当前位置: 首页 > 文章 > 重度火烧对兴安落叶松林群落物种组成及多样性的影响 水土保持通报 2017 (6) 56-61
Position: Home > Articles > Species Composition and Diversity of Severe Burned Phytocoenosium After Different Regenerate Years Bulletin of Soil and Water Conservation 2017 (6) 56-61

重度火烧对兴安落叶松林群落物种组成及多样性的影响

作  者:
王鼎;王梓璇;冯倩倩;舒洋;周梅;赵鹏武
单  位:
内蒙古农业大学草原与资源环境学院;内蒙古赛罕乌拉森林生态系统国家定位研究站
关键词:
兴安落叶松林;火烧迹地;物种组成;多样性
摘  要:
[目的]研究重度火烧对兴安落叶松林群落物种组成及多样性的影响,为探索森林生态系统恢复与重建提供依据。[方法]以内蒙古大兴安岭兴安落叶松林重度火烧迹地为研究对象,采用分层取样的方法对群落中植被进行调查,分析比较不同恢复年份后兴安落叶松林群落各层物种组成及多样性的差异。[结果]不同恢复年份后群落各层α多样性指数总表现为:草本层>灌木层>乔木层的趋势。群落物种总数随着恢复时间的推移呈逐渐增多的趋势,这种变化趋势主要出现在草灌层内。群落草本层物种数除1996S(12种)以外(S表示重度火烧迹地,1996S为1996年重度火烧迹地,下同),其他3个恢复年份2012年(4种)、2009年(7种)、2003年(7种)均小于对照(CK,未过火区)(8种),而群落灌木层物种数除2003年(2种)与对照(2种)相当,其他3个恢复年份2012年(4种)、2009年(7种)、2003年(7种)均大于对照。[结论]总体来看,重度火干扰有利于植被的更新与演替。
译  名:
Species Composition and Diversity of Severe Burned Phytocoenosium After Different Regenerate Years
作  者:
WANG Ding;WANG Zixuan;FENG Qianqian;SHU Yang;ZHOU Mei;ZHAO Pengwu;Inner Mongolia Agricultural University;Inner Mongolia Saihanwula Forest Ecosystem National Research Station;
关键词:
Larix gmelini forest;;burned area;;species composition;;diversity of species
摘  要:
[Objective]In this study,areas of severe burned larix gmelinii forests have experienced different regenerate years.The purpose was to provide a basis for exploring the forest ecosystem restoration and reconstruction.[Methods]The natural regeneration conditions,community structure characteristics,species composition,community biodiversity were observed.[Results]The results showed that:The alpha diversity index of each community layer in different regenerate years showed a rank of herb layer>shrub layer>tree layer.The total number of species had a trend of gradual increase along regeneration.This trend was mainly appeared in herb and shrub layers.The number of species in the herbaceous layer was lower than that of the control plot,except for that in 1996(1996 evere burned,S represents severe burned),while the number of species in the shrub layer were larger than the control plots,except for that in 2003 S.[Conclusion]In general,severe fire interference is conducive to the vegetation regeneration and succession.

相似文章

计量
文章访问数: 8
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊