干旱区生态环境知识资源中心(Arid): 民勤沙拐枣克隆种群构件结构及与环境因子的灰色关联分析

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	民勤沙拐枣克隆种群构件结构及与环境因子的灰色关联分析
其他题名	The Grey Relatedness Analysis between the Modular Structure of Clonal Population of Calligonum mongolicum and the Environmental Factors in the Minqin Desert
	周资行 1; 焦健 1; 李毅 1; 李永兵 2; 张世虎 2
来源期刊	林业科学
ISSN	1001-7488
出版年	2012
卷号	48 期号:5 页码:141-149
中文摘要	一个植株特定的几何形态是其各个层次的构件单位按一定的方式组合而成的，这种特殊的几何形态表达了该个体在生理、生态上对其环境空间的适应和伸展能力，以及它对光、水分、养分等的竞争能力(董鸣，1997)。通过对构件的研究，有望将长期以来各自独立发展的植物分类学、形态学、生理学、生态学等学科有机地结合起来，以期能更有效地探讨植物种群的生存、适应对策和进化机制。由于构件结构的复杂性，对其研究必须结合适宜的方法，灰色关联分析不失为一种切实有效的分析构件间及其与环境因子关系的技术，通过较为细致的基株形态构件、分株形态构件和分枝构件3个层次与环境因子的灰色关联分析，反映沙拐枣克隆构件结构的生长规律(分株和基株是保障，一级分枝是基础，二级分枝过渡，三级分枝和当年生枝扩张)，体现环境适应性(分枝构件0.789>分株构件0.714>基株构件0.699)，有助于更好地认识植物种群构件的整体生长发育与资源整合利用状况。
英文摘要	Study on modules of clonal populations has important theoretical and practical significance to understand the survival regularity and environmental adaptation mechanisms. The grey system theory was used to analyze correlations between environmental factors and the modular structure of clonal populations of Calligonum mongolicum in the Minqin desert at genet, ramet and branch system levels. The results showed that: 1) Heights of genet and ramet could reflect the development status and environment adaptability and indicate the growth state of the modules of the clonal population. 2) The ramet had more significant effects on the whole modular structure than the genet. 3) The first grade branch system was the foundation for the whole clonal plant. The internal correlation analysis showed that diameter growth and length growth coordinated with each other. The second grade branch system had limited impact and could be taken as a transition system. The third grade branch system significantly influenced the present year branch system whose growth was dependent on both the first grade and third grade branches. 4) The correlation among the modules showed a strong hierarchy, indicating that the whole pattern of the modular structure was relatively reasonable, and the population had strong adaptability to environment. 5) There were close correlations between the 16 environmental factors in study and the modules. Climate factors played a crucial role, soil bulk density and the content of soil organic matter also strongly affected the growth and development of C. mongolicum, and the soil moisture content was also a relatively sensitive factor.
中文关键词	沙拐枣克隆种群 ; 构件结构 ; 环境因子 ; 灰色关联分析 ; 民勤沙地
英文关键词	Calligonum mongolicum clonal population modularity structure environmental factors grey relational analysis Minqin desert sand
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FORESTRY
WOS研究方向	Forestry
CSCD记录号	CSCD:4565644
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/228290
作者单位	1.甘肃农业大学林学院, 兰州, 甘肃 730070, 中国; 2.甘肃省民勤县林业局, 民勤, 733300
推荐引用方式 GB/T 7714	周资行,焦健,李毅,等. 民勤沙拐枣克隆种群构件结构及与环境因子的灰色关联分析[J]. 甘肃农业大学,2012,48(5):141-149.
APA	周资行,焦健,李毅,李永兵,&张世虎.(2012).民勤沙拐枣克隆种群构件结构及与环境因子的灰色关联分析.林业科学,48(5),141-149.
MLA	周资行,et al."民勤沙拐枣克隆种群构件结构及与环境因子的灰色关联分析".林业科学 48.5(2012):141-149.