植物和环境因素之间的相互作用决定了采矿区不同重新植被的斜坡上的拔出阻力
Zhang Chen1, Oumeng Qiao1, Yong Liu1
1Institute of Loess Plateau, Shanxi University, Taiyuan, 030006, Shanxi Province, China.
Journal of environmental management
|December 7, 2023
概括
植物根拔出阻力,对于矿山恢复中的坡度稳定性至关重要,受植物特征和土壤条件的影响. 斜坡梯度和地下生物质是所有斜坡类型的关键因素.
科学领域:
- 生态恢复 生态恢复
- 土壤科学 土壤科学
- 地质技术工程地质技术工程
背景情况:
- 植物根对于斜坡的稳定性至关重要,特别是在采矿区使用喷播种.
- 了解根拔出阻力及其环境驱动因素对于有效的生态恢复至关重要.
研究的目的:
- 研究不同坡度类型 (岩石,地质技术,土壤) 上植物根拔出阻力和环境因素之间的关系.
- 通过多组结构方程建模,识别影响根部拔出阻力的关键因素.
主要方法:
- 在三种不同的斜坡类型上研究了Artemisia gmelinii根的拔起阻力.
- 采用多组结构方程建模来分析根阻力和环境因素之间的相互作用.
- 评估因素包括植物的高度,生物质,土壤泥含量,营养水平和坡度梯度.
主要成果:
- 根部拔出阻力与植物生物质,高度,土壤泥和营养水平有正相关.
- 土壤斜坡表现出比岩石斜坡更高的根部拔出阻力.
- 斜坡梯度和地下生物质是所有斜坡类型中最有影响力的因素,其重要性根据斜坡特征而异.
结论:
- 在矿山恢复过程中,有效的斜坡保护需要考虑植物根和各种环境因素之间的复杂相互作用.
- 为最大限度地稳定土壤,将植物选择和恢复策略与特定的斜坡特性 (例如,梯度,土壤类型) 相适应至关重要.
- 这些发现为优化生态工程项目在退化的采矿环境中提供了宝贵的见解.
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