濒危植物长柄双花木(<i>Disanthus cercidifolius</i> var.<i>longipes</i>)叶功能性状随生长发育阶段的变化

耿梦娅; 陈芳清; 吕坤; 王玉兵; 向琳; 谢伶莉

doi:10.11913/PSJ.2095-0837.2018.60851

濒危植物长柄双花木(Disanthus cercidifolius var.longipes)叶功能性状随生长发育阶段的变化

1. 湖北省三峡地区生态保护与治理国际联合研究中心, 湖北宜昌 443002;
2. 宜昌市环境保护监测站, 湖北宜昌 443002

基金项目:

国家科技基础性工作专项（2015FY110300）。

详细信息

作者简介:
耿梦娅(1995-),女,硕士研究生,研究方向为恢复生态学(E-mail:1246211787@qq.com)。

通讯作者:
陈芳清,E-mail:fqchen@ctgu.edu.cn

中图分类号: Q945;Q949.751.4
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- 文章访问数: 664
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出版历程
- 收稿日期: 2018-05-27
- 网络出版日期: 2022-10-31
- 发布日期: 2018-12-27

Effects of developmental stage on the leaf functional traits of the endangered shrub species Disanthus cercidifolius var. longipes

1. Hubei International Scientific and Technological Cooperation Center of Ecological Conservation and Management in Three Gorges Area, Yichang, Hubei 443002, China;
2. Yichang Environmental Monitoring Station, Yichang, Hubei 443002, China

Funds:

This work was supported by a grant from the National Basic Science and Technology Project (2015FY110300).

摘要

摘要: 对珍稀濒危植物长柄双花木（Disanthus cercidifolius var.longipes H.T.Chang）不同生长发育阶段的叶厚度（LT）、叶面积（LA）、叶含水量（LWC）、比叶面积（SLA）、叶片全氮含量（LNC）和叶片全磷含量（LPC）等叶功能性状及性状症候群的变化进行了研究。结果显示，不同发育阶段长柄双花木的叶功能性状存在显著差异，其中LT、LA随植株发育呈递增趋势，而LWC、SLA、LNC和LPC则呈递减趋势。主成分分析显示，随着长柄双花木的不断发育，性状症候群朝着LT、LA增大而LWC、SLA、LNC和LPC减小的方向变化。表明该物种的经济策略随着发育进程由快收益向慢收益转变。
- 长柄双花木 /
- 叶功能性状 /
- 发育阶段 /
- 经济策略
Abstract: Changes in leaf functional traits, including leaf thickness(LT), leaf area(LA), leaf water content(LWC), specific leaf area(SLA), leaf nitrogen content(LNC), and leaf phosphorus content(LPC), as well as trait syndromes were studied in Disanthus cercidifolius var.longipes H.T.Chang during different developmental stages. Results showed that the leaf functional traits of D. cercidifolius var. longipes were significantly different among deve-lopmental stages. Both LT and LA increased with plant development, whereas LWC, SLA, LNC, and LPC decreased with plant development. Principal component analysis showed that the trait syndromes of D. cercidifolius var. longipes changed toward increasing LT and LA, but decreasing LWC, SLA, LNC, and LPC with plant development. Thus, the economic strategy of D.cercidifolius var. longipes changed from fast-profit to slow-profit pattern with deve-lopmental stage.
- Disanthus cercidifolius var. longipes /
- Leaf functional trait /
- Developmental stage /
- Economic strategy

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