相关实验视频

Updated: Jun 21, 2025

Watershed Planning within a Quantitative Scenario Analysis Framework

Watershed Planning within a Quantitative Scenario Analysis Framework

Published on: July 24, 2016

潜在有毒元素在煤矿破坏下的裂中的分布和转化农田中的煤矿干扰

Yin Lu¹, Xin Xiao¹, Yan Liang²

¹School of Environment Science and Spatial Informatics, China University of Mining and Technology, 1 Daxue Road, Xuzhou, 221116, Jiangsu, China.

Environmental geochemistry and health

|July 13, 2024

概括

煤矿沉降改变了土壤的特性,影响了潜在有毒元素 (PTEs) 的分布. 移动的PTE分量集中在裂附近,而不太移动的分量则在更远的地方,从中带来适度的生态风险.

科学领域:

环境科学环境科学
地质化学地质化学
土壤科学土壤科学

背景情况:

煤矿沉降造成地面裂,改变了土壤的物理和化学特性.
对于煤矿沉降如何影响农田土壤中潜在有毒元素 (PTE) 分数的理解有限.

研究的目的:

调查受煤矿沉降影响的农田土壤中PTE分量的生态风险和空间分布.
确定影响地面裂附近PTE分数分布的主要因素.

主要方法:

从垂直裂收集了19个不同深度和水平距离 (0-5m) 的土壤档案.
使用BCR提取分化来确定Cr,Ni,Cu,Zn,As,Cd和Pb的地球化学分数和总度.
分析了PTE的生态风险,空间分布和影响因素.

主要成果:

在68.7%的样本中, (Cd) 表示适度的生态风险.
Cr,Ni,Cu,Zn,As和Pb主要以低流动性的残基 (>60%) 呈现.
移动Cd分数 (酸溶和可还原) 在表面土壤中高,集中在裂附近,受可用的的影响.
在裂 (2-5m) 之外发现了PTE的较少移动分数,受粘土和可用的的影响.

结论:

煤矿沉降显著改变了农田土壤中PTE的空间分布和地化学分数.
移动PTE分数积聚在裂附近,造成局部生态风险,特别是.
土壤的特性,如可用的,粘土含量和可用的,在控制PTE分量的流动性和分布方面发挥着至关重要的作用.

关键词:

卡克拉克是什么意思?生态风险生态风险分数的分数是分数的分数.可能有毒的元素.土壤的特性土壤的特性

更多相关视频

Two-Dimensional Visualization and Quantification of Labile, Inorganic Plant Nutrients and Contaminants in Soil

Two-Dimensional Visualization and Quantification of Labile, Inorganic Plant Nutrients and Contaminants in Soil

Published on: September 1, 2020

A Method to Preserve Wetland Roots and Rhizospheres for Elemental Imaging

A Method to Preserve Wetland Roots and Rhizospheres for Elemental Imaging

Published on: February 15, 2021

相关概念视频

Types of Toxins

Types of Toxins

Humans continually engage with an environment rich in potentially harmful chemicals. These are introduced to our bodies through inhalation, ingestion, or skin contact. These chemicals exist in various forms, such as air and environmental pollutants, agricultural chemicals, organic solvents, and heavy metals.
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...

Bioremediation

Bioremediation

Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.