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生态学杂志 ›› 2022, Vol. 41 ›› Issue (1): 90-97.doi: 10.13292/j.1000-4890.202201.033

• 研究报告 • 上一篇    下一篇

毛乌素沙地不同飞播造林年限土壤真菌群落结构特征

弓晓倩1,姚林杰1,张佳宁1,刘庆福1,2,苏妮尔1,闫勇智1,李奉时1,王晓江3,张庆1,4,5*   

  1. 1内蒙古大学生态与环境学院, 呼和浩特 010021; 2贵州大学林学院, 贵阳 550025;3内蒙古自治区林业科学研究院, 呼和浩特 010010; 4蒙古高原生态学与资源利用教育部重点实验室, 呼和浩特 010021; 5草原生态安全省部共建协同创新中心, 呼和浩特 010021)
  • 出版日期:2022-01-10 发布日期:2022-06-10

Soil fungi community structure in Mu Us Sandy Land with different afforestation durations by aerial seeding.

GONG Xiao-qian1, YAO Lin-jie1, ZHANG Jia-ning1, LIU Qing-fu1,2, SU Ni-er1, YAN Yong-zhi1, LI Feng-shi1, WANG Xiao-jiang3, ZHANG Qing1,4,5*   

  1. (1School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China; 2College of Forestry, Guizhou University, Guiyang 550025, China; 3Inner Mongolia Academy of Forestry Science, Hohhot 010010, China; 4Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, Ministry of Education of China, Hohhot 010021, China; 5Collaborative Innovation Center for Grassland Ecological Safety, Hohhot 010021, China).
  • Online:2022-01-10 Published:2022-06-10

摘要: 为探究毛乌素沙地不同飞播造林年限对土壤真菌群落结构的影响,以0、6、16、26和36年共5个飞播造林年限的土壤为对象,采用高通量测序技术检测土壤真菌,分析了其群落结构及多样性,并探讨了土壤因子的影响。结果表明:随着飞播年限的增加土壤真菌群落结构发生变化,除Simpson指数无明显变化外,真菌Alpha多样性指数、菌门和菌属种类以及特有的OTU数量均呈现先降低后增加的趋势;PCoA分析显示,不同年限的土壤真菌群落组成具有差异性,且飞播后期差异增大;Pearson相关性分析结果表明,影响土壤真菌Alpha多样性的主要土壤因子有硝态氮和有效磷。飞播造林有利于毛乌素沙地土壤真菌群落结构的改变和多样性的增加,也有利于优势菌群出现,研究结果对毛乌素沙地飞播造林植被恢复效果提供了一定的理论支持。

关键词: 沙地, 飞播年限, 高通量测序, 土壤真菌多样性

Abstract: We used highthroughput sequencing technology to assess the effects of multi-year aerial seeding (0, 6, 16, 26, and 36 years) on soil fungi community structure and diversity in the Mu Us Sandy Land, and examined the effects of soil factors on soil fungi community structure. The results showed that soil fungi community structure changed with aerial seeding duration. Except for the Simpson diversity index, fungi alpha diversity index, the number of phylum and genus,and the abundance of unique OTUs showed an initial decrease followed by an increasing trend. Principal coordinates analysis showed variations in soil fungi community composition at different aerial seeding years, with increasing differences along with the extension of aerial seeding duration. Results of Pearson correlation analysis showed that nitrate and available phosphorus concentrations were the main soil factors affecting the distribution of soil fungi. We conclude that aerial seeding afforestation improves soil fungi community structure and diversity by enhancing theemergence of dominant fungi groups in the Mu Us Sandy Land. Overall, our results provide support for the beneficial role of aerial seeding afforestation in vegetation restoration in the Mu Us Sandy Land.

Key words: sandy land, aerial seeding years, high-throughput sequencing, soil fungi diversity.