top of one-year class new rhizomes would develop to ramets in the next year,which would transport nutrients to nearby old-age rhizomes,and thus,maintain the vitality of old-age class rhizomes.

Key words: Phragmites communis, Rhizome, Age class, Bud bank, Bud flow model, Dry land habitat, Alkalinized meadow

中图分类号:

Q945.3
Q948

杨允菲, 魏春雁, 张宝田, 刘宝. 松嫩平原碱化草甸旱地生境芦苇种群的芽流和芽库动态[J]. 应用生态学报, 2005, 16(5): 854-858.

参考文献

[1] BaL(巴雷),WangD-L(王德利),LiuY(刘颖),etal.2002.Analysis on competition and coexistence patterns of Aneurolepidium chinense and its main companion species. Chin J Appl Ecol (应用生态学报), 13(1) :50～54(in Chinese)
[2] Buttery BR, Lambert JM. 1965. Competition between Glyceria maxima and Phragmites communis in the region of Surlingham Broad Ⅰ. The competition mechanism. J Ecol, 53:163～181
[3] Chen M-J(陈默君), Jia S-X(贾慎修). 2002. Forage Floras of China. Beijing:Agricultural Press. 253～255(in Chinese)
[4] Ekstan B. 1995. Ramet size equalization in a clonal plant, Phragmites australis. Oecologia, 104:440～446
[5] Gao H-Y(高辉远),Li W-J(李卫军),Xu J(徐江), et al. 1995.Diurnal course of photosynthesis and respiration in reed leaves of different growth forms in plain desert area of Northern Xinjiang.Grassland China(中国草地), 17(5) :53～59(in Chinese)
[6] Graneli W, Weisner SEB, Sytsma MD. 1992. Rhizome dynamics and resource storage in Phragmites australis. Wetlands Ecol Man,1:239～247
[7] Guo X-Y(郭晓云), yang Y-F(杨允菲), Li J-D(李建东). 2003.Study on the photosynthesis characteristics of in the leaves of Phragmites communis in different dry land habitat in tne Songnen Plains in China. Acta Pratacul Sin (草业学报), 12(3) :16 ～23 (in Chinese)
[8] Hellings SE, Gallagher JL. 1992. The effects of salinity and flooding on Ph ragmites australis. J Appl Ecol, 29:41 ～49
[9] Haslam SM. 1969. Stem types of Phragmites communis Trin. Ann Bot, 33:127～131
[10] Haslam SM. 1969. The development of shoots in Phragmites communis Trin. Ann Bot, 33:695 ～709
[11] Haslam SM. 1969. The development and emergence of buds in Phragmites communis Trin. Ann Bot, 33:289 ～301
[12] Haslam SM. 1970. The performance of Phragmites communis Trin. in relation to water supply. Ann Bot, 34:867 ～877
[13] Haslam SM. 1975. The performance of Phragmites communis Trin. in relation to temprature. Ann Bot, 39:881 ～888
[14] Haslam SM. 1970. The development of the annual population in Phragmites communis Trin. Ann Bot, 34:571 ～591
[15] Haslam SM. 1971. Community regulation in Phragmites communis Trin. Ⅰ. Monodominant stands. J Ecol, 59:65～74
[16] Haslam SM. 1971. Community regulationin Phragmites communis Trin. Ⅱ. Mixed stands. J Ecol, 59:75 ～88
[17] Hellings SE, Gallagher JL. 1992. The effects of salinity and flooding on Phragmites australis. J Appl Ecol, 29:41 ～49
[18] Li J-D(李建东), Zheng H-Y(郑慧莹). 1997.The Saline Grassland Restoration and the Biological Ecological Mechanisms on the Songnen Plains. Beijing:Science Press. 1 ～5(in Chinese)
[19] Li H(李红),Yang Y-F(杨允菲),Qiao X-B(乔喜波).2000.Age structure of tillers of Hordeum brevisubulatum clone in Songnen plain of China. Chin J Appl Ecol(应用生态学报), 11(3) :403～407(in Chinese)
[20] Liu Y(刘颖),Wang D-L(王德利),Wang X(王旭),et al.2002. Comparison of leaf tissue turnover for Leymus chinensis and Phragmites communis after grazing. Chin J Appl Ecol (应用生态学报), 13(5) :573～576(in Chinese)
[21] Mook JH, Van der Toorn J. 1982. The influence of environmental factors of management on stands of Phragmites australis Ⅱ. Effects on yield and its relationships with shoot density. J Appl Ecol,19:501～517
[22] Van der Toorn J, Mook JH. 1982. The influence of environmental factors of management on stands of Phragmites australis Ⅱ. Effects of burning, frost and insect damage on shoot density and shoot size. J Appl Ecol, 19:477～499
[23] Wang H-L(王洪亮), Zhang C-L(张承烈). 1993. Comparative investigation on plasmolemma properties of different reed ecotypes in Hexi Corridor. Acta Bot Sin (植物学报), 35 (7):533 ～540 (in Chinese)
[24] Wang H-L(王洪亮),Zhang C-L(张承烈).1993.Seasonal changes of polyamine concentrations and arginine decarboxylase activities in leaves of 4 ecotypes of reeds. Acta Bot Sin (植物学报), 35(12):936～942 (in Chinese)
[25] Yang Y-F(杨允菲), Li J-D(李建东). 2003. Biomass allocation and growth analysis on the ramets of Phragmites communis populations in different habitats in the Songnen Plains of China. Chin J Appl Ecol(应用生态学报), 14(1) :30～34(in Chinese)
[26] Yang Y-F(杨允菲), Lang H-Q(郎惠卿). 1998. A study of population regulation of Phragmites communis as a clonal plant in different ecological conditions. Acta Pratacul Sin (草业学报), 7(2):1 ～9(in Chinese)
[27] Yang Y-F(杨允菲), Zhang B-T(张宝田), Li J-D(李建东). 2004.Structure and development regulation on dormancy modules of Hordeum brevisubulatum clone on cultivated condition in the Songnen Plains of China. Acta Ecol Sin (生态学报), 24(2) :268～273 (in Chine se)
[28] Yang Y-F(杨允菲), Liu G-C(刘庚长), Zhang B-T(张宝田).1995. An analysis of age structure and the strategy for asexual propagation of Aneulolepidium chinense population. Acta Bot Sin(植物学报), 37(2):147～153(in Chinese)
[29] Yang Y-F(杨允菲), Zheng H-Y(郑慧莹), Li J-D(李建东).1998. Methods of study on age structure of clonal population in rhizome type grass. J Northeast Normal Univ(Nat Sci)(东北师范大学·自然科学版), 30(1) :49～53(in Chinese)
[30] Yang Y-F(杨允菲),Zhang B-T(张宝田),Li J-D(李建东).2003.Module structure of Leymus chinensis clones under cultivated condition in Songnen Plains of China. Chin J Appl Ecol(应用生态学报), 14(11):1847～1850 (in Chinese)
[31] Zheng W-J(郑文菊),Wang S(王双),Zhang C-L(张承烈).1999. A study on the leaf structure of four reed (Phragmites communis Trin.) ecotypes. Acta Bot Sin (植物学报), 41 (6):580 ～584(in Chinese)
[32] Zheng W-J(郑文菊), Chen G-C(陈国仓), Zhang C-L(张承烈), et al. 2002. Physiological adaptation of habitat by ion distribution in the leaves of four ecotypes of reed (Phragmites australis). Acta Bot Sin(植物学报), 44(1):82～87(in Chinese)
[33] Zheng X-P(郑学平), Zhang C-L(张承烈), Chen G-C(陈国仓).1993. Investigation on the adaptation of photosynthetic carbon metabolism pathway to environment of Phragmites communis in Xexi Corridor of Gansu province. Acta Phytoecol Geobot Sin (植物生态学与地植物学学报), 17(1):1 ～8(in Chinese)