Scaling from leaf to whole plant in biomass and nitrogen content of Nitraria tangutorum seedlings
-
摘要:
目的 植物生物量和营养的分配模式是植物对生态系统中物质和能量循环的一种演变策略，其资源分配给不同构件的模式是其生物学特性的一个基本方面。本文目的为解决野外调查工作中植物整体生物量与养分含量难以测定等问题。 方法以乌兰布和沙漠东北部唐古特白刺幼苗为研究对象，将其分为根、茎、叶3个主要组成部分，通过对这3个主要组成构件生物量的测定与拟合分析，以叶器官为变量，建立了白刺全株生物量的预测模型，并通过进一步测定其各部位氮含量，建立了其全株氮含量的预测模型，得出了白刺叶与全株不同尺度之间生物量与氮含量的缩放关系，探讨了白刺全株生物量与全株氮含量之间的相关关系。 结果结果表明：以叶生物量对数转换值为自变量能够很好的拟合出根(R2=0.901 2，P < 0.001)和茎(R2=0.926 4，P < 0.001)的生物量；以叶氮含量为自变量也能够较好的拟合出根(R2=0.850 1，P < 0.001)和茎(R2=0.844 7，P < 0.001)的氮含量，进而得出以叶器官生物量为自变量的全株生物量预测模型：Mp=ML+100.020 9 ML0.845 6+100.436 9 ML0.867 8，以及以叶器官生物量与氮含量为自变量的全株氮含量预测模型：Np=MLNL+100.020 9ML0.845 6(0.109 4NL+0.015 6)+100.436 9ML0.867 8(0.108 8NL+0.014 8)，并经实测数据验证，白刺全株生物量与全株氮含量之间的相关关系可表达为：lgN′p=1.075 2lgM′p- 1.768 4。 结论白刺通过某一构件的生物量与氮含量能够较好的预测出其全株生物量与全株氮含量之间的相关关系。 Abstract:ObjectiveThe relationship between the evolved strategies of plant species and the material and energy cycles of ecosystems is linked by plant biomass and nutrient allocation, and the pattern of plant resources allocated to its different components is a fundamental aspect of its biological characteristics. In this paper, the scaling from components to whole plant in biomass and nitrogen content of Nitraria tangutorum seedlings was researched in the northeast of Ulan Buh Desert, Inner Mongolia of northern China. MethodFirstly, we measured the biomass of root, stem and leaf of Nitraria tangutorum, individually, and we converted them into a value of logarithm (base 10) to get the linear fitting equation of the stem biomass or root biomass taking leaf biomass as variable. Then we measured the nitrogen concentration of each component, also, we linearly fitted the nitrogen concentration of the leaf and the stem or root for further study. ResultThe results showed that the biomass of stem and root could be predicted accurately by giving the leaf biomass (R2 of root-leaf and stem-leaf regression equations were 0.901 2 and 0.926 4, respectively). And the nitrogen concentration of root and stem also could be predicated well by giving the leaf nitrogen concentration too (R2 of root-leaf and stem-leaf regression equations was 0.850 1 and 0.844 7, respectively). Then we obtained the prediction model of the whole plant biomass by adding the three parts of plant: Mp=ML+100.020 9ML0.845 6+100.436 9ML0.867 8, and we inferred the nitrogen content predicting model of whole plant by adding the three parts together similarly: Np =MLNL+100.020 9ML0.845 6 (0.109 4NL+0.015 6)+100.436 9ML0.867 8 (0.108 8NL+0.014 8). And through the field data verifying, it was showed that the relationship between the biomass and nitrogen content of whole plant could be predicted by the biomass and nitrogen concentration of Nitraria tangutorum leaves:lgN′p =1.075 2lgM′p-1.768 4. ConclusionIt was showed that the biomass and nitrogen content of the whole plant of Nitraria tangutorum can be predicted by its components. -
Key words:
- allometry /
- ecological stoichiometry /
- biomass /
- nitrogen content /
- Nitraria tangutorum
-
图 1 白刺根、茎生物量与叶片生物量的异速生长关系
Figure 1. Allometry relationship between root, stem biomass and leaf biomass of Nitraria tangutorum
图 2 白刺全株生物量与叶片生物量间的模拟曲线与验证曲线
Figure 2. Simulating and verifying curves between whole plant biomass and leaf biomass of Nitraria tangutorum
图 3 白刺根、茎氮含量与叶氮含量间的线性拟合关系
Figure 3. Linear fitting relations between N concent of root, stem and that of leaf for Nitraria tangutorum
-
[1] Kerkhoff A J, Fagan W F, Elser J J, et al. Phylogenetic and growth form variation in the scaling of nitrogen and phosphorus in the seed plants[J]. The American Naturalist, 2006, 168(4): E103-E122. doi: 10.1086/507879 [2] Klinkhamer P G L, Meelis E, DeJong T J, et al. On the analysis of size-dependent reproductive output in plants[J]. Functional Ecology, 1992, 6(3): 308-316. doi: 10.2307/2389522 [3] Enquist B J, Niklas K J. Global allocation rules for patterns of biomass partitioning in seed plants[J]. Science, 2002, 295(5559): 1517-1520. doi: 10.1126/science.1066360 [4] Niu K C, Choler P, Zhao B B, et al. The allometry of reproductive biomass in response to land use in Tibetan alpine grasslands[J]. Functional Ecology, 2009, 23(2): 274-283. doi: 10.1111/fec.2009.23.issue-2 [5] Niklas K J. Modelling below-and above-ground biomass for non-woody and woody plants[J]. Annals of Botany, 2004, 95(2): 315-321. doi: 10.1093-aob-mci028/ [6] 程栋梁, 钟全林, 林茂兹, 等.植物代谢速率与个体生物量关系研究进展[J].生态学报, 2011, 31(8): 2312-2320. http://d.old.wanfangdata.com.cn/Periodical/stxb201108030Cheng D L, Zhong Q L, Lin M Z, et al. The advance of allometric studies on plant metabolic rates and biomass[J]. Acta Ecologica Sinica, 2011, 31(8): 2312-2320. http://d.old.wanfangdata.com.cn/Periodical/stxb201108030 [7] Cheng D L, Ma Y Z, Zhong Q L, et al. Allometric scaling relationship between above-and below-ground biomass within and across five woody seedlings[J]. Ecology and Evolution, 2014, 4(20): 3968-3977. doi: 10.1002/ece3.2014.4.issue-20 [8] 李春萍, 李刚, 肖春旺.异速生长关系在陆地生态系统生物量估测中的应用[J].世界科技研究与发展, 2007, 29(2): 51-57. doi: 10.3969/j.issn.1006-6055.2007.02.010Li C P, Li G, Xiao C W. The application of allometric relationships in biomass estimation in terrestrial ecosystems[J]. World SCI-Tech R & D, 2007, 29(2): 51-57. doi: 10.3969/j.issn.1006-6055.2007.02.010 [9] Niklas K J, Owens T, Reich P B, et al. Nitrogen/phosphorus leaf stoichiometry and the scaling of plant growth[J]. Ecology Letters, 2005, 8(6): 636-642. doi: 10.1111/ele.2008.8.issue-6 [10] Elser J J, Fagan W F, Kerkhoff A J, et al. Biological stoichiometry of plant production: metabolism, scaling and ecological response to global change[J]. New Phytologist, 2010, 186(3): 593-608. doi: 10.1111/j.1469-8137.2010.03214.x [11] 李清河, 江泽平.白刺研究[M].北京:中国林业出版社, 2011.Li Q H, Jiang Z P. Research on plant species of genus Nitraria L. [M]. Beijing: China Forestry Publishing House, 2011. [12] 贾宝全, 蔡体久, 高志海, 等.白刺灌丛沙包生物量的预测模型[J].干旱区资源与环境, 2002, 16(1): 96-99. doi: 10.3969/j.issn.1003-7578.2002.01.017Jia B Q, Cai T J, Gao Z H, et al. Biomass forcast models of Nitraria tangutorum shrub in sand dune[J]. Journal of Arid Land Resources and Environment, 2002, 16(1): 96-99. doi: 10.3969/j.issn.1003-7578.2002.01.017 [13] 马全林, 卢琦, 魏林源, 等.干旱荒漠白刺灌丛植被演替过程土壤种子库变化特征[J].生态学报, 2015, 35(7): 2285-2294. http://d.old.wanfangdata.com.cn/Periodical/stxb201507028Ma Q L, Lu Q, Wei L Y, et al. Varying characteristics of soil seed banks during the succession process of Nitraria tangutorum vegetation in an arid desert area[J]. Acta Ecologica Sinica, 2015, 35(7): 2285-2294. http://d.old.wanfangdata.com.cn/Periodical/stxb201507028 [14] 彭飞, 王涛, 刘立超, 等.民勤荒漠绿洲过渡带白刺灌丛沙堆演化阶段及其空间格局[J].中国沙漠, 2012, 32(3):593-599. http://d.old.wanfangdata.com.cn/Periodical/zgsm201203002Peng F, Wang T, Liu L C, et al. Evolution phases and spatial pattern of nebkhas in Minqin Deset-oasis ectone[J]. Journal of Desert Research, 2012, 32(3):593-599. http://d.old.wanfangdata.com.cn/Periodical/zgsm201203002 [15] 张峰, 上官铁梁, 李素珍.关于灌木生物量建模方法的改进[J].生态学杂志, 1993 (6): 67-69. doi: 10.3321/j.issn:1000-4890.1993.06.017Zhang F, Shangguan T L, Li S Z. Improvement on modelling method of biomass of brush[J]. Chinese Journal of Ecology, 1993 (6): 67-69. doi: 10.3321/j.issn:1000-4890.1993.06.017 [16] Bonser S P, Aarssen L W. Interpreting reproductive allometry: individual strategies of allocation explain size-dependent reproduction in plant populations[J]. Perspectives in Plant Ecology, Evolution and Systematics, 2009, 11(1): 31-40. doi: 10.1016/j.ppees.2008.10.003 [17] Poorter H, Niklas K J, Reich P B, et al. Biomass allocation to leaves, stems and roots: meta-analyses of interspecific variation and environmental control[J]. New Phytologist, 2012, 193(1): 30-50. doi: 10.1111/j.1469-8137.2011.03952.x [18] Bai Y F, Han X G, Wu J G, et al. Ecosystem stability and compensatory effects in the Inner Mongolia grassland[J]. Nature, 2004, 431: 181-184. doi: 10.1038/nature02850 [19] 魏小平, 赵长明, 王根轩, 等.民勤荒漠绿洲过渡带优势植物地上和地下生物量的估测模型[J].植物生态学报, 2005, 29(6): 878-883. doi: 10.3321/j.issn:1005-264X.2005.06.002Wei X P, Zhao C M, Wang G X, et al. Estimation of above-and below-ground biomass of dominant desert plant species in an oasis-desert ecotone of Mingqin, China[J]. Acta Phytoecologica Sinica, 2005, 29(6): 878-883. doi: 10.3321/j.issn:1005-264X.2005.06.002 [20] Takashima T, Hikosaka K, Hirose T. Photosynthesis or persistence: nitrogen allocation in leaves of evergreen and deciduous Quercus species[J]. Plant, Cell & Environment, 2004, 27(8): 1047-1054. [21] 郑淑霞, 上官周平.不同功能型植物光合特性及其与叶氮含量、比叶重的关系[J].生态学报, 2007, 27(1): 171-181. doi: 10.3321/j.issn:1000-0933.2007.01.020Zheng S X, Shangguan Z P. Photosynthetic characteristics and their relationships with leaf nitrogen content and leaf mass per area in different plant functional types[J]. Acta Phytoecologica Sinica, 2007, 27(1): 171-181. doi: 10.3321/j.issn:1000-0933.2007.01.020 [22] 何炎红, 田有亮, 叶冬梅, 等.白刺地上生物量关系模型及其与叶面积关系的研究[J].中国沙漠, 2005, 25(4): 541-546. doi: 10.3321/j.issn:1000-694X.2005.04.015He Y H, Tian Y L, Ye D M, et al. Model of aboveground biomass of Nitraria tangutorum and relationship between biomass and leaf area[J]. Journal of Desert Research, 2005, 25(4): 541-546. doi: 10.3321/j.issn:1000-694X.2005.04.015 [23] Niklas K J, Enquist B J. Canonical rules for plant organ biomass partitioning and annual allocation[J]. American Journal of Botany, 2002, 89(5):812-819. doi: 10.3732/ajb.89.5.812 -
下载:
点击查看大图
图(4)
计量
- 文章访问数: 1340
- HTML全文浏览量: 255
- PDF下载量: 61
- 被引次数: 0
