全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
草地学报  2015 

氮素添加对黄土高原典型草原植物比叶面积及其重要值的影响

DOI: 10.11733/j.issn.1007-0435.2015.01.011, PP. 69-74

Keywords: 黄土高原,典型草原,氮沉降,比叶面积,重要值

Full-Text   Cite this paper   Add to My Lib

Abstract:

为了解氮素沉降对草地群落植物生长策略和群落组成的影响,通过长期(2009—2012年)氮素添加野外控制试验,研究了黄土高原天然草地禾本科植物长芒草(Stipabungeana)、赖草(Leymussecalinus),豆科植物达乌里胡枝子(Lespedezadavurica)以及菊科植物阿尔泰狗哇花(Heteropappusaltaicus)4种植物在不同施氮水平下叶片比叶面积(SLA)和物种重要值(IV)的变化特征,并探讨了氮素添加对各种植物叶片SLA和物种重要值影响的内在联系.结果显示沿施氮水平,禾草科植物长芒草和赖草叶片SLA增加幅度较小、物种重要值整体上呈现逐渐增加的趋势,非禾草科植物阿尔泰狗娃花和达乌里胡枝子叶片SLA增加幅度较大,物种重要值整体上呈降低的趋势,施氮对禾草科植物更有利;各物种的重要值与叶片SLA之间无相关关系;物种重要值随着氮素添加量增加所产生的变异系数与该物种在群落中的重要值大小成显著负相关.表明在干旱贫瘠环境中,植物叶片SLA保守性强、可塑性低;氮素沉降对禾草科植物更有利.

References

[1]  康敏明,张奇平,杜瞡,等. 浙江天童受损常绿阔叶林实验生态学研究(Ⅵ):不同干扰下植被恢复初期主要优势种叶性状及其生态适应[J]. 华东师范大学学报,2010(3):26-37
[2]  胡文祥,李伟,杜国祯. 基于物种性状的两种高寒草甸优势牧草对施肥的响应[J]. 兰州大学学报,2011,6(47):68-74
[3]  Li X D, Fu H, Li X D, et al. Effects of land-use regimes on carbon sequestration in the Loess Plateau, northern China [J]. New Zealand Journal of Agricultural Research,2008,51(1):45-52
[4]  任继周. 草业科学研究方法[M]. 北京:中国农业出版社,1998:15-16
[5]  Lv X T, Han X G. Nutrient resorption responses to water and nitrogen amendment in semi-arid grassland of Inner Mongolia, China [J]. Plant and Soil,2010,326(1/2):481-491
[6]  Poorter H, Niinemets V, Poorter L, et al. Causes and consequences of variation in leaf mass per area (LMA): A meta-analysis [J]. New Phytologist,2009,182(3):565-588
[7]  黄菊英,余海龙,袁志友,等. 长期 N 添加对典型草原几个物种叶片性状的影响[J]. 生态学报,2012,32(5):1419-1427
[8]  An H, Shangguan Z P. Specific leaf area, leaf nitrogen content, and photosynthetic acclimation of Trifolium repens L. seedlings grown at different irradiances and nitrogen concentrations [J]. Photosynthetica,2008,46(1):143-147
[9]  Schieving F, Poorter H. Carbon gain in a multispecies canopy: The role of specific leaf area and photosynthetic nitrogen-use efficiency in the tragedy of the commons [J]. New Phytologist,1999,143 (1):201-211
[10]  户桂敏,王文天,彭少麟. 不同氮磷比下入侵种五爪金龙和本地种鸭脚木的竞争表现[J]. 生态环境学报,2009,18(4):1449-1454
[11]  万宏伟,杨阳,白世勤,等. 羊草草原群落6种植物叶片功能特性对氮素添加的响应[J]. 植物生态学报,2008,32(3):611-621
[12]  Maziane D, Shipley B. Interacting components of inter-specific relative growth rate: Constancy and change under differing conditions of light and nutrient supply [J]. Functional Ecology,1996,13(5):611-622
[13]  沈振西,陈佐忠,周兴民,等. 高施氮量对高寒矮嵩草甸主要类群和多样性及质量的影响[J]. 草地学报,2003,10(1):7-17
[14]  汪建华,周先容,尚进,等. 金佛山巴山榧树灌丛群落主要木本植物种群生态位特征[J]. 生态学杂志,2014,33(5):1135-1141
[15]  Galloway J N, Dentener F J, Capone D G, et al. Nitrogen cycles: Past, present and future [J]. Biogeochemistry,2004,70(2):153-226
[16]  Holland E A, Dentene F J, Braswell B H. Contemporary and Pre-Industrial Global Reactive Nitrogen Budgets [J]. Biogeochemistry,1999,46(1/3):7-43
[17]  Hooper D U, Johnson L. Nitrogen limitation in dryland ecosystems: Response to geographical and temporal variation in precipitation [J]. Biogeochemistry,1999,46:247-293
[18]  Lebauer D S, Treseder K K. Nitrogen limitation of net primary productivity in terrestrial ecosystems is globally distributed [J]. Ecology,2008,89(2):371-379
[19]  Brooks M L. Effects of increased soil nitrogen on the dominance of alien annual plants in the Mojave Desert [J]. Journal of Applied Ecology,2003,40(2):344-353
[20]  安卓,牛得草,文海燕,等. 氮素添加对黄土高原典型草原长芒草氮磷重吸收率及C:N:P化学计量特征的影响[J]. 植物生态学报,2011,35(8):801-807
[21]  Bobbink R, Hornung M, Roelofs J G M. The effects of air-borne nitrogen pollutants on species diversity in natural and semi-natural European vegetation [J]. Journal of Ecology,1998,86(5):717-738
[22]  黄菊莹,袁志友,李凌浩. 羊草绿叶氮、磷浓度和比叶面积沿氮、磷和水分梯度的变化[J]. 植物生态学报,2009,33(3):442-448
[23]  韦兰英,上官周平. 黄土高原不同退耕年限坡地植物比叶面积与养分含量的关系[J]. 生态学报,2008,6(28):2526-2535
[24]  宝乐,刘艳红. 东灵山地区不同森林群落叶功能性状比较[J]. 生态学报,2009,29(7):3692-3703
[25]  龚时慧,温仲明,施宇. 延河流域植物群落功能性状对环境梯度的响应[J]. 生态学报,2011,31(20):6088-6097
[26]  李玉霖,崔建垣,苏永中. 不同沙丘生境主要植物比叶面积和叶干物质含量的比较[J]. 生态学报,2005,25(2):304-311
[27]  黄菊英. 典型草原优势植物养分回收特性对养分和水分梯度变化的响应[D]. 北京:中国科学院植物研究所,2008
[28]  李轩然,刘琪璟,蔡哲,等. 千烟州针叶林的比叶面积与叶面积指数[J]. 植物生态学报,2007,31(1):93-101
[29]  齐威,郭淑青,崔现亮,等. 青藏高原东部4科植物种子大小和比叶面积随海拔和生境的变异[J]. 草业学报,2012,21(6):42-50
[30]  Ma W L, Shi P L, Li W H, et al. The change of individual plant traits and biomass allocation in alpine meadow with elevation variation on the Qinghai-Tibetan Plateau [J]. Science in China Life Sciences,2010,53(9):1142-1151
[31]  Scheepens J F, Frei E S, St?cklin J. Genotypic and environmental variation in specific leaf area in a widespread Alpine plant after transplantation to different altitudes [J]. Oecologia,2010,164(1):141-150
[32]  Olff H. Effects of Light and Nutrient Availability on Dry Matter and N Allocation in Six Successional Grassland Species. Testing for Resource Ratio Effects [J]. Oecologia,1992,3(89):412-421
[33]  Knops J M H, Reinhart K. Specific leaf area along a nitrogen fertilization gradient [J]. American Midland Naturalist,2000,144(2):265-272

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133