摘要
气温升高和大气氮沉降是全球气候变化的2种重要情景,其变化将导致植物物种多样性和土壤微生物多样性的改变。对植物物种多样性而言,气候变暖和大气氮沉降增加对其影响表现为直接影响(通过改变植物物候期、影响植物分布及群落组成)和间接影响(通过影响植物生长的环境因子和土壤理化性质)。对土壤微生物多样性而言,气候变暖和大气氮沉降主要改变微生物的土壤环境、微生物种类和数量,直接或间接地影响其多样性。此外,在对全球变暖和氮沉降的响应方面,植物物种多样性和微生物多样性存在关联,即全球变暖和氮沉降通过改变植物物种多样性而影响土壤微生物多样性,微生物也将通过种间关系反作用于植物物种多样性。笔者根据气候变化对栖息地环境的影响,选择温度和大气氮沉降这2种指标,探讨植物物种多样性和土壤微生物多样性对气候变化的响应,分析植物物种多样性和土壤微生物多样性之间的内在关联,旨在为植物和微生物多样性保护提供参考。
Elevated temperature and atmospheric nitrogen deposition are two important scenarios ot global climate change, which will lead to changes in plant species diversity and soil microbial diversity. For plant species diversity, the increase in climate wanning and atmospheric nitrogen deposition has direct effects （by altering plant phenology, affecting plant distribution and community composition） and indirect effects （by influencing plant growth and soil physical and chemical nature）. For soil microbial diversity, climate wanning and atmospheric nitrogen deposition mainly change the microbial soil environment, microbial species and quantity, directly or indirectly affect its diversity. In addition, plant species diversity and microbial diversity interspecific relationship. Based on the influence of climate change on habitat environment, this paper selected two indexes of temperature and atmospheric nitrogen deposition to explore the relationship between plant species diversity and soil microbial diversity to climate change, and analyzed the relationship between plant species diversity and soil microbial diversity, which could provide a reference for plant and microbial diversity protection.
作者
王美溪
刘珂艺
邢亚娟
Wang Meixi;Liu Keyi;Xing Yajuan(College of Agricultural Resource and Environment,Heilong]iang University,Harbin 150080;Institute of Forestry Science of Heilongjiang Province,Harbin 150081)
出处
《中国农学通报》
2018年第20期111-117,共7页
Chinese Agricultural Science Bulletin
基金
国家科技基础性工作专项A类项目"东北森林国家级保护区及毗邻区植物群落和土壤调查"(2014FY110600)
黑龙江省自然科学基金重点项目"黑龙江省寒温带针叶林生态系统碳循环对模拟N沉降的响应"(ZD201406)
黑龙江省科研机构创新能力提升专项计划"抗寒速生用材树种新种质创制及培育技术研究"(YC2014D005)
长白山科学研究院开放基金项目"长白山阔叶红松林生态系统细根动态和形态特征对氮沉降的响应"(2016001)
关键词
气候变化
大气氮沉降
土壤微生物多样性
植物物种多样性
关联分析
climate change
atmospheric nitrogen deposition
soil microbial diversity
plant species diversity
association analysis
