Available information on interaction mechanisms between soil nutrient stoichiometry and microbial communities associated with soil aggregate structure in restored wetlands remains limited. As such, this study investigated water-stable aggregate structure using wet-sieving method and scanning electron microscope (SEM) in restored wetlands with a restoration duration of 0, 1, 2, 3, 5, 13 or 19 years, and their internal nutrient stoichiometry and microbial communities (phospholipid fatty acid analysis, PLFAs). The results showed that soil aggregate structure tended to be stable from the fifth restoration year. In the restored wetlands, General bacteria, Gram-positive bacteria (G⁺), and Gram-negative bacteria (G⁻) were the dominant components of soil microorganisms, which tented to condense in coarse-aggregates. The carbon-to-phosphorus (C:P) and nitrogen-to-phosphorus (N:P) ratios were higher in coarse-aggregates since C and N benefit from the physical protection. Redundancy analysis (RDA) results indicated that C:N ratio was primary environmental factors controlling the distribution of soil microbial communities. In the Sanjiang Plain, the soil organic carbon (SOC) decomposition was lower, and N was the primary nutrient limiting wetland restoration quality.

在恢复的湿地中，土壤养分化学计量与微生物群落与土壤团聚体结构相关的相互作用机理的可用信息仍然有限。因此，本研究使用湿筛法和扫描电子显微镜（SEM）研究了恢复时间为0、1、2、3、5、13或19年的恢复湿地中的水稳定集料结构及其内部养分化学计量和微生物群落（磷脂脂肪酸分析，PLFA）。结果表明，从恢复的第五年开始，土壤团聚体结构趋于稳定。在恢复的湿地，一般细菌，革兰氏阳性菌（G ⁺），和革兰氏阴性菌（G ^-）是土壤微生物的主要组成部分，在粗骨料中会凝结凝结。粗骨料中的碳磷比（C：P）和氮磷比（N：P）更高，因为碳和氮得益于物理保护。冗余分析（RDA）结果表明，C：N比是控制土壤微生物群落分布的主要环境因素。在三江平原，土壤有机碳（SOC）分解较低，而氮是限制湿地恢复的主要养分质量。