中亚热带地区氮沉降对杉木幼林土壤细菌群落多样性及组成的影响

doi:10.13287/j.1001-9332.201801.034

应用生态学报 ›› 2018, Vol. 29 ›› Issue (1): 53-58.doi: 10.13287/j.1001-9332.201801.034

中亚热带地区氮沉降对杉木幼林土壤细菌群落多样性及组成的影响

郝亚群^1,2, 谢麟^1,2, 陈岳民^1,2*, 唐偲頔^1,2, 刘小飞^1,2, 林伟盛^1,2, 熊德成^1,2, 杨玉盛^1,2

¹福建师范大学地理科学学院, 福州 350007;
²湿润亚热带山地生态国家重点实验室培育基地, 福州 350007

收稿日期:2017-07-07 出版日期:2018-01-18 发布日期:2018-01-18
通讯作者: * E-mail: ymchen@fjnu.edu.cn
作者简介:郝亚群,女,1992年生,硕士研究生.主要从事森林土壤微生物研究. E-mail: 597042367@qq.com
基金资助:
本文由国家自然科学基金项目(31670620)、海峡联合基金项目(U1505233)和福建省科技厅项目(2016R1032-2)资助

Effects of nitrogen deposition on diversity and composition of soil bacterial community in a subtropical Cunninghamia lanceolata plantation.

HAO Ya-qun^1,2, XIE Lin^1,2, CHEN Yueh-min^1,2*, TANG Cai-di^1,2, LIU Xiao-fei^1,2, LIN Wei-sheng^1,2, XIONG De-cheng^1,2, YANG Yu-sheng^1,2

¹School of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China;
²Statef Key Laboratory of Humid Subtropical Mountain Ecology, Fuzhou 350007, China

Received:2017-07-07 Online:2018-01-18 Published:2018-01-18
Contact: * E-mail: ymchen@fjnu.edu.cn
Supported by:
This work was supported by the National Natural Science Foundation of China (31670620), the Strait Union Fund Project (U1505233) and the Science and Technology Department of Fujian Province, China (2016R1032-2).

摘要/Abstract

摘要： 大气氮沉降量持续增加已经成为当前关注的热点.土壤细菌群落作为土壤环境中大量存在的微生物,在养分循环过程中发挥着不可忽视的作用.在福建三明森林生态系统与全球变化研究站陈大观测点,我们在野外模拟大气氮沉降试验,通过16S rDNA扩增子测序,研究中亚热带地区杉木幼林土壤细菌群落多样性和组成对氮沉降的响应.结果表明: 短期施氮对研究区的土壤细菌群落多样性和组成并未产生显著影响,但高氮处理显著改变敏感菌群相对丰度,如富营养型类群丰度增加、贫营养型类群丰度降低.土壤细菌群落的营养策略发生变化,这可能是受到了养分有效性的驱动.因此,了解土壤细菌群落和养分分配格局对氮沉降的响应,有助于提高我们对未来环境的预测能力.

Abstract: The increasing rate of atmospheric nitrogen (N) deposition has become the focus of research attention. Soil bacterial community plays an important role in soil nutrient cycling. We stimulated N deposition at the Forest Ecosystem of Fujian Normal University and Global Change Research Station in Chenda Town, Sanming City in the Fujian Province of China. We examined the effect of N deposition on the structure and composition of soil bacterial community using 16S rDNA amplification sequencing. The results showed that short-term addition of N had no significant effect on the soil bacterial diversity and composition, but high N treatment significantly affected therelative abundance of individual bacterial species, which increased the abundance of Copiotrophic group and decreased that of the corresponding Oligotrophic group, indicating that changes in soil bacterial nutrient strategies were driven by the availability of nutrients. Enhanced understanding of the responses of soil bacterial community and nutrient distribution pattern to rapid N deposition could improve the prediction ability about the future environment.

郝亚群, 谢麟, 陈岳民, 唐偲頔, 刘小飞, 林伟盛, 熊德成, 杨玉盛. 中亚热带地区氮沉降对杉木幼林土壤细菌群落多样性及组成的影响[J]. 应用生态学报, 2018, 29(1): 53-58.

HAO Ya-qun, XIE Lin, CHEN Yueh-min, TANG Cai-di, LIU Xiao-fei, LIN Wei-sheng, XIONG De-cheng, YANG Yu-sheng. Effects of nitrogen deposition on diversity and composition of soil bacterial community in a subtropical Cunninghamia lanceolata plantation.[J]. Chinese Journal of Applied Ecology, 2018, 29(1): 53-58.

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中亚热带地区氮沉降对杉木幼林土壤细菌群落多样性及组成的影响

Effects of nitrogen deposition on diversity and composition of soil bacterial community in a subtropical Cunninghamia lanceolata plantation.

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