Zhu Xiaoxu,Wen Zhongming,Zheng Cheng,et al.Functional Traits of Plant Life Forms and Their Responses to Environmental Factors in the Yanhe River Basin[J].Research of Soil and Water Conservation,2023,30(06):328-336.[doi:10.13869/j.cnki.rswc.2023.06.024]
延河流域不同生活型植物功能性状特征及其对环境变化的响应
- Title:
- Functional Traits of Plant Life Forms and Their Responses to Environmental Factors in the Yanhe River Basin
- 文章编号:
- 1005-3409(2023)06-0328-09
- Keywords:
- plant functional traits; plant life form; Yanhe River Basin; environmental change; survival strategy
- 分类号:
- Q142.9
- 文献标志码:
- A
- 摘要:
- [目的]探究不同生活型植物对延河流域生境的生长适应策略,为理解植物对环境的适应机制和该流域植被恢复物种选择等提供理论依据和实际指导。[方法]以黄土丘陵区延河流域为研究区,选择乔木、灌木和草本3种植物生活型,调查了6个与资源获取能力相关的植物功能性状,应用方差分析、线性回归和冗余分析方法探究了延河流域不同生活型植物对环境的适应策略和机制。[结果]延河流域不同生活型植物的比叶面积、比根长、叶组织密度、根组织密度、叶氮含量、根氮含量均存在显著性差异; 水分是延河流域植物生存的限制性因子。[结论]为适应延河流域生境,草本植物采取“快速投资—收益”型(获取型)策略,灌木和乔木植物采取“缓慢投资—收益”型(保守型)策略。
- Abstract:
- [Objective] The aims of this study are to explore the growth adaptation strategies of different life-types of plants to the habitats in the Yanhe River Basin, and to provide theoretical basis and practical guidance for understanding the mechanisms of plant adaptation to the environment and the selection of species for vegetation restoration in this basin. [Methods] Using the Yanhe River Basin in the Loess Hills region as the study area, we selected three plant life types: trees, shrubs and herbs, six plant functional traits related to resource acquisition capacity were investigated. ANOVA, linear regression and redundancy analysis were applied to investigate the adaptation strategies and mechanisms of different life types of plants to the environment in the Yanhe River Basin. [Results] The specific leaf area, specific root length, leaf tissue density, root tissue density, leaf nitrogen content, and root nitrogen content of different life types of plants in the Yanhe River Basin were significantly different. Water was the limiting factor for plant survival in the Yanhe River Basin. [Conclusion] To adapt to the habitats of the Yanhe River basin, herbaceous plants adopted a ‘fast investment-gain' type(acquisition type)strategy, while shrubs and trees adopted a ‘slow investment-gain' type(conservative type)strategy.
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备注/Memo
收稿日期:2022-07-21 修回日期:2022-09-25
资助项目:国家自然科学基金“黄土丘陵沟壑区植被水沙拦蓄效率变化与水文连通性响应”(41977077)
第一作者:朱晓旭(1997—),男,山东潍坊人,硕士,研究方向为植物功能性状。E-mail:zhuxiaoxu@nwafu.edu.cn
通信作者:温仲明(1969—),男,陕西定边人,博士,研究员,主要从事黄土高原植被恢复与重建、草地生态恢复研究。E-mail:zmwen@ms.iswc.ac.cn