A Fungi-Driven Sustainable Circular Model Restores Saline Coastal Soils and Boosts Farm Returns

文献类型： 外文期刊

第一作者： Bian, Fei

作者： Bian, Fei;Wang, Yonghui;Ren, Haixia;Wan, Luzhang;Guo, Huidong;Jia, Yuxue;Ren, Pengfei;Bian, Fei;Wang, Yonghui;Ren, Haixia;Wan, Luzhang;Guo, Huidong;Jia, Yuxue;Ren, Pengfei;Wang, Yonghui;Ren, Haixia;Wan, Luzhang;Guo, Huidong;Jia, Yuxue;Ren, Pengfei;Wang, Yonghui;Ren, Haixia;Wan, Luzhang;Guo, Huidong;Jia, Yuxue;Ren, Pengfei;Liu, Xia;Ning, Fanhua;Shi, Guojun

作者机构：

关键词： circular agriculture; edible fungi; saline-alkaline soil; spent mushroom substrate; microbial community; economic benefits

期刊名称：HORTICULTURAE （ 影响因子：3.0； 五年影响因子：3.2 ）

ISSN：

年卷期： 2025 年 11 卷 7 期

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收录情况： SCI

摘要： Agricultural production in the saline-alkaline soils of the Yellow River Delta faces persistent challenges in waste recycling and soil improvement. We developed a three-stage circular agriculture model integrating "crop straw-edible mushrooms-vegetables," enabling simultaneous waste utilization and soil remediation within one year (two mushroom and two vegetable cycles annually). Crop straw was first used to cultivate Pleurotus eryngii, achieving 80% biological efficiency and reducing substrate costs by similar to 36.3%. The spent mushroom substrate (SMS) was then reused for Ganoderma lucidum and vegetable cultivation, maximizing the resource efficiency. SMS application significantly improved soil properties: organic matter increased 11-fold (from 14.8 to 162.78 g/kg) and pH decreased from 8.34 to similar to 6.75. The available phosphorus and potassium contents increased several-fold compared to untreated soil. Metagenomic analysis showed the enrichment of beneficial decomposer bacteria (Hyphomicrobiales, Burkholderiales, and Streptomyces) and functional genes involved in glyoxylate metabolism, nitrogen cycling, and lignocellulose degradation. These changes shifted the microbial community from a stress-tolerant to a nutrient-cycling profile. The vegetable yield and quality improved markedly: cabbage and cauliflower yields increased by 34-38%, and the tomato lycopene content rose by 179%. Economically, the system generated 1,695,000-1,962,881.4 CNY per hectare annually and reduced fertilizer costs by similar to 450,000 CNY per hectare. This mushroom-vegetable rotation addresses ecological bottlenecks in saline-alkaline lands through lignin-driven carbon release, organic acid-mediated pH reduction, and actinomycete-dominated decomposition, offering a sustainable agricultural strategy for coastal regions.

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