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不同生境下柠条根际环境植物多样性研究

2021-09-27赵鑫尚晓蕊李景艳王瑞刚丛靖宇

安徽农业科学 2021年18期

赵鑫 尚晓蕊 李景艳 王瑞刚 丛靖宇

摘要 為研究不同生态环境下柠条根际环境与植物多样性的关系,对内蒙古生态环境不同的4个地区中柠条根际环境的植物种类进行统计分析。结果表明,柠条根际环境有利于增加植物多样性;不同地区不同的生态环境影响柠条根际环境的植物多样性,年均气温、年均降水量均对植物多样性具有显著影响;4个地区柠条根际环境的优势种多为菊科植物,而对照区的优势种则多为禾本科植物。

关键词 不同生境;柠条;根际环境;植物多样性

中图分类号 Q 948.12  文献标识码 A

文章编号 0517-6611(2021)18-0151-05

doi:10.3969/j.issn.0517-6611.2021.18.037

开放科学(资源服务)标识码(OSID):

Study on Plant Diversity in Rhizosphere Environment of Caragana in Different Habitats

ZHAO Xin,SHANG Xiao-rui,LI Jing-yan et al (Key Laboratory of Plant Stress Physiology and Molecular Biology,Inner Mongolia Agricultural University,Inner Mongolia Engineering Research Center for Plant Gene Resources Mining and Molecular Breeding,Hohhot,Inner Mongolia  010020)

Abstract In order to study the relationship between Caragana rhizosphere environment and plant diversity in different ecological environments,this study conducted a statistical analysis on the plant species of Caragana rhizosphere environments in four regions with different ecological environments in Inner Mongolia.The results showed that Caragana rhizosphere environment was conducive to the increase of plant diversity.Different ecological environments affected the plant diversity in Caragana rhizosphere,and the average annual temperature and precipitation had significant influence on the plant diversity.The dominant species were mainly Compositae in Caragana rhizosphere in the four areas,while the dominant species were mostly Gramineae in the control areas.

Key words Different habitats;Caragana;Rhizosphere environment;Plant diversity

基金项目 内蒙古自治区科技创新引导项目“柠条遗传修饰新种质创制及其在生态修复中的推广应用”(KCBJ2018012);内蒙古自治区科技计划项目“乡土树种的收集、组学解析及其优异种质资源挖掘利用”。

作者简介 赵鑫(1998—),女,内蒙古包头人,从事植物生理生化及分子生物学研究。*通信作者,副教授,博士,从事植物生理生化及分子生物学研究。

收稿日期 2020-11-25

柠条(Caragana spp.) 为锦鸡儿属几种常见栽培种 (柠条锦鸡儿 (C.korshinskii) 、中间锦鸡儿 (C.intermedia) 和小叶锦鸡儿 (C.microphylla)的通称[1-2]。柠条为豆科灌木,具有良好的固氮作用、耐干旱和耐贫瘠能力,能够在干旱半干旱地区正常生长,同时能够有效地防止立地土壤发生风蚀,并在一定程度上提高土壤养分含量,加快林地植被的恢复[3]。柠条锦鸡儿为喜沙的旱生灌木,多生于荒漠、荒漠草原地带的固定、半固定沙地,在流动沙地、覆沙戈壁或丘间谷地、干河床边亦有生长。……

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