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Journal of Agriculture ›› 2026, Vol. 16 ›› Issue (3): 73-79.doi: 10.11923/j.issn.2095-4050.cjas2024-0222

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Analysis of Soil Structure and Microbial Community of Sugarcane National Geographical Indication Production Area in Taoshan of Ruian

YE Tingyun1(), MA Liya1, LU Shenggao2()   

  1. 1 Ruian Agricultural and Rural Development Center, Ruian, Zhejiang 325200
    2 College of Environmental and Resources, Zhejiang University, Hangzhou 310058
  • Received:2024-12-12 Revised:2025-05-14 Online:2026-03-20 Published:2026-03-19

Abstract:

The soil structure and microbial community characteristics of long-term sugarcane cultivation in the national geographical indication agricultural product origin of ‘Taoshan sugarcane’ in Ruian, Zhejiang Province were analyzed. This project used wet-screening method to determine the composition and stability of soil water-stable aggregates, and Miseq high-throughput sequencing was adopted to measure soil microbial community, and then the relationship between soil structure and microbial abundance and diversity was explored. Based on the content of >0.25 mm water-stable aggregate, mean weight diameter (MWD) and geometric mean diameter (GMD) of aggregate, the structural stability of sugarcane soil was divided into three levels: high (HS), medium (MS) and low (LS). The pH and organic matter content of HS soil were significantly higher than those of MS and LS soils, while there was no significant difference in available phosphorus, hydrolyzed nitrogen and available potassium among soils with different structures. The HS soil had significantly higher microbial carbon (MBC) and nitrogen (MBN) content relative to MS and LS soils. The analysis of microbial community structure showed that soil structure significantly affected the OTU quantity, alpha diversity index, and community composition of microorganisms. The HS soil with higher contents of stable aggregate and organic matter provided a suitable microbial habitat for microorganisms. Soil structure also affected the abundance of dominant microbial genera. Redundancy analysis (RDA) showed that soil structure affected the abundance of dominant microbial genera by altering soil physicochemical properties. A good soil structure could provide a more suitable habitat for microorganisms. The research results had preliminarily revealed the soil structure and microbial community characteristics of long-term sugarcane plantation soil, as well as their interrelationships. This provided a reference for studying the regulation of sugarcane soil structure, optimization of microbial diversity and function in order to enhance soil health function. This result also provided scientific basis for the management and sustainable utilization of long-term sugarcane plantation soil.

Key words: soil structure, soil aggregate stability, microbial community structure, sugarcane, national geographical indication production area