您的位置:首页  > 论文页面

外来植物的原产地与入侵地种群间生物性状比较的整合分析

发表时间:2016-11-15  浏览量:1718  下载量:531
全部作者: 徐 静,臧艳艳,唐建军,陈 欣
作者单位: 浙江大学生命科学学院
摘 要: 采用整合分析方法研究了外来植物在原产地和入侵地的生物性状差异。通过对不同实验研究地点(原产地和入侵地)、不同实验条件(温室条件和野外条件)和不同的植物物种生长型(禾本科草本、非禾本科草本、灌木)7个分类的分析,发现外来植物的总生物量、地上部分生物量、株高、开花比例、种子产量和地下分枝数在入侵地均大于原产地。温室条件下,外来植物在入侵地的总生物量、地上生物量、株高、开花比例和种子产量均显著大于原产地;而野外条件下,只有开花的比例和种子产量在入侵地产生了显著的正效应。比较不同植物生长型发现,禾本科草本植物总生物量具有显著的正效应值;非禾本科草本植物总生物量和地上生物量具有显著的正效应值;灌木地上生物量和株高具有显著的正效应值。以上结果说明,外来植物的入侵地种群比原产地种群表现出更强的生物学特性。
关 键 词: 生态学;外来植物;生物性状;整合分析
Title: Comparisons on biological traits of invasive plants in their native and introduced zones: a meta-analysis
Author: XU Jing, ZANG Yanyan, TANG Jianjun, CHEN Xin
Organization: College of Life Sciences, Zhejiang University
Abstract: In this study, we used meta-analysis to investigate how biological characteristics of invasive plants changes when they were introduced into the invasive ranges from their native ranges under seven different conditions. Experimental sites (native ranges and introduced ranges), experimental conditions (greenhouse experiments and field experiments) and plant life forms (grasses, herbs and shrubs) were categorized. Our results showed that total biomass, shoot biomass, plant height, flower numbers, seed yield and belowground branching of the invasive plants were higher in introduced ranges than in native ranges. Compared to greenhouse experiments, where total biomass, shoot biomass, plant height, flower numbers and seed yield were all higher in introduced ranges than in native ranges, only flower numbers and seed yields of the invasive plants were higher in introduced ranges than in native ranges on field experiments. Among plant life forms, total biomass in grasses, total biomass and shoot biomass in fobs and shoot biomass and plant height of the invasive plants were higher in the introduced ranges than in the native ranges. Our results suggested that invasive plants became more aggressive in the introduced ranges than in the native ranges.
Key words: ecology; invasive plant; biology traits; meta-anaylsis
发表期数: 2016年11月第21期
引用格式: 徐 静,臧艳艳,唐建军,等. 外来植物的原产地与入侵地种群间生物性状比较的整合分析[J]. 中国科技论文在线精品论文,2016,9(21):2188-2195.
 
0 评论数 0
暂无评论
友情链接