匍匐茎草本蛇莓克隆构型对不同海拔的可塑性反应

摘要/Abstract

摘要： 克隆植物构型的可塑性可使它在不同海拔的环境中通过克隆生长,调整其对不同海拔的资源获取对策,因而具有重要的生态学意义.在一海拔高度实验中,匍匐茎草本蛇莓(Duchesnea indica)经历了不同海拔(400、800、1200和1600m)处理,以研究不同海拔对蛇莓克隆构型的影响.结果表明,随着海拔的增加,间隔子长度、分株密度、分枝角度和分枝强度呈二次曲线变化.在不同海拔生境中,蛇莓克隆构型相关特征的可塑性变化可用动态Logistic模型进行模拟和预测,拟合效果较好.结合植物对环境异质性的利用对策,对所揭示的蛇莓克隆构型可塑性进行了讨论.

关键词: 蛇莓, 克隆植物, 海拔, 克隆构型, 可塑性, 营养级, 缓冲带, 湿地生态系统, 系统特征, 生态通道(EWE)模型

Abstract: Architectural plasticity of clonal plant may modify its ways of utilization of resources through clonal growth and be of ecologically importance. The plasticity of clonal architecture in response to ecological conditions at different altitudes in a stoloniferous herb, Duchesnea indica, was investigated in an experiment with different elevations of 400, 800, 1200, and 1600 m. The results showed that the change patterns of spacer length, ramet density, branching intensity, and branching angle of Duchesnea indica were in a quadratic curve when the elevation increased. The architectural plasticity of D. indica was simulated through dynamic Logistic model, and the imitative effect was statistically preferable. Combining with the resources utilization of Duchesnea indica under different environments, the architectural plasticity was also discussed in this paper.

Key words: Duchesnea indica, Clonal plant, Elevation, Clonal architecture, Plasticity, Key words: buffering zone, Ecopath with Ecosim (EWE) model, system features, trophic level, wetland ecosystem

中图分类号:

Q945.51

罗学刚, 董鸣. 匍匐茎草本蛇莓克隆构型对不同海拔的可塑性反应[J]. 应用生态学报, 2002, (4): 399-402.

LUO Xuegang, DONG Ming . Architectural plasticity of the stoloniferous herb, Duchesnea indica in response to different elevation[J]. Chinese Journal of Applied Ecology, 2002, (4): 399-402.

参考文献

[1] Baldocci D,Collineau S.1994.The physical nature of solar radiation in heter ogeneous canopy:Spatial and temporal attributes.In:Caldwell MM,Pearcy RW eds.Ex ploitation of Environmental Heterogeneity by Plants.New York:Academic Press. 107～118
[2] Cook RE.1985.Growth and development in clonal plant population.In:Jackson JBC,Buss LW,Cook RE eds.Population Biology and Evolution of Clonal Organisms.New Haven:Yale University.259～296
[3] De Kroon H,Hutchings MJ.1995.Morphological plasticity in clonal plants:Th e foraging concept reconsidered.J Ecol,83: 143～152
[4] Dong M(董鸣).1996.Clonal growth in plants in relation to resource heterogen eity:Foraging behavior.Acta Bot Sin(植物学报),38(10):828～835(in Chinese)
[5] Dong M(董鸣).1996.Plant clonal growth in heterogeneous habitats:Risk-sprea ding.Acta Phytoecol Sin(植物生态学报),20(6):543～548(in Chinese)
[6] Dong M,During HJ & Werger MJA.1996.Morphological responses to nutrient ava ilability in four clonal herbs.Vegetatio,123:183～192
[7] Dong M(董鸣).1996.Survey,Observation and Analysis of Terrestrial Biocomma nities:Beijing:China Standard Press.24～43(in Chinese)
[8] Frankland JC,Ovington JD,Marcrae C.1963.Spatial and seasonal variation i n soil,litter and vegetation in some Lake District woods.J Ecol,51:97～112
[9] Fu B-P(傅报璞),Yu J-M(虞静明),Lu Q-Y(卢其尧).1996.Mountainous Climate Res ources and Develop Use.Nanjing:Nanjing University Press.115～158(in Chinese)
[10] Huber H.1997.Architectural plasticity of stoloniferous and erect herbs in r esponse to light climate.Ph D Thesis.Utrecht:Utrecht University,The Netherlan ds.98～115
[11] Hutchings HJ,Price ACP.1993.Dose physiological integration enable clonal herbs to integrate the effects of environmental heterogeneity? Plant Species Biol,8:159～238
[12] Institute of Botany,The Chinese Academy of Sciences(中国科学院植物研究所).19 94.Inconographia Cormophytorum Sinicorum(Tomus Ⅱ).Beijing:Science Press.287 (in Chinese)
[13] Kelly VR,Canham CD.1992.Resource heterogeneity in old fields.J Veget Sci,3:545～552
[14] Lovett DL.1987.Population dynamics and local specialization in a clonal perennial (Ranunculus repens) III.Response to light and nutrient supply.J Ecol,75:555～568
[15] Luo X-G(罗学刚),Zeng M-Y(曾明颖),Zou Q(邹琦),et al.1999.Study on the c hanges in ecological environment and hybrid rice development at different altitudes in Sichuan.Chin J Appl Enviro n Biol(应用与环境生物学报),5(2):142～146(in C hinese)
[16] Luo X-G(罗学刚),Zeng M-Y(曾明颖),Zou Q(邹琦),et al.1999.Study on soybea n growth at different elevations with varied elevations ecological circumstances in Sichuan.Chin J Appl Environ Biol(应用与环境生物学报),5 (6):557～560(in Chinese)
[17] SAS.1985.SAS/STAT Guide for Professional Computers (version 6).Cray:SAS I nstitute Inc.
[18] Schmid B.1992.Phenotypic variation in plants.Evol Tren Plant,6:45～60
[19] Shen X-Y(沈信毅).1987.Study on mathematics model of seasonal growth and dec line in biological group. Chin J Ecol(生态学杂志),6 (1):46～52(in Chinese)
[20] Tang Q-Y(唐启义) & Feng M-G(冯明光).1997.Practical Statistical Analyse and Computer Conduct Platform:Beijing:China Agricultural Press.254～283(in Chinese)
[21] Yu S-W(余叔文),Tang Z-C(汤章城).1998.Plant Physiology and Molecular Bio logy.Beijing:Science Press.721～738(in Chinese)