氮沉降对草地植物生殖策略的影响  

Effects of Nitrogen Deposition on Grassland Plant Reproduction Strategies

作　　者：李梓萌[1] 刘鞠善[1] 吴金凤 王德利[1] LI Zi-meng;LIU Ju-shan;WU Jin-feng;WANG De-li(Institute of Grassland Science,Northeast Normal University/Key Laboratory of Vegetation Ecology,Ministry of Education,Changchun 130024,China)

机构地区：[1]东北师范大学草地科学研究所/植被生态科学教育部重点实验室,吉林长春130024

出　　处：《中国草地学报》2021年第7期106-114,共9页Chinese Journal of Grassland

基　　金：国家自然科学基金(31971744)。

摘　　要：大气氮沉降增加是全球变化的重要组成部分,对草地植物的生长与生殖产生重要影响。目前关于不同浓度、组分和时间氮沉降对植物生殖物候和生殖分配的影响已有研究。长期氮沉降能够增强植物种间竞争,特别是对光和土壤资源的竞争,从而影响植物的生长与生殖。在国内外关于氮沉降对草地植物生殖策略作用研究的基础上,对植物生殖对策的主要影响因素以及氮沉降影响生殖策略的作用途径和机制进行了综述,并对未来的研究方向进行了展望。The increase of atmospheric nitrogen deposition is an important part of global change,which has a huge impact on the growth and reproduction of grassland plants.At present,most studies focus on the effects of different nitrogen types,concentrations and action time on plant reproduction phenology and reproduction allocation.Long term nitrogen deposition can enhance plant interspecific competition,especially the competition for light and soil resources,thus affecting plant growth and reproduction.Based on the domestic and foreign research on the effects of nitrogen deposition on the reproductive strategies of grassland plants,this paper reviewed the main influencing factors of nitrogen deposition on reproductive strategy,as well as the future research directions.

关 键 词：生殖策略 氮沉降 生殖分配 全球变化 

分 类 号：S812[农业科学—草业科学]