克隆植物中国沙棘种群稳定性维持途径的探讨 |
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引用本文: | 徐德兵,李根前,贺斌,李甜江.克隆植物中国沙棘种群稳定性维持途径的探讨[J].国际沙棘研究与开发,2006,4(4):44-48. |
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作者姓名: | 徐德兵 李根前 贺斌 李甜江 |
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作者单位: | 1. 西南林学院,昆明,650224 2. 西南林学院,昆明,650224;西北农林科技大学,杨陵,712100 |
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基金项目: | 国家自然科学基金项目(30371193),云南省学术与技术带头人后备人才基金项目(2005PY01-20) |
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摘 要: | 中国沙棘属于阳性树种,因此有些学者将其视为群落演替过程中的先锋种群,而有些学者的研究表明它在自然状态下更新良好。近年来的研究进一步证明,中国沙棘能够依靠克隆生长所赋予生理整合和觅养行为等特性提高环境资源的利用效率以及自身的繁殖和生存有效性,通过林窗更新和林缘扩散等途径维持种群的稳定性和持久性。
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关 键 词: | 中国沙棘逃避 克隆生长 林窗更新 林缘扩散 平茬更新 稳定性维持 |
文章编号: | 1672-4683(2006)04-0044-04 |
收稿时间: | 2006-08-15 |
修稿时间: | 2006年8月15日 |
A Discussion on the Population Stability Maintenance in Clonal Plant of Hippophae rhamnoides L.subsp.sinensis |
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Authors: | Xu Debing Li Genqian He Bin Li Tianjiang |
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Institution: | 1. Southwest Forestry College, Kunming 650224, China; 2. Northwest Science and Technology University of Agriculture and Forestry, Yangling 712100, China |
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Abstract: | Hippophae rhamnoides L.subsp.sinensis is a heliophyte tree,so that some scholars consider it as a pioneer population,but others regard that the tree regenerate well in natural conditions.The studies carried out recently years also showed that the tree has a high utilization ratio in natural resources and a high capability in clonal propagation and survival rate with physiological integration and foraging behavior as a result of clonal growth(stump and root sprout).Therefore,the population could maintain its stability with edge dispersal,gap regeneration and trunk cutting. |
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Keywords: | Hippophae rhamnoides L subsp sinensis clonal growth gap regeneration edge dispersal trunk cutting stability maintenance |
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