复合细菌注射剂的优化可增强高山草原中的土壤营养和细菌社区丰富度
Jiali Chai1, Xian Wang2, Tuo Yao1
1Pratacultural College, Gansu Agricultural University, Lanzhou, 730070, China.
Journal of environmental management
|May 17, 2025
概括
这项研究优化了使用Acinetobacter calcoaceticus,Pseudomonas piscium和Bacillus subtilis用于草原恢复的复合细菌注射剂. 优化的注射剂显著提高了退化高山草原的植物生长和土壤营养.
科学领域:
- 微生物学 微生物学
- 土壤科学 土壤科学
- 生态生态学 生态生态学
背景情况:
- 草原退化导致营养损失和生态系统功能受损.
- 有效和环保的恢复技术对于退化草原至关重要.
- 阿尔卑斯山草原由于其脆弱的生态系统而面临着独特的挑战.
研究的目的:
- 为了优化化合物细菌注射剂的发酵条件.
- 评估优化注射剂在恢复退化的高山草原中的有效性.
- 调查注射剂对植物生长和土壤特性的影响.
主要方法:
- 三种细菌菌株的分离和组合:阿奇内托巴克特卡尔科亚塞蒂克斯J1,Pseudomonas piscium J5和细菌细菌Y3.
- 优化发酵介质和条件 (可溶性粉,酵母提取物,KCl,pH,温度,时间,液体体积,注射比,旋转速度).
- 盆栽和田间实验评估化合物细菌注射剂 (G1) 对Elymus nutans生长和土壤特征的影响.
主要成果:
- 优化条件显著增加了可活性的细菌数量128.47倍.
- 复合性细菌注射剂 (G1) 显著改善了Elymus nutans的植物高度,根长,根表面积,体积和枝数.
- 现场应用增加了地表生物质,土壤有机物质,可用的,总和.
结论:
- 一种优化,环保的化合物细菌注射剂 (G1) 已开发用于退化高山草原的恢复.
- 接种剂通过降低土壤pH值和增加细菌社区丰富性来增强土壤营养循环.
- 这项研究为退化的高山草原提供了一种新的生物修复技术,与近乎自然的修复原则保持一致.
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