宽的沿海区域通过减少地表排水和沉积物中的微量元素来抑制采矿荒地中的微量元素损失
Jiangdi Deng1, Zuran Li2, Bo Li3
1Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China.
Toxics
|April 26, 2024
概括
采矿荒地中的更广泛的河岸区域显著减少了土壤和微量元素的损失. 一个10米区域减少了总损失高达85%,证明有效的环境风险控制.
科学领域:
- 环境科学 环境科学
- 土壤科学 土壤科学
- 生态毒理学 生态毒理学
背景情况:
- 矿山荒地中的微量元素扩散是一个重大的环境问题.
- 植被恢复是控制微量元素迁移的关键.
- 缺乏有效的河岸区域宽度在采矿荒地中的实地证据.
研究的目的:
- 确定河岸区域的有效宽度,以减轻矿山荒地中的微量元素损失.
- 量化不同沿海区域宽度下的土壤和微量元素 (,铜,,,) 损失.
- 评估河岸区域对流水和沉积物度的影响.
主要方法:
- 使用*Rhododendron simsii*/*Lolium perenne* L. 在矿荒地建造了三个河边区域宽度 (5米,7.5米,10米).
- 使用石棉来防止地块之间的水文干扰.
- 收集并分析流水和沉积物的微量元素含量.
主要成果:
- 超过90%的微量元素在低植被覆盖面和大雨期间在沉积物中丢失.
- 与5米区域相比,10米的河岸区域减少了69-85%的总微量元素损失.
- 10米区域显著降低了排水,沉积物和微量元素度,特别是在大雨期间.
结论:
- 较宽的河岸区域增强了水的透,过了土壤颗粒,减少了侵蚀和微量元素的损失.
- 沿海区是后开采地区有效的环境管理工具,以减轻风险.
- 需要进一步的研究来确定沿海地区的长期影响.
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