Soil ecosystem multifunctionality and growth characteristics of Leymus chinensis were enhanced after sandy soil amendment with vermicompost and soil conditioner in soil-plant-microbe system

作者：Feng Ai, Shimei Zheng, Chunmei Zeng, Binbin Li, Kaiyu Zhang, Chenchen Zhang, Qiang Li, Longfei Kang · 发表于：Environmental Technology & Innovation · 年份：2025 · DOI：10.1016/j.eti.2025.104226 · 被引用次数：9 · 研究领域：Moringa oleifera research and applications、Medicinal Plant Research、Seed and Plant Biochemistry

The vermicompost coupled with coal-based soil conditioner has the potential to improve soil physicochemical properties and enhance the growth of plants. It plays a crucial role in facilitating the biogeochemical cycling of elements and maintaining ecological balance in ecosystems. However, there is still insufficient evidence on the specific promotion mechanisms. To investigate the effects of coal-based soil conditioners and vermicompost application on sandy soil ecosystem multifunctionality and growth characteristics of Leymus chinensis (Trin.) Tzvel. ( L. chinensis ), a field trial was conducted in semi-arid region. Treatments include T1 (vermicompost: soil conditioner = 1:2), T2 (1:1), T3 (2:1), and control check (CK). Study results indicated that soil properties significantly improved when vermicompost and soil conditioner were applied at a 2:1 ratio. This treatment resulted in a substantial increase in soil moisture content, nutrients content and alkaline phosphatase (ALP) enzyme activity. Soil ALP in amendment treatments significantly increased by 61.54 % compared with CK treatment. Furthermore, the growth of L. chinensis was improved and biomass increased form 7.3–40.6 % than CK treatment. The α-diversity and abundance of soil microorganisms in amendment treatments were superior rather than CK treatment (p < 0.05). Moreover, soil microbial communities were primarily influenced by soil AvN, pH and AvK. The Chloroflexi was identified as the key factor when we compared be...