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基于社区的多金属土壤植物修复:过度产量效应和微生物调解

Renzhi Xu¹, Zihan Zhou¹, Chenrun Wu¹

¹College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541006, PR China.

Journal of environmental management

|November 14, 2025

概括

多样化的植物群体通过有效提取潜在有毒元素 (PTE) 来增强土壤修复. 与Medicago sativa和Parthenocissus semicordata交叉种植Pteris vittata显著增加了PTE积累,提供了一个新的现场生物修复策略.

科学领域:

生态生态学生态生态学
环境科学环境科学
生物修复是一种生物修复.

背景情况:

生态利基理论和压力梯度假设表明,多样化的植物群体可以提高生产力和有毒元素的提取.
为了测试这一假设,选择了超积聚植物 (Pteris vittata),护士植物 (Medicago sativa) 和先驱植物 (Parthenocissus semicordata).
,,,铜和等潜在有毒元素 (PTE) 构成了环境挑战.

研究的目的:

研究植物群落中的生态效应和物种间关系,以在现场修复受PTE污染的土壤.
评估单一种植与交叉种植对PTE积累和植物修复效率的影响.
探索树根球微生物在调解植物修复结果中的作用.

主要方法:

建立了七种治疗方法:单种 (E,M,P) 和交叉作物组合 (EM,EP,MP,EMP).
在地面上测量PTE积累和生物量.
使用分子技术分析了树枝球微生物社区的结构和丰富性.
使用结构方程建模来理解生态因素,微生物群落和修复效率之间的关系.

主要成果:

所有交叉种植的社区都表现出过度产量效应,PTE积累率高于单一种植.
在EM (Pteris vittata + Medicago sativa) 群体中,表现出最显著的过度屈服和最高的PTE积累,特别是对于和.
参与营养循环的树叶球微生物群落在杂交作物系统中更为丰富,特别是EM,EP和EMP.
微生物群落结构和土壤PTE水平调解了植物修复效率.

结论:

过度蓄积器,护士植物和先驱植物的交叉种植是一种有前途的策略,可以增强PTEs的现场土壤整治.
由于互补效应和高PTE积累,EM组合表现出卓越的性能.
树枝球微生物群落在植物修复策略的成功中发挥着至关重要的作用.

关键词:

这是一种重金属,重金属.微生物微生物过度回报的效应植物疗法 (Phytoremediation) 是一种植物疗法.结构方程模型的结构方程模型.

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