当前位置: 首页 > 文章 > 黑松不同密度对主要伴生树种生态位的影响 浙江林业科技 2013,33 (4) 1-5
Position: Home > Articles > Effects of Different Density of Pinus thunbergii on The Niche of Main Accompanying Tree Species Journal of Zhejiang Forestry Science and Technology 2013,33 (4) 1-5

黑松不同密度对主要伴生树种生态位的影响

作  者:
吴初平;叶激华;张骏;沈爱华;朱锦茹;应宝根;袁位高;江波
单  位:
浙江省林业生态工程管理中心;浙江省舟山市林场;浙江省林业科学研究院
关键词:
松材线虫病;黑松;生态位;舟山海岛
摘  要:
在松材线虫(Bursaphelenchus xylophilus)危害较小、中等、较大的3种黑松(Pinus thunbergii)林型内分别设置了5个大小为20 m×20 m的样地,采用生态位宽度公式统计分析了黑松不同密度对主要伴生树种生态位的影响。结果表明:松材线虫危害越大,残留黑松越少,落叶乔木逐渐成为林分的主体;3种林型内枫香(Liquidambar formosana)、白栎(Quercus fabri)、黄檀(Dalbergia hupeana)的生态位宽度值都比较大,随着危害加大红楠(Machilus thunbergii)、紫薇(Lagerstroemia indica)、山矾(Symplocos sumuntia)、野桐(Mallotus japonicus var.floccosus)、山槐(Albizia kalkora)等树种的生态位宽度值有所增加,这说明危害较小的林分内资源相对充足,但随着黑松的减少和群落演替的进行,森林群落环境得到改善,入侵的树种越来越多,种间竞争越来越激烈;可以预见随着黑松的减少,该类群落的物种数量与种群密度都会越来越大。
译  名:
Effects of Different Density of Pinus thunbergii on The Niche of Main Accompanying Tree Species
作  者:
WU Chu-ping;YE Ji-hua;ZHANG Jun;SHEN Ai-hua;ZHU Jin-ru;YING Bao-gen;YUAN Wei-gao;JIANG Bo;Zhejiang Forestry Academy;Zhoushan Forest Farm of Zhejiang;Zhejiang Forestry Ecological Engineering Administration;
关键词:
Pinus thunbergii;;niche breadth;;Zhoushan island
摘  要:
Five sample plots of 20m×20m were established in Pinus thunbergii forest with different densities in Zhoushan,Zhejiang province.Effect of different pine density on the niche of main accompanying tree species was calculated by niche breadth formula.The results showed that pine density had negative effect on deciduous broad-leaf tree species.In pine forest with 3 different densities,the niche breadth of Liquidambar formosana,Quercus fabri and Dalbergia hupeana was relatively large,and along with decrease of pine density,the niche breadth of Machilus thunbergii,Lagerstroemia indica,Symplocos caudata,Mallotus japonicus var.floccosus and Albizia kalkora increased.

相似文章

计量
文章访问数: 7
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊