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<p>Agroforestry system is increasingly being recognized as a sustainable form of land use, its proven advantages including efficient nutrient acquisition; optimize soil microorganism composition; and improved utilization of land resources. However, not all agroforestry system constitute improvements, since there must be a positive interaction between the soil and plant used.&#xa0;In this study, Illumina high-throughput sequencing technology was utilized by us to find out the effects of poplar-<i>Cyperus esculentus</i> agroforestry system on soil nutrient conditions and microbial composition and diversity and the main drivers of soil microbial communities composition in agroforestry system was clarified at the same time.&#xa0;Poplar-<i>Cyperus esculentus</i> Agroforestry system increased the total nitrogen, available phosphorus, total phosphorus content, but decreased nitrate nitrogen content and changed the nitrogen and phosphorus ratio and pH of soil. In addition, agroforestry system optimized the soil microbial community composition and altered the relative abundance of dominant microbial in the soil. The main driving factors of soil microbial structure are soil pH and total nitrogen. Soil bacterial community structure was mainly influenced by soil pH, while soil fungal structure mainly affected by soil nitrate nitrogen content. However it is interesting that agroforestry system had no significant effect on microbial α diversity including Chao1 index, Simpson index, Pielou-e and observed species index.&#xa0;Poplar-<i>Cyperus esculentus</i> Agroforestry system is a viable planting pattern in Northeast China, it can improve soil nutrient level, regulate the composition of soil microbe communities by altering the relative abundance of dominant microbes.</p>

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The Effects of Poplar-Cyperus Esculentus Agroforestry System on Soil Nutrients and Microbial Communities in Northeast China

  • 期刊论文

  • 发表日期：

    2026年1月30日

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  • Wenxu Zhu,
  • Weixi Zhang,
  • Weiwei Gu,
  • Xinyao Cong,
  • Siqi Wu,
  • Zhongyi Pang,
  • Yanhui Peng,
  • Jian Qiu,
  • Zhuo sun,
  • Changjun Ding

摘要

Agroforestry system is increasingly being recognized as a sustainable form of land use, its proven advantages including efficient nutrient acquisition; optimize soil microorganism composition; and improved utilization of land resources. However, not all agroforestry system constitute improvements, since there must be a positive interaction between the soil and plant used. In this study, Illumina high-throughput sequencing technology was utilized by us to find out the effects of poplar-Cyperus esculentus agroforestry system on soil nutrient conditions and microbial composition and diversity and the main drivers of soil microbial communities composition in agroforestry system was clarified at the same time. Poplar-Cyperus esculentus Agroforestry system increased the total nitrogen, available phosphorus, total phosphorus content, but decreased nitrate nitrogen content and changed the nitrogen and phosphorus ratio and pH of soil. In addition, agroforestry system optimized the soil microbial community composition and altered the relative abundance of dominant microbial in the soil. The main driving factors of soil microbial structure are soil pH and total nitrogen. Soil bacterial community structure was mainly influenced by soil pH, while soil fungal structure mainly affected by soil nitrate nitrogen content. However it is interesting that agroforestry system had no significant effect on microbial α diversity including Chao1 index, Simpson index, Pielou-e and observed species index. Poplar-Cyperus esculentus Agroforestry system is a viable planting pattern in Northeast China, it can improve soil nutrient level, regulate the composition of soil microbe communities by altering the relative abundance of dominant microbes.