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应用生态学报 ›› 2017, Vol. 28 ›› Issue (2): 537-544.doi: 10.13287/j.1001-9332.201702.039

• 研究报告 • 上一篇    下一篇

武夷山不同海拔黄山松枝叶大小关系

李曼1, 2, 郑媛1, 2, 郭英荣3, 程林3, 卢宏典1, 2, 郭炳桥1, 2, 钟全林1, 2, 程栋梁1, 2*   

  1. 1福建师范大学地理科学学院, 福州 350007;
    2湿润亚热带山地生态国家重点实验室培育基地/福建省植物生理生态重点实验室, 福州 350007;
    3江西武夷山国家级自然保护区管理局, 江西铅山 334500
  • 收稿日期:2016-07-15 出版日期:2017-02-18 发布日期:2017-02-18
  • 通讯作者: * E-mail: chengdl02@aliyun.com
  • 作者简介:李曼, 女, 1990年生, 硕士研究生. 主要从事植物生理生态研究. E-mail: Manningli12@126.com
  • 基金资助:
    本文由国家自然科学基金项目(31370589,31170374,31170596)、福建省杰出青年基金项目(2013J06009)和福建省青年顶尖人才支持计划项目资助

Scaling relationships between twig size and leaf size of Pinus hwangshanensis along an altitudinal gradient in Wuyi Mountains, China.

LI Man1, 2, ZHENG Yuan1, 2, GUO Ying-rong3, CHENG Lin3, LU Hong-dian1, 2, GUO Bing-qiao1, 2, ZHONG Quan-lin1, 2, CHENG Dong-liang1, 2*   

  1. 1College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China;
    2State Key Laboratory Breeding Base of Humid Subtropical Mountain Ecology/Fujian Provincial Key Laboratory of Plant Physiology and Ecology, Fuzhou 350007, China;
    3Administrative Bureau of Jiangxi Wuyi-shan National Nature Reserve, Yanshan 334500, Jiangxi, China.

  • Received:2016-07-15 Online:2017-02-18 Published:2017-02-18
  • Contact: * E-mail: chengdl02@aliyun.com
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (31370589,31170374,31170596), the Distinguished Young Scholars Foundation of Fujian, China (2013J06009), and the Outstanding Young Scholars Program of Fujian Province.

摘要: 对武夷山自然保护区不同海拔黄山松叶片面积、叶片数量、小枝长度及小枝直径等性状进行测定,分析不同海拔黄山松枝-叶大小间的权衡关系.结果表明: 随海拔升高,黄山松小枝的叶片数量、小枝长度、小枝直径、出叶强度及茎截面积逐渐增大,单叶面积呈逐渐减小趋势;不同海拔黄山松小枝出叶强度与单叶面积均呈显著负相关,不同海拔黄山松小枝茎截面积与总叶面积呈显著正相关;不同海拔黄山松小枝长度、小枝直径与出叶强度呈显著负相关,与单叶面积、叶片数量及总叶面积均呈显著正相关.为提高竞争优势或是资源利用效率,低海拔黄山松倾向于在短枝上着生量少但单叶面积大的针叶,而高海拔黄山松趋向于在长枝上着生量大但单叶面积小的针叶,这体现出不同海拔梯度黄山松小枝的资源利用策略及枝叶间生物量分配的权衡机制.

Abstract: To analyze the tradeoff relationship between twigs and leaves, the traits of Pinus hwang-shanensis including leaf area, leaf number, twig length and twig diameter were investigated in Wuyi Mountains along an altitudinal gradient. The results indicated that leaf number, twig length, twig diameter, leafing intensity and twig stem cross-sectional area of P. hwangshanensis increased gra-dually with the increasing altitude, while individual leaf area decreased gradually. Leafing intensity of P. hwangshanensis at different altitudes had significant negative relationships with leaf area. The cross-sectional area of P. hwangshanensis had significant positive relationship with total leaf area. Twig length and twig diameter of P. hwangshanensis correlated negatively with leafing intensity, but positively with leaf area, leaf number and total leaf area. To enhance the competitiveness and resource utilization efficiency, P. hwangshanensis at low altitude tended to have relatively few large leaves on short twigs, and those at high altitude tended to have a large number of small leaves on long twigs. Such tradeoff between twigs and leaves reflected the strategy of resource utilization and the balance of biomass allocation mechanism of P. hwangshanensis responding to the altitudinal change.