吕梁山区几种乔灌草植物的化学计量特征
作者:
基金项目:

中国科学院战略先导专项"暖温带落叶阔叶混交林区域山西中部森林固碳现状、速率和潜力研究"(XDAO5050203-04-01)


Stoichiometric Characteristics of Several Plants of Arbor, Shrub and Grass in Lüliang Mountainous Region
Author:
  • 摘要
  • | |
  • 访问统计
  • |
  • 参考文献 [20]
  • |
  • 相似文献
  • | | |
  • 文章评论
    摘要:

    对元素的计量特征正确的解读能够促进人们对生态系统内C,N,P循环规律的理解。通过样地调查和样品采集,测定了吕梁山区几种乔灌草植物以及枯枝落叶的碳、氮、磷含量,系统分析了几种元素的计量规律。结果表明,相同树种不同器官的相同元素含量存在差异性,不同树种相同器官的相同元素含量存在差异性,说明植物的遗传特性和各器官不同的功能决定着元素计量的差异性;灌木各器官的相同元素存在极显著相关(p<0.01),说明植物体各器官作为一个整体共同作用决定着元素的计量特征,草本与灌木计量特征相似;C,N,P,C/N,C/P,N/P与地区的环境因素相关:坡度与C含量和N/P存在极显著负相关(p<0.01),郁闭度仅与C/P存在显著相关(p<0.05),海拔因素只与N/P不存在显著相关,说明环境与植物体的能量和物质流动影响着元素的计量特征。

    Abstract:

    The correct interpretation of stoichiometric characteristics can promote the understanding of C, N, P circulating law within the ecosystem. Through sample plot survey and sample collection, the C, N and P content of several arbor, shrub, grass and litter were determined, and the element stoichiometric characteristics of several plants were systematically analyzed in Lüliang mountainous region. The results showed there were differences between the same element content of different organs of the same species, and also between the same element content of same organ of the different species. It indicated that the plant genetic characteristics and different function of organs determines the difference of stoichiometry. The same element of shrub's organs were significantly correlated, indicating that organs of plant individual decided collectively the stoichiometry. The stoichiometry of grasses was similar to shrubs. C, N, P content and the C/N, C/P, N/P radio were significantly related to local environmental factors. Slope had a significantly negative relation on the content of C and N/P. Crown density was only significantly correlated to C/P ratio, and altitude factor was significantly correlated to all measurement indexes except of N/P, indicating that environment, energy and material flows of plant had an influence on stoichiometry.

    参考文献
    [1] 王绍强,于贵瑞.生态系统碳氮磷元素的生态化学计量学特征[J].生态学报,2008,28(8):3937-3947.
    [2] Marschner H. Mineral Nutrition of Higher Plants[M]. New York:Academic Press, 1995.
    [3] 罗玉珠,曾太.高寒嵩草草甸植物群落生态化学计量特征研究[J].中国草地学报,2013,35(3):92-96.
    [4] 曾德慧,陈广生.生态化学计量学:复杂生命系统奥秘的探索[J].植物生态学报,2005,29(6):1007-1019.
    [5] Lambers H, Chapin F S, Pons T L. Plant Physiological Ecology[M]. New York:Springer-Verlag, 1998.
    [6] Sterner R W, Elser J J. Ecological Stoichiometry:The Biology of Elements from Molecules to the Biosphere[M]. Princeton:Princeton University Press, 2002.
    [7] Chen Fusheng, Niklas K J, Zeng Dehui.Important foliar traits depend on species-grouping:Analysis of a remnant temperate forest at the Keerqin Sandy Lands, China[J]. Plant Soil, 2011,340(1):337-345.
    [8] Redfield A C. The biological control of chemical factors in the environment[J]. American Journal of Sciences, 1958,46:205-222.
    [9] 韩文轩,吴漪.北京及周边地区植物叶的碳氮磷元素计量特征[J].北京大学学报:自然科学版,2008.45(5):855-860.
    [10] 王斌瑞,王百田.黄土高原径流林业[M].北京:中国林业出版社,1995.
    [11] Zheng Shuxia, Shangguan Zhouping. Spatial patterns of leaf nutrient traits of the plants in the Loess Plateau of China[J]. Trees, 2007,191(2):279-293.
    [12] 彭少麟,张祝平.鼎湖山地带性植被生物量、生产力和光能利用效率[J].中国科学:B辑,1994,24(5):497-502.
    [13] Chapin Ⅲ S F, Chapin M C, Matson P A, et al. Principles of terrestrial ecosystem ecology[M]. Springer-Verlag, New York, 2002.
    [14] Cordell S, Gold stein G, Meinzer F C, et al. Morphological and physiological adjustment to N and P fertilization in nutrient-limited Metrosideros poly morphan canopy trees in Hawaii[J]. Tree Physiology, 2001,21(1):43-50.
    [15] Cordell S, Goldstein G, Meinzer F C, et al. Regulation of life-span and nutrient-use efficiency of Metrosideros poly morpha trees at two extremes of a long chrono sequence[J]. Oecologia, 2001,127(2):198-206.
    [16] Giardina C P, Ryan M G. Biogeochemistry:Soil warming and organic carbon content-reply[J]. Nature, 2000,408(6814):789-790.
    [17] Grace J, Rayment M. Respiration in the balance[J]. Nature, 2000,404(6780):819-820.
    [18] Hobbie S E, Nadel hoffer K J, Hgberg P. Asynthesis:the role of nutrients as constraints on carbon balances in boreal and arctic regions[J]. Plant and Soil, 2002,242(1):163-170.
    [19] 梁文俊,丁国栋.冀北山地油松和落叶松林下枯落物的水文效应[J].水土保持通报,2012,32(4):71-74.
    [20] 张增信,闵俊杰.苏南丘陵森林枯落物含水量及其影响因素分析[J].水土保持通报,2011,31(1):6-10.
    相似文献
    引证文献
    网友评论
    网友评论
    分享到微博
    发 布
引用本文

曹远博,王百田,魏婷婷,迟璐,陈志豪.吕梁山区几种乔灌草植物的化学计量特征[J].水土保持通报,2014,(5):290-294

复制
分享
文章指标
  • 点击次数:935
  • 下载次数: 1432
  • HTML阅读次数: 0
  • 引用次数: 0
历史
  • 收稿日期:2013-09-15
  • 最后修改日期:2013-11-18
  • 在线发布日期: 2016-04-05