首页    编委会    编辑部    历任主编    获奖信息    征稿简则    友情链接    English    旧版主页
  在线期刊
       最新录用
       当期目次
       过刊浏览

  下载专区
       版权协议
       征稿范文
       来稿登记表
       录用证明

  联系我们

投稿e-mail: jbnuns_sub@bnu.edu.cn

主编e-mail: jbnuns_eic@bnu.edu.cn

办公地点:北京师范大学 科技楼A区216,218,220室

电话:(010)58807851,58802050,58807872,58807713

通信处:北京市海淀区新街口外大街19号北京师范大学理科学报编辑部

邮政编码:100875

办公室e-mail: jbnuns@bnu.edu.cn

本网站暂不提供全文下载,如需全文下载请点击

中国知网

 

标题

斑块开度对树木结实和交配格局的影响:以城市油松(Pinustabulaeformis)种群为例

作者

鲍 蕾 魏博彦 葛剑平 王红芳

机构

北京师范大学 景观生态与可持续性科学研究中心

摘要

森林树种如何响应生境破碎化一直是备受关注的问题,种群大小和隔离度是两个最主要也是研究最多的因素。然而其它因子如林冠开度却甚少得到关注。林冠开度可以通过影响花粉扩散和结实而影响种群的交配格局及其对生境破碎化的响应。本文以城市种植油松斑块为例,探讨了斑块开度(作为林冠开度指标)对油松交配格局和结实的影响,发现斑块开度和油松自交率呈显著正相关,并与个体结实量具有一定的相关性。其原因可能是由于斑块开度增大导致自交种子败育率下降,或者是由于孤立木接收外源花粉相对较少。另外,本研究未发现斑块开度对花粉迁入有显著影响。

关键词

斑块开度;结实;交配格局

引用

鲍蕾, 魏博彦, 葛剑平, 王红芳.斑块开度对树木结实和交配格局的影响:以城市油松(Pinus tabulaeformis)种群为例[J]. 北京师范大学学报(自然科学版),2016,52(1):39-43.

基金

国家自然科学基金青年基金资助项目(31200328);北京师范大学自主科研基金资助项目(2012LYB31)

分类号

Q941

DOI

10.16360/j.cnki.jbnuns.2016.01.010

Title

Effects of patch openness on seeding and mating pattern of Pinus tabulaeformis Carr

Author

BAO Lei, WEI Boyan, GE Jianping , WANG Hongfang

Affiliations

Beijing Normal University Center for Landscape Ecology and Sustainability Science

Abstract

How forest tree species responds to habitat fragmentation has been a hot issue for a long time. Population size and population isolation are two major factors in such studies, other factors such as canopy openness earn little focus. Canopy openness can affect mating pattern of populations, respond to habitat fragmentation via pollen dispersion and seed production. In this study, we chose Chinese pine (Pinus tabulaeformis Carr.) patches as case model of habitat fragmentation, measured patch openness representing canopy openness, obtained data of seed production and mating pattern via counting and paternity analysis respectively. Correlation analysis indicated that patch openness was significantly correlated with selfing rate and marginally correlated with seed production. Patch openness might affect mating pattern and seed production by adjusting light conditions within patches. Although no obvious proofs have shown that patch openness influence pollen dispersal, our results indicated that population size and isolation change are not the only aspect of habitat fragmentation, but it should be a multidimension question.

Key words

patch openness; seeds; mating pattern

cite

BAO Lei, WEI Boyan, GE Jianping , WANG Hongfang. Effects of patch openness on seeding and mating pattern of Pinus tabulaeformis Carr[J]. Journal of Beijing Normal University(Natural Science),2016,52(1):39-43.

DOI

10.16360/j.cnki.jbnuns.2016.01.010

Copyright © 2014 Journal of Beijing Normal University (Natural Science)
Designed by Mr. Sun Chumin. Email: cmsun@mail.bnu.edu.cn