| 中国沙棘克隆生长格局对不同灌水强度的响应 |
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| 引用本文： | 徐德兵,赵粉侠,贺斌,李甜江,段宗亮,李根前. 中国沙棘克隆生长格局对不同灌水强度的响应[J]. 东北林业大学学报, 2008, 36(9) |
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| 作者姓名： | 徐德兵 赵粉侠 贺斌 李甜江 段宗亮 李根前 |
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| 作者单位： | 1. 西南林学院,昆明,650224
2. 西北农林科技大学 |
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| 基金项目： | 国家自然科学基金，云南省学术与技术带头人专项计划项目，西南地区生物多样性保育国家林业局重点实验室基金 |
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| 摘 要： | 为了探讨克隆生长调节对策和寻找最佳灌水强度,对中国沙棘种群在不同灌水强度条件下的克隆生长格局进行了对比研究。结果表明,随着灌水强度的增加,子株数量(密度)、一级萌蘖根茎、萌蘖根总长度、萌蘖根条数以及萌蘖根分枝级数均表现为二次抛物线(先增后减)变化,种群生长格局呈现出"游击型"→"集团型"→"游击型"。
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| 关 键 词： | 中国沙棘 灌水强度 克隆生长格局 可塑性 |
Response of Clonal Growth Pattern of Hippophae rhamniodes L. subsp, sinensis to Different Irrigation Intensities |
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| Xu Debing,Zhao Fenxia,He Bin,Li Tianjiang,Duan Zongliang. Response of Clonal Growth Pattern of Hippophae rhamniodes L. subsp, sinensis to Different Irrigation Intensities[J]. Journal of Northeast Forestry University, 2008, 36(9) |
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| Authors: | Xu Debing Zhao Fenxia He Bin Li Tianjiang Duan Zongliang |
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| Abstract: | An experiment was conducted to study the clonal growth patterns of Hippophae rhamniodes L. subsp. sinensis population under different irrigation intensities in order to discuss the strategies for the regulation of clonal growth and the optimal irrigation intensity. Results showed that number (density) of daughter ramet, base diameter of first grade root sprout, total length of root sprouts, number of root sprouts and branching intensity exhibited quadratic parabola changes along with irrigation intensity increasing. The clonal growth patterns of the population changed from"guerrilla type"to"phalanx type"and then to"guerrilla type"with irrigation intensity increasing. |
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| Keywords: | Hippophae rhamniodes L. subsp. sinensis Irrigation intensity Clonal growth patterns Plasticity |
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