| 不同水分条件对毛乌素沙地油蒿幼苗生长和形态的影响 |
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| 引用本文： | 肖春旺,周广胜,赵景柱. 不同水分条件对毛乌素沙地油蒿幼苗生长和形态的影响[J]. 生态学报, 2001, 21(12): 2136-2140 |
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| 作者姓名： | 肖春旺 周广胜 赵景柱 |
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| 作者单位： | [1]另科学院植物研究所植被数量生态学开放研究实验室，北京100093 [2]另科学院植物研究所植被数量生态学开放研究实 |
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| 基金项目： | 国家重点基础研究专项经费(G1999043407),中国科学院知识创新面目(KSCX2-1-07)和国家自然科学基金委重点项目(79930800)资助. |
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| 摘 要： | 选择毛乌素沙地优势半灌木油蒿为研究对象，人为控制4种施水量水平来观察油蒿幼苗的生长和形态对全球降水量变化的响应。结果表明，不同施水量显著影响了幼苗生物量及其分配，枝叶形态和细根分布。随着施水量的增加，幼苗生物量、株高、总枝数和长度、总叶片数、总叶面积、比叶面积和细根长逐渐增大，而生物量根冠比、硬叶特征和叶肉质化程度逐渐减小。
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| 关 键 词： | 施水量 毛乌素沙地 油蒿幼苗 生长 形态 水分条件 |
| 文章编号： | 1000-0933(2001)12-2136-05 |
| 收稿时间： | 2000-09-28 |
| 修稿时间： | 2001-08-10 |
Effect of different water conditions on growth and morphology of Artemisia ordosica Krasch.seedlings in Maowusu sandland |
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| XIAO Chunwang,ZHOU Guangsheng and ZHAO Jingzhu. Effect of different water conditions on growth and morphology of Artemisia ordosica Krasch.seedlings in Maowusu sandland[J]. Acta Ecologica Sinica, 2001, 21(12): 2136-2140 |
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| Authors: | XIAO Chunwang ZHOU Guangsheng ZHAO Jingzhu |
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| Affiliation: | Department of Systems Ecology; Research Center For Eco-Environmental Sciences CAS; Beijing; |
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| Abstract: | Response of growth and morphology of seedlings of %Artemisia ordosica% Krasch.,a dominant shrub in Maowusu snadland,to the global precipitation change was studied by observing its response to four artificially controlled water supply levels.The results show that different levels of water supply significantly affected biomass and its distribution of different organs,branch morphology and leaf and fine root distribution of the seedlings.Whith the increase of water supply,the biomass,tree height,total branch number and length,total leaf number and area,specific leaf area and fine root length increased,and root/shoot biomass,sclerophyllous characters and leaf succulence degree decreased. |
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| Keywords: | water supply maowusu sandland Artemisia ordosica Krasch growth morphology |
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