Seed Germination Characteristics of 48 Common Plant Species of Degraded Alpine Meadow in Yellow River Headwater Area

doi:10.11733/j.issn.1007-0435.2015.04.012

Acta Agrestia Sinica ›› 2015, Vol. 23 ›› Issue (4): 744-751.DOI: 10.11733/j.issn.1007-0435.2015.04.012

Previous Articles Next Articles

Seed Germination Characteristics of 48 Common Plant Species of Degraded Alpine Meadow in Yellow River Headwater Area

REN Guo-hua¹, DENG Bin², WANG Yan-long³, HOU Yuan²

1. College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province 030801, China;
2. The State Key Laboratory of Grassland Agroecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, Gansu Province 730000, China;
3. Qinghai Academy of Animal and Veterinary Sciences, Xining, Qinghai Province 810016, China

Received:2014-12-02 Revised:2015-04-09 Online:2015-08-15 Published:2015-08-26

黄河源区退化高寒草甸48种常见植物种子萌发特性及其生态意义

任国华¹, 邓斌², 王彦龙³, 后源²

1. 山西农业大学动物科技学院, 山西太谷 030801;
2. 草地农业生态系统国家重点实验室兰州大学草地农业科技学院, 甘肃兰州 730020;
3. 青海省畜牧兽医科学院, 青海西宁 810016

通讯作者: 任国华
作者简介:任国华(1983-),男,黑龙江鹤岗人,博士,讲师,主要从事草地生态学的教学与研究工作,E-mail:rengh07@126.com
基金资助:
国家自然科学基金(41171417);山西农业大学科技创新基金(2014014)资助

Abstract

Abstract:

In order to reveal seed germination countermeasures and its ecological significance of species, seed germination characteristics (germination percentage, germination rate, and germination period) of 48 common plant species of degraded alpine meadow in the Headwater area of Yellow River were studied. The main results were that the seed germination percentages of all tested species displayed a bimodal distribution except for one species that could not germinate.The seed germination percentages of 17 species were more than 80%, and that of 14 species was less than 20%. The germination rates of 15 species were less than 1, while the germination rates of 21 species were more than 10. The starting time of germination was less than 5 days for 12 species, while 5 species failed to germinate over 15 days. The germination period was more than 15 days for 6 species, while 30 species had a germination period of less than 10 days. Seed germination rate increased with the increase of seed size (P <0.05). Both germination percentage (P=0.085) and starting time of germination (P=0.093) had a weak positive relationship with seed size. However, no correlation was observed between germination period and seed size. Principal component analysis and clustering analysis divided 48 species into four germination patterns: rapid, intermediate, slow and low germination. The experiment showed that different plant functional groups of the alpine meadow were heterogeneous in their germination strategies. The gramineous species had a higher proportion of rapid germination pattern, whereas sedge species had a higher proportion of slow and low germination patterns. These results showed that the plants of different functional groups had the heterogeneity strategy of survival risk.

Key words: Yellow River Headwater area, Seed size, Germination strategy, Vegetation recovery

摘要：

本文通过对黄河源区退化高寒草甸48种常见植物种子的萌发特性研究,比较了不同功能群植物萌发行为的异质性,旨在揭示不同植物萌发对策的生态适应机制。结果显示:萌发率超过80%的植物有17种,小于20%的有14种,1种植物未萌发;萌发速率在1以下的有15种,大于10的有21种;萌发起始时间小于5 d的有12种,大于15 d的有5种;有6种植物的萌发持续15 d以上,30种植物的萌发在10 d内结束。种子萌发速率与种子大小呈显著负相关(P <0.05),小种子物种有更高萌发率(P=0.085)和更早萌发起始时间(P=0.093)的趋势。48种植物的萌发划分为爆发型、过渡型、缓萌型和低萌型等4种类型,其中禾本科植物以爆发型为主,莎草科则是低萌型和缓萌型占优势,杂类草在几种萌发类型中均有分布,说明不同功能群植物在生存风险分摊上的异质性策略。

关键词: 黄河源区, 种子大小, 萌发策略, 植被恢复

CLC Number:

S812.8

REN Guo-hua, DENG Bin, WANG Yan-long, HOU Yuan. Seed Germination Characteristics of 48 Common Plant Species of Degraded Alpine Meadow in Yellow River Headwater Area[J]. Acta Agrestia Sinica, 2015, 23(4): 744-751.

任国华, 邓斌, 王彦龙, 后源. 黄河源区退化高寒草甸48种常见植物种子萌发特性及其生态意义[J]. 草地学报, 2015, 23(4): 744-751.

0
/ / Recommend

Add to citation manager EndNote|Ris|BibTeX

URL: https://manu40.magtech.com.cn/Jweb_cdxb/EN/10.11733/j.issn.1007-0435.2015.04.012

https://manu40.magtech.com.cn/Jweb_cdxb/EN/Y2015/V23/I4/744

References

[1] Valverde T,Quijas S,López-Villavicencio M,et al. Population dynamics of Mammillaria magnimamma Haworth. (Cactaceae) in a lava-field in central Mexico[J]. Plant Ecology,2004,170(2):167-184
[2] Fenner M,Thompson K. The Ecology of Seeds[M]. Cambridge:Cambridge University Press,2005:145-161
[3] Donohue K,de Casas RR,Burghardt L,et al. Germination, postgermination adaptation, and species ecological ranges[J]. Annual Review of Ecology, Evolution, and Systematics,2010,41(1):293-319
[4] Gross KL,Smith AD. Seed mass and emergence time effects on performance of Panicum dichotomiflorum Michx. across environments[J]. Oecologia,1991,87(2):270-278
[5] Miller T. Effects of emergence time on survival and growth in an early old-field plant community[J]. Oecologia,1987,72(2):272-278
[6] Donohue K, Dom L, Griffith C,et al. The evolutionary ecology of seed germination of Arabidopsis thaliana: Variable natural selection on germination timing[J]. Evolution,2005,59(4):758-770
[7] Venable DL. The evolutionary ecology of seed heteromorphism[J]. The American Naturalist,1985,126(5):577-595
[8] 赵新全,马玉寿,周华坤,等. 三江源区退化草地生态系统恢复与可持续管理[M]. 北京:科学出版社,2011:1-5
[9] 周华坤,赵新全,温军,等. 黄河源区高寒草原的植被退化与土壤退化特征[J]. 草业学报,2012,21(5):1-11
[10] 金生英,严林,马玉寿,等. 三江源区人工草地中小型土壤动物群落特征及季节变化[J]. 草地学报,2014,22(5):854-860
[11] 李媛媛,董世魁,朱磊,等. 青藏高原高寒草甸退化与人工恢复过程中植物群落的繁殖适应对策[J]. 生态学报,2013,33(15):4683-4691
[12] Handel SN,Robinson GR,Parsons WFJ,et al. Restoration of woody plants to capped landfills: root dynamics in an engineered soil[J]. Restoration Ecology,1997,5(2):178-186
[13] 邓斌,任国华,刘志云,等. 封育三年对三种高寒草地群落土壤种子库的影响[J]. 草业学报,2012,21(5):23-31
[14] 张永超,牛得草,韩潼,等. 补播对高寒草甸生产力和植物多样性的影响[J]. 草业学报,2012,21(2):305-309
[15] 尚占环. 江河源区退化高寒草地土壤种子库及其植被更新[D]. 兰州:甘肃农业大学,2006:37-57
[16] 邓自发,谢晓玲,王启基,等. 高寒草甸藏嵩草种群繁殖对策的研究[J]. 应用与环境生物学报,2001,7(4):332-334
[17] Zhang Y F,Zhang D Y. Asexual and sexual reproductive strategies in clonal plants[J]. Frontiers of Biology in China,2007,2(3):256-262
[18] Grime JP,Mason G,Curtis AV,et al. A comparative study of germination characteristics in a local floral[J]. Journal of Ecology,1981(69):1017-1039
[19] 卜海燕,任青吉,徐秀丽,等. 青藏高原东部高寒草甸54种禾本科植物种子的萌发特性[J]. 植物生态学报,2006,30(4):624-632
[20] 王桔红,杜国祯,崔现亮,等. 青藏高原东缘61种常见木本植物种子萌发特性及其与生活史的关联[J]. 植物生态学报,2009,33(1):171-179
[21] 张蕾,张春辉,吕俊平,等. 青藏高原东缘31种常见杂草种子萌发特性及其与种子大小的关系[J]. 生态学杂志,2011,30(10):2115-2121
[22] Araki S. Seed dormancy/germination traits of seven Persicaria species and their implication in soil seed bank strategy[J]. Ecological Research,2000,15(1):33-46
[23] Greenberg CH,Smith LM,Levey DJ. Fruit fate, seed germination and growth of an invasive vine-an experimental test of ‘sit and wait’ strategy[J]. Biological Invasions,2001,3(4):363-372
[24] 崔现亮,王桔红,齐威,等. 青藏高原东缘灌木种子萌发特性研究[J]. 生态学报,2008,28(11):5294-5302
[25] 徐秀丽,齐威,卜海燕,等. 青藏高原高寒草甸40种一年生植物种子的萌发特性研究[J]. 草业学报,2007,16(3):74-80
[26] 王桔红,崔现亮,陈学林,等. 中、旱生植物萌发特性及其与种子大小关系的比较[J]. 植物生态学报,2007,31(6):1037-1045
[27] 张佳宁,刘坤,王桔红. 青藏高原东部植物种子萌发能力与其在群落中相对多度的关系[J]. 植物分类与资源学报, 2013,35(3):317-326
[28] 赵建中,彭敏,刘伟,等. 矮嵩草草甸不同功能群主要植物种生长特征与地表温度的相关性分析[J]. 西北植物学报,2012,32(3):0559-0565
[29] Wang J H,Baskin CC,Cui X L,et al. Effect of phylogeny, life history and habitat correlates on seed germination of 69 arid and semi-arid zone species from northwest China[J]. Evolutionary Ecology,2009,23(6):827-846
[30] 刘会良,宋明方,段士民,等. 古尔班通古特沙漠及周缘52种植物种子的萌发特性与生态意义[J]. 生态学报,2011,31(15):4308-4317
[31] 刘会良,宋明方,段士民,等. 古尔班通古特沙漠南缘32种藜科植物种子萌发策略初探[J]. 中国沙漠,2012,32(2):413-420
[32] Eriksson O. Seed size variation and its effect on germination and seedling performance in the clonal herd Convallaria majalis[J]. Acta Oecologia,1999(20):61-66
[33] Bu H Y,Chen X L,Xu X L,et al. Community-wide germination strategies in an alpine meadow on the eastern Qinghai-Tibet Plateau: phylogenetic and life-history correlates[J]. Plant Ecology,2007,195(1):87-98
[34] Smith CC,Fretwell SD. The optimal balance between size and number of offspring[J]. The American Naturalist,1974,108:499-506
[35] 董全民,赵新全,李世雄,等. 基于高寒草地放牧系统次级生产力的优化放牧强度研究[J]. 草地学报,2014,22(5):919-923
[36] 邓自发,谢晓玲,周兴民,等. 高寒草甸小嵩草种群繁殖生态学研究[J]. 西北植物学报,2002,22(2):344-349

Seed Germination Characteristics of 48 Common Plant Species of Degraded Alpine Meadow in Yellow River Headwater Area

黄河源区退化高寒草甸48种常见植物种子萌发特性及其生态意义

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 6

Recommended Articles

Metrics

Comments

[1]	ZHANG Rui, XU Song-he, REN Guo-hua, LI Yin-feng, ZHANG Tao, BAI Yan-fu, SHANG Zhan-huan. The Seed Size and Shape Characteristics of 66 Plant Species in the Degraded Grassland of “Black Soil Land” in the Source Region of Yellow River [J]. Acta Agrestia Sinica, 2015, 23(6): 1136-1144.
[2]	WANG Yan-long, MA Yu-shou, SHI Jian-jun, DONG Quan-min, WU Hai-yan, SHENG Li, YANG Shi-hai, LI Shi-xiong. Investigation of Biomass and Soil Nutrition of Different Vegetation Type at Alpine Meadow in Yellow River Headwater Area [J]. , 2011, 19(1): 1-6.
[3]	WANG Bing, LIU Guo-bin, XUE Sha, LI Zhan-bin, LI Peng, Liu Xian. Effect of Farmland Abandonment on Soil Enzyme Activities in Loess Hilly Region [J]. , 2009, 17(3): 282-287.
[4]	CAO Guang-min, LONG Rui-jun. The Bottleneck and its Resolutions to the Natural Recovery of Black Soil Type Degraded Grassland in the Three River Source Region [J]. , 2009, 17(1): 4-9.
[5]	ZHU Guang-hua, TAO Ling, REN Jun. Evaluation of Using Land for Constructing Qinghai-Tibet Railway on Native Vegetation [J]. , 2006, 14(2): 160-164,180.
[6]	ZHANG Zi-he. Conservation and Recovery of the Grassland Vegetation Along China’s Qinghai-Tibet Railway Construction Site [J]. , 2003, 11(3): 246-250,255.