Chin J Plan Ecolo ›› 2014, Vol. 38 ›› Issue (9): 929-940.doi: 10.3724/SP.J.1258.2014.00087

• Research Articles • Previous Articles     Next Articles

Biomass allocation and leaf stoichiometric characteristics in four desert herbaceous plants during different growth periods in the Gurbantünggüt Desert, China

XIAO Yao1,2, TAO Ye1, and ZHANG Yuan-Ming1*   

  1. 1Xinjiang Institute of Ecology and Geography, Key Laboratory of Biogeography and Bioresource in Arid Land, Chinese Academy of Sciences,Ürümqi 830011, China;

    2College of Life Sciences, Shihezi University, Shihezi, Xinjiang 832003, China
  • Received:2014-03-13 Revised:2014-08-20 Online:2014-09-22 Published:2014-09-01
  • Contact: ZHANG Yuan-Ming E-mail:zhangym@ms.xjb.ac.cn

Abstract:

Aims Plant biomass allocation and elemental homeostasis have recently become a focus in ecological studies. Herbaceous plants are a major component of species diversity in desert ecosystems. Study on biomass allocation and leaf stoichiometry with growth will be beneficial to further understanding the survival strategy and functional features of desert herbs.
Methods Four dominant species, including two ephemeral plants (Erodium oxyrrhynchum and Hyalea pulchella) and two annals (Agriophyllum squarrosum and Ceratocarpus arenarius), were selected for in situ and multipletime investigations. Changes in the characteristics of biomass allocation and leaf N-P stoichiometry, as well as their relationships were analyzed.
Important findings Root to shoot ratio decreased gradually during the accumulation of plant biomass in all the four species. The allometric relationships between above- and belowground biomass, however, varied among the four species; the allometric scaling exponents in H. pulchella and C. arenarius initially increased and then decreased, and tended to become stable toward the later period, whereas the allometric scaling exponents in E. oxyrrhynchum and A. squarrosum initially increased and then tended to be isometry in later period. The leaf N and P contents tended to increase in H. pulchella, but declined in other three species with growth, indicating that the leaf N-P stoichiometry of the plants studied changed and showed weak correlations with biomass indices.

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[2] . [J]. Chin Bull Bot, 1994, 11(专辑): 13 .
[3] Xiaomin Yu;Xingguo Lan;Yuhua Li. The Ub/26S Proteasome Pathway and Self-incompatible Responses in Flowering Plants[J]. Chin Bull Bot, 2006, 23(2): 197 -206 .
[4] WANG Ling-Li LIU Wen-Zhe. Contents of Camptothecin in Camptotheca acuminata from Different Provenances[J]. Chin Bull Bot, 2005, 22(05): 584 -589 .
[5] Dai Yun-ling and Xu Chun-hui. Advances in Research on Protein Components of Oxygen-evolving Complex[J]. Chin Bull Bot, 1992, 9(03): 1 -16 .
[6] . Advances in Research on Photosynthesis of Submerged Macrophytes[J]. Chin Bull Bot, 2005, 22(增刊): 128 -138 .
[7] Shaobin Zhang;Guoqin Liu. Research Advances in Plant Actin Isoforms[J]. Chin Bull Bot, 2006, 23(3): 242 -248 .
[8] BU Ren-Cang, CHANG Yu, HU Yuan-Man, LI Xiu-Zhen, HE Hong-Shi. SENSITIVITY OF CONIFEROUS TREES TO ENVIRONMENTAL FACTORS AT DIFFERENT SCALES IN THE SMALL XING’AN MOUNTAINS, CHINA[J]. Chin J Plan Ecolo, 2008, 32(1): 80 -87 .
[9] MA Li-Hui, WU Pu-Te, and WANG You-Ke. Spatial pattern of root systems of dense jujube plantation with jujube age in the semiarid loess hilly region of China[J]. Chin J Plan Ecolo, 2012, 36(4): 292 -301 .
[10] PAN Yu-De, Melillo J. M., Kicklighter D. W., XIAO Xiang-Ming, McGuire A. D.. Modeling Structural and Functional Responses of Terrestria Ecosystems in China to Changes in Climate and Atmospheric CO2[J]. Chin J Plan Ecolo, 2001, 25(2): 175 -189 .