不同种源刨花楠林下幼苗叶功能性状与地理环境的关系

doi:10.13287/j.1001-9332.201802.008

应用生态学报 ›› 2018, Vol. 29 ›› Issue (2): 449-458.doi: 10.13287/j.1001-9332.201802.008

不同种源刨花楠林下幼苗叶功能性状与地理环境的关系

余华^1,2, 钟全林^1,3,4*, 黄云波⁵, 程栋梁^1,3,4, 裴盼¹, 张中瑞¹, 徐朝斌¹, 郑文婷^1,6

¹福建师范大学地理科学学院, 福州 350007;
²闽江学院海洋学院, 福州 350108;
³湿润亚热带山地生态国家重点实验室培育基地, 福州 350007;
⁴福建师范大学福建省植物生理生态重点实验室, 福州 350007;
⁵江西省抚州市临川区林业局, 江西抚州 344100;
⁶福州大学环境与资源学院, 福州 350116

收稿日期:2017-07-17 出版日期:2018-02-18 发布日期:2018-02-18
通讯作者: E-mail: qlzhong@126.com
作者简介:余华, 女, 1983年生, 博士研究生. 主要从事森林资源与环境管理研究. E-mail: cherry179@sina.com
基金资助:
本文由国家自然科学基金项目(31170596, 31170374, 31370589)、国家重点研发计划项目(2017YFC0505400)、福建省种业创新和产业化工程项目(2014S1477-4)、福建省科技厅重大项目(2014N5008)和福建省教育厅教育科研项目(JAT170443)资助

Relationships between leaf functional traits of Machilus pauhoi understory seedlings from different provenances and geographical environmental factors.

YU Hua^1,2, ZHONG Quan-lin^1,3,4*, HUANG Yun-bo⁵, CHENG Dong-liang^1,3,4, PEI Pan¹, ZHANG Zhong-rui¹, XU Chao-bin¹, ZHENG Wen-ting^1,6

¹College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China;
²Ocean College, Minjiang University, Fuzhou 350108, China;
³State Key Laboratory Breeding Base of Humid Subtropical Mountain Ecology, Fuzhou 350007, China;
⁴Fujian Province Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China;
⁵Forstry Bureau of Linchuan District, Fuzhou 344100, Jiangxi, China;
⁶College of Environment and Resources, Fuzhou University, Fuzhou 350116, China

Received:2017-07-17 Online:2018-02-18 Published:2018-02-18
Contact: E-mail: qlzhong@126.com
Supported by:
This work was supported by the National Natural Science Foundation of China (31170596, 31170374, 31370589), the National Key Research and Development Plan (2017YFC0505400), the Seed Industry Innovation Project of Fujian Province (2014S1477-4), the Major S&T Project of Fujian Province (2014N5008), and the Educational and Scientific Research Project of Fujian Provincial Education Department (JAT170443).

摘要/Abstract

摘要： 研究9个种源地天然刨花楠林下幼苗主要叶功能性状差异及其与地理环境的关系,分析刨花楠林下幼苗对地理环境变化的响应与适应机制.结果表明: 不同种源间刨花楠林下幼苗主要叶功能性状种内变异系数较大(8.8%～28.2%),其中种源间比叶面积、叶相对含水率、叶组织密度和叶厚差异显著,表明刨花楠林下幼苗具有较强的叶片形态可塑性.叶组织密度与叶干物质含量、叶相对含水率均呈显著正相关,与比叶面积、叶厚则呈显著负相关;比叶面积与叶干物质含量、叶面积均呈显著负相关,反映刨花楠林下幼苗可通过叶片性状组合的调整和平衡以响应地理环境变化.影响刨花楠林下幼苗叶功能性状可塑性的主要环境因子为经度、纬度、>10 ℃年积温和年均温.叶厚随着经度的增加而降低,叶干物质含量和叶相对含水率则随着经度的增加而增加;叶组织密度与经度和年均温呈显著正相关,且经度对其影响大于年均温;叶面积与>10 ℃年积温和经度呈显著正相关,且前者对其影响大于后者.

Abstract: To understand the adaptation mechanism of Machilus pauhoi seedlings to environmental changes, leaf functional traits of M. pauhoi seedlings from nine provenances, as well as relationships between leaf traits and environmental factors were analyzed. The results showed that leaf functional traits of M. pauhoi seedlings from different provenances showed significant intraspecific variations, with the coefficient of variation ranging from 8.8% to 28.2%. Specific leaf area, leaf relative water content, leaf tissue density and leaf thickness differed significantly among seedlings from different provenances, implying high leaf morphological plasticity. Moreover, leaf tissue density was positively correlated to leaf dry matter content and leaf relative water content, but negatively correlated to specific leaf area and leaf thickness. Specific leaf area showed significantly negative correlations with leaf dry matter content and leaf area. The covariation among those traits examined here indicated that M. pauhoi seedlings could adjust and balance the combination of leaf traits in response to environmental changes. Longitude, latitude, >10 ℃ annual accumulated temperature and mean annual temperature contributed largely to the variation of leaf functional traits of M. pauhoi seedlings. Leaf thickness decreased with the increase of longitude, while leaf dry matter content and leaf relative water content increased with the increase of longitude. Leaf tissue density was positively correlated with longitude and mean annual temperature, suggesting that longitude rather than mean annual temperature had greater effects on it. Leaf area was positively correlated with >10 ℃ annual accumulated temperature and longitude, indicating that annual accumulated temperature rather than longitude had greater effects on the variation of leaf area.

余华, 钟全林, 黄云波, 程栋梁, 裴盼, 张中瑞, 徐朝斌, 郑文婷. 不同种源刨花楠林下幼苗叶功能性状与地理环境的关系[J]. 应用生态学报, 2018, 29(2): 449-458.

YU Hua, ZHONG Quan-lin, HUANG Yun-bo, CHENG Dong-liang, PEI Pan, ZHANG Zhong-rui, XU Chao-bin, ZHENG Wen-ting. Relationships between leaf functional traits of Machilus pauhoi understory seedlings from different provenances and geographical environmental factors.[J]. Chinese Journal of Applied Ecology, 2018, 29(2): 449-458.

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不同种源刨花楠林下幼苗叶功能性状与地理环境的关系

Relationships between leaf functional traits of Machilus pauhoi understory seedlings from different provenances and geographical environmental factors.

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