模拟增温对短穗兔耳草生长特征的影响
Effect of Simulated Warming on the Growth Characteristic of Lagotis Brachystachya
查看参考文献15篇
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文摘
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[目的]探讨短穗兔耳草个体对模拟增温的响应。[方法]采用国际冻原计划（ITEX）模拟增温对植物影响的研究方法,将温棚从小到大的顺序依次设为A、B、C、D、E5个温度梯度,分析不同温度梯度下短穗兔耳草个体生长特征的变化,研究模拟增温对短穗兔耳草生长特征的影响。[结果]随着温棚直径的减小,温度（地表温度和土壤温长）逐渐升高。与对照相比,A、B、C、D、E5个处理分别提高了2.68、1.57、1.20、1.07和0.69℃（地表气温）,1.74、1.06、0.80、0.60和0.30℃（土壤温度）。短穗兔耳草从对照至A温室随着温度的升高,叶片数、叶片高度逐渐增加,而匍匐茎逐渐减少。[结论]叶片数变化与温度（地表温度和地温）呈正相关关系,增温促进了短穗兔耳草的营养生长,抑制了它的克隆繁殖能力。 |
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其他语种文摘
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[Objective] The purpose was to discuss the response of Lagotis brachystachya individual to simulated warming.[Method] With the research method of the influence of simulated warming on plant in International Tundra Experiment（ITEX）,according to the glasshouse sizes,the glasshouses were designed from the small to the big as 5 temperature grads of A,B,C,D and E,so as to analyze the growth characteristic change of L.brachystachya individual and study the effect of simulated warming on the growth characteristic of L.brachystachya.[Result] The temperature（surface and soil temperature） increased gradually as long as the glasshouse diameter reduced.Compared with the control,the temperatures in 5 treatments of A,B,C,D,E was increased by 2.68,1.57,1.20,1.07 and 0.69 ℃（surface temperature） and 1.74,1.06,0.80,0.60 and 0.30 ℃（soil temperature） resp.The leaf number and leaf height of L.brachystachya increased gradually,but the stolons decreased gradually with the increment of temperature in the glasshouses from CK toA.[Conclusion] The change of leaf number showed positive correlation with the temperature（surface and soil temperature）.Warming promoted the vegetative growth of L.brachystachya,but restrained its propagation ability of clone. |
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来源
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安徽农业科学
,2007,35(36):11826-11828 【扩展库】
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关键词
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短穗兔耳草
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模拟增温
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生长特征
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地址
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1.
中国科学院西北高原生物研究所, 青海, 西宁, 810008
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青海省草原总站, 青海, 西宁, 810008
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0517-6611 |
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学科
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植物学 |
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基金
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国家“十五”科技攻关重大项目
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文献收藏号
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CSCD:3115103
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参考文献 共
15
共1页
|
|
1.
孙鸿烈.
青藏高原形成演化与发展,1998
|
被引
70
次
|
|
|
|
|
2.
JACKDON R B. CO2 alters water use,carbon gain,and yield for the dominant species in a natural grassland.
Oecologica,1994,98:257-262
|
被引
1
次
|
|
|
|
|
3.
VITOUSEK P M. Beyond global warming:ecology and global change.
Ecology,1994,75:1861-1876
|
被引
143
次
|
|
|
|
|
4.
GRABHERR G. Climate effects on mountain plants.
Nature,1994,369:448-450
|
被引
73
次
|
|
|
|
|
5.
KORNER C H. Response of alpine vegetation to global climate change.
Internation community conference on landscape ecological impact of climate change,1992:85-96
|
被引
1
次
|
|
|
|
|
6.
CHAPIN F S. Arctic plant physiological ecology in an ecosystem context.
Arctic ecosystems in a changing climate:an ecophysiological perspective,1992:441-452
|
被引
5
次
|
|
|
|
|
7.
周华坤. 模拟增温效应对矮嵩草草甸影响的初步研究.
植物生态学报,2000,24(5):547-553
|
被引
87
次
|
|
|
|
|
8.
李英年. 5年模拟增温后矮蒿草草甸群落结构及生产量的变化.
草地学报,2004,12(3):236-239
|
被引
67
次
|
|
|
|
|
9.
赵建中. 模拟增温效应对矮嵩草生长特征的影响.
西北植物学报,2006,26(12):2533-2539
|
被引
16
次
|
|
|
|
|
10.
准虎银. 不同海拔高度短穗兔耳草克隆生长及克隆繁殖特征.
应用与环境生物学报,2005,11(1):18-22
|
被引
1
次
|
|
|
|
|
11.
刘伟. 不同程度退化草地生物量的分布模式.
中国草地,2005,27(2):9-15
|
被引
51
次
|
|
|
|
|
12.
周兴民.
中国嵩草草甸,2001:2
|
被引
1
次
|
|
|
|
|
13.
CALLAGHAN T V. Arctic terrestrial ecosystems and environmental change.
PHilosophical Transactions of the Royal Society of London,1995,352:259-276
|
被引
2
次
|
|
|
|
|
14.
准虎银. 短穗兔耳草基株大小对其克隆生长特征的影响.
生态科学,2006,25(4):294-298
|
被引
1
次
|
|
|
|
|
15.
周华坤. 短穗兔耳草的克隆生长特征.
草业科学,2006,23(12):60-64
|
被引
10
次
|
|
|
|
|
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