实验模拟了在动态水循环下的盐化过程
Qinghua Wang1, Jiading Wang1, Shan Li1
1State Key Laboratory of Continental Dynamics, Northwest University, Xi'an, 710069, China.
Environmental research
|January 4, 2025
概括
盐溶液会影响的特性,影响其剪切强度和压缩能力. 长时间浸泡可以减缓的分解,为管理化提供了洞察力.
科学领域:
- 地质技术工程 地质技术工程
- 环境科学 环境科学
- 土壤科学 土壤科学
背景情况:
- 洛斯的盐化威胁到洛斯高原的生态稳定和可持续发展.
- 了解盐溶液对的影响对于有效的土地管理至关重要.
研究的目的:
- 为了研究盐溶液度,类型和浸泡时间对的物理机械性能的影响.
- 为了分析由于盐溶液相互作用而导致的微观结构变化.
主要方法:
- 使用定制制成的盐溶液-loess动态循环侵蚀设备进行浸泡测试.
- 进行各种测试以评估剪切强度,压缩能力,凝聚力和内部摩擦角度的变化.
- 检查了微观结构的演变和水-的化学相互作用.
主要成果:
- 切削强度最初下降,然后增加;压缩能力最初增加,然后随着盐溶液度 (SSC) 的增加而下降.
- 经过7天,凝聚力保持稳定,而内部摩擦角度增加了SSC.
- 盐溶液可以减缓的分解,更长的浸泡时间缩短了这种持续时间.
结论:
- 盐溶液相互作用,特别是粘土矿物与铁和离子的交换,是水-化学相互作用的关键.
- 这些发现为中国西北地区和类似地区的化的预防和治疗提供了指导.
- 该研究强调了盐化对的复杂影响,这对生态保护至关重要.
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