广西科学2017，Vol.24Issue(2)：182-187,195,7.DOI:10.13656/j.cnki.gxkx.20170124.004
不同经营措施对桉树人工林植物多样性的影响
Effects of Different Management Measures on Plant Diversity in Eucalyptus Plantations
摘要
Abstract
[Objective]Investigating the effects of management measures on plant diversity in Eucalyptus plantations could provide theoretical basis for the scientific management of the Eucalyptus plantations.[Methods]A total of 4 treatments (A:Manual ground clearance and weeding,base fertilizing;B:Burning,chemical weeding,base fertilizing and topdressing;C:Manual ground clearance and weeding,base fertilizing and topdressing;CK:Eucalyptus plantations cutover land dominated by shrub and herbaceous) were used to comparatively study the effects of management measures on plant diversity in Eucalyptus plantations.[Results]Except for treatment B,the woody plant richness,dominant species composition and diversity index and herbaceous plant dominant species composition and diversity index did not significantly change (P>0.05) compared with that of before afforestation,while herbaceous plant richness deceased year by year.The woody plant Shannon-Wiener index (H′) and Evenness index (Jsw) of treatment B were significantly lower than those of treatment A,C and CK,while ecological dominance index (C) was significantly higher than that of treatment A,C and CK (P<0.05).The herbaceous plant Shannon-Wiener index (H′) and Evenness index (Jsw) of treatment A and C were significantly higher than those of treatment B and CK,while ecological dominance index (C) was significantly lower than that of treatment B and CK (P<0.05).There were not significant differences between treatment A and C and B and CK (P>0.05).[Conclusion]Manual ground clearance,weeding and base fertilizing had less influence on plant biodiversity.While burning,chemical weeding and frequently fertilizing would significantly decrease plant biodiversity in Eucalyptus plantations.关键词
桉树人工林/经营管理/植物多样性/干扰Key words
Eucalyptus plantations/management measures/plant diversity/disturbance分类
农业科技引用本文复制引用
马倩,周晓果,梁宏温,温远光,郭晋川,杨健基..不同经营措施对桉树人工林植物多样性的影响[J].广西科学,2017,24(2):182-187,195,7.基金项目
国家自然科学基金项目(31460121),广西重大专项计划项目(1222005)和水利部公益性行业科研专项项目(201301044)资助. （31460121）
