[1]李甜江,李根前ˇ,贺 斌,等.中国沙棘种群分株克隆生长型动态研究[J].西北林学院学报,2008,23(02):69.
 LI Tianjiang,LI Genqian,HE Bin,et al.Dynamics on the Clonal Growth of Ramets of Hippophae rhamniodes L. subsp sinensis Population[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2008,23(02):69.
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中国沙棘种群分株克隆生长型动态研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第23卷
期数:
2008年02期
页码:
69
栏目:
出版日期:
2008-03-05

文章信息/Info

Title:
Dynamics on the Clonal Growth of Ramets of Hippophae rhamniodes L. subsp sinensis Population
作者:
李甜江 1 李根前 1 贺 斌 1 韦 宇 1 李秀寨 1
1.西南林学院,云南 昆明 65022; 2.西北农林科技大学,陕西 杨陵 712100
Author(s):
LI Tianˉjiang 1 LI Genˉqian 1HE Bin 1 WEI Yu 1 LI Xiuˉzhai 1
1. Southwest Forestry College, Kunming,Yunnan 650224,China; 2. Northwest A&F University, Yangling, Shaanxi 712100, China
关键词:
中国沙棘合轴型分株单轴型分株时间动态
Keywords:
Hippophae rhamniodes L.subsp sinensisramet with single axes ramet with complex axes time dynamics
分类号:
S793.6
文献标志码:
A
摘要:
中国沙棘分株克隆生长型可分为单轴型及合轴型2种,它们在种群中的数量和比 例变化具 有生态适应意义。为了探讨克隆生长型随种群年龄增长的变化规律,采用“空间差异代 替时间变化 法”和“样地编年序列法”分析了克隆生长型的时间动态。结果表明,通过分株及其分 蘖的出生与死 亡调节,中国沙棘不断改变分株的克隆生长型。在种群增长和稳定阶段,分株以合轴型 为主;在种 群衰退阶段,分株以单轴型为主;在林窗更新阶段,分株又以合轴型为主。分株克隆生长 型的这种 循环变化过程,是中国沙棘有效利用环境资源和维持种群稳定性的对策之一
Abstract:
Ramets in the population of Hippophae rhamniodes L. subsp sin ensis can be classified by single axes and complex axes, the differences of numbers and proportion o f them within a population reflex some ecological adaptation significances. In order to understand the tra nsformation laws of clonal growth form with the increase of population age, the time dynamic of clonal g rowth form was studied by using the method of spatial series substitution for time series and plots ar ranged with age. The results showed that the clonal growth form changed continuously by the birth and death regulation of daughter ramet and tillˉ er. At the stage of population increase and population stabilization, the population was dominated by the ramets with complex axis. At the stage of population decrease, th e population was dominated by the raˉ mets with single axis. And at the stage of gap regeneration, the p opulation again was dominated by the raˉ mets with complex axis. Such a periodical transformation of clonal g rowth form is one of the strategies to make full use of environmental resources and maintain the stabili ty of clonal population.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2007ˉ06ˉ25 修回日期:2007ˉ10ˉ18 基金项目:国家自然科学基金项目(30 371193);云南省学术与技术带头人基金项目(2005PY01ˉ20);西南地区生物多样性保育国 家林业局重点实验室基金项目。 作者简介:李甜江(1978ˉ),女,云南普洱人,硕士,主 要从事森林生态学研究。ˇ通讯作者:李根前(1960ˉ),男,陕西渭南人,教授,博士生导 师,主要从事森林培育学研究。
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