相关实验视频
Updated: Sep 15, 2025

13:23
A Protocol for Collecting and Constructing Soil Core Lysimeters
Published on: June 6, 2016
11.8K
应用家禽垃圾和优惠流量对牧场金属损失的影响
Kritika Malhotra1, Jasmeet Lamba2, Thomas R Way3
1University of Southern California, 3454 Trousdale Pkwy, CAS 200, Los Angeles, CA, 90089, United States.
Journal of environmental management
|July 13, 2025
概括
对牧场的家禽垃圾应用增加了地下金属漏,特别是. 虽然大多数金属损失并没有显著增加,但土壤中和等金属的积累需要进一步研究可持续的土地管理.
科学领域:
- 环境科学 环境科学
- 土壤科学 土壤科学
- 农业学是一种农业学.
背景情况:
- 美国东南部的家禽垃圾是一种常见的有机肥料.
- 它在牧场上的应用可能会导致金属漏,但数据很少.
- 偏好的流道可以影响非耕地土壤中的金属流动性.
研究的目的:
- 量化来自家禽 litter-amended土壤的地下金属损失.
- 评估优惠流在金属运输中的作用.
- 评估家禽垃圾对高草地金属浸的影响.
主要方法:
- 在未被干扰的土壤柱上进行降雨模拟.
- 对液金属度和化物突破曲线的分析.
- 顺序提取以确定土壤和垃圾中的金属分数.
主要成果:
- 偏好的流量是显而易见的,高不运动的孔水分数.
- ,,,和的液度在垃圾应用时更高.
- 漂液显著增加,但其他金属漂液一般没有,尽管积累.
结论:
- 在家禽垃圾应用可以提高地下金属的流动性,特别是.
- 土壤中和等金属的积累是令人担忧的.
- 需要进一步研究安全和可持续的家禽垃圾管理,以防止土壤污染.
相关概念视频
Laminar Flow
1.2K
Laminar flow represents a smooth, orderly fluid motion where particles move along parallel paths, resulting in minimal mixing between layers. Streamlined particle paths characterize this flow regime and occur under conditions where viscous forces dominate over inertial forces. The distinction between laminar, transitional, and turbulent flow is primarily determined by the Reynolds number, a dimensionless quantity calculated as:
1.2K
Extraction: Advanced Methods
541
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
541

