沙地柏对除叶干扰的生理和生长响应

应用生态学报 ›› 2001, Vol. ›› Issue (2): 175-178.

沙地柏对除叶干扰的生理和生长响应

何维明

中国科学院植物研究所植被数量生态学开放研究实验室, 北京100093

收稿日期:1999-10-07 修回日期:2000-09-26 出版日期:2001-03-25
基金资助:
中国科学院资源与生态环境研究重大项目和重点资助项目(KZ951B1108&KZ952S1126)

Physiological and growth responses of Sabina vulgaris to disturbance of leaf removal

HE Weiming

Laboratory of Quantitative Vegetation Ecology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093

Received:1999-10-07 Revised:2000-09-26 Online:2001-03-25

摘要/Abstract

摘要： 为了研究沙地柏对模拟自然干扰的生理和生长响应,在毛乌素沙地对它进行了以人为除叶为处理的模拟山羊啃食、虫害实验.结果表明,除叶干扰通过改变生理指标峰值出现的时间影响日动态,并显著影响生理指标的日平均值;除叶干扰对当年生枝生物量分配的影响不明显,但显著影响其生长特征;除叶干扰的最终效应受干扰方式和强度的双重制约,不同生理、生长指标对除叶干扰的敏感性存在差异,如净光合速率和蒸腾速率;除叶干扰具有补偿效应,尤其是除老叶,因此适度剪除2年生以下枝条上的叶可促进当年生枝的生长和生物量积累.

Abstract: To examine the physiological and growth responses of Sabina vulgaris to natural disturbance, a field experiment to simulate the grazing and pest disturbance was conducted in Maowusu sandy land through artificially removing leaves.The disturbance of leaf removal could modify the species’ diurnal physiological dynamics through changing the timing of extreme values,and moreover,change the average daily values of physiological indexes significantly.Leaf removal could affect the growth traits,but not biomass allocation significantly.The consequences of the distrubance were confined by its means and intensity,and there existed significant differences in sensitivity of different physiological and growth characteristics e.g.,net photosynthesis rate and transpiration rate to leaf removal.The disturbance of leaf removal,especially that of old leaf removal,had compensation effects.Therefore,moderately removing the leaves on the shoots with less than 2 years old could enhance the growth and the biomass accumulation of curent-year shoots.

中图分类号:

Q948.11

何维明. 沙地柏对除叶干扰的生理和生长响应[J]. 应用生态学报, 2001, (2): 175-178.

HE Weiming . Physiological and growth responses of Sabina vulgaris to disturbance of leaf removal[J]. Chinese Journal of Applied Ecology, 2001, (2): 175-178.

参考文献

[1] Bazzaz FA. 1996. Plants in Changing Environments: Linking Physiological, Populations, and Community Ecology. London: Cambridge University Press. 14～37
[2] Boucher DH, Vandermeer JH, Yih K et al. 1990. Contrasting damage in tropical rain forest and pine forest. Ecology, 71(6) :2022～2024
[3] Brewer JS, Leving JM and Bermeas MD. 1998. Interactive effects of elevation and burial with wrack on plant community structure in someRhode Island salt marshes. J Ecol, 86(1): 125～136
[4] Buckley DS, Sharik TL and Isebrands JG. 1998. Regeneration of northern red oak:Positive and negative effects of competitor removal.Ecology, 79 (1): 65～78
[5] DeGrandpre L and Bergeron Y. 1997. Diversity and stability of understorey communities following disturbance in the southern boreal forest.J Ecol, 85(6) :777～784
[6] Den Dubbleden KC and Oosterbeek B. 1995. The availability of external support affects allocation patterns and morphology of herbaceousclimbing plants. Funct Ecol, 9 (4): 628～634
[7] Editorial Committee for Flora of Chim (中国植物志编委会)1978.Flora of China(Vol. 7). Beijing: Science Press. 359～360(in Chinese)
[8] Keough MJ and Quinn GP. 1998. Effects of periodic disturbances from trampling on rockey intertidal algal beds. Ecol Appl, 8(1): 141～161
[9] Li B(李博).1990. Studies on Natural Resources and Environmentsof Ordos Plateau in Inner Mongolia. Beijing: Science Press. 99～103 (inChinese)
[10] Li Y-Z(李云章),Li C-H(李春和),Wang L-H(王林和)1996.Studies of growth and regeneration in Sabina vulgaris. J Inner MongoliaFor Coll(内蒙古林学院学报),18(4):l～5(in Chinese)
[11] Long SP, Baker NR and Raines CA. 1993. Analyzing the response of photosynthetic CO₂ assimilation to long-term elevation of atmosphericCO₂ concentration. Vegatatio, 104/105: 33～45
[12] Matlsck GR, Gleeson SK and Good RE. 1993. Treefall in a mixed oakpine coastal plain forest: immediate and historical causation. Ecology,74:1559～1566
[13] Mattila J. 1997. The importance of shelter, disturbance and prey interactions for predation rates of tube-building polychaetes (Pygospio elegans(Claparede)) and free-living tubificid oligochaetes. J Exp Mar Biol Ecol, 218(2) :215～228
[14] McIlwan JL and Jones GP. 1997. Prey selection by an obligate coralfeeding wrasse and its response to small-scale disturbance. Mar EcolProgr Series, 155:189～198
[15] Radford PJ. 1967. Growth analysis formulae - their use and abuse.Crop Sci, 7(3): 171～175
[16] su S-P(苏世平),Li L-X(李兰晓).1987. Study on biological and ecological traits in Sabina vulgaris. J Northwest China For Coll(西北林学院学报),2(2):29～40(in Chinese)
[17] ZhangG-S(张国盛),Dong Z(董智),Wang L-H(王林和)1997.Review on biological and ecological characteristics in Sabina vulgaris.J Inner Mongolia For Coll(内蒙古林学院学报),19(2):69～75(inChinese)
[18] Zhang X-S (张新时).1994. The ecological background of the Mu ussandland and the principles and optional models for grassland managemerit. Acta Photoecol Sin(植物生态学报),18(1):1～16(in Chinese)