植被恢复对采矿后土壤中多重金属元素度的影响
Qiqi Li1, Chaoxiang Yuan1, Qiqian Wu2
1Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, School of Geographical Sciences, Fujian Normal University, Fuzhou, 350007, China.
Journal of environmental management
|September 30, 2023
概括
在开采后的矿区恢复植被,可以增加像和这样的必需营养金属. 然而,它不会显著改变有毒金属度,有助于土壤生态恢复工作.
科学领域:
- 环境科学 环境科学
- 土壤科学 土壤科学
- 生态生态学 生态生态学
背景情况:
- 植被恢复对于恢复开采后的土壤至关重要.
- 需要对植被恢复对土壤金属元素的影响进行全球定量评估.
研究的目的:
- 进行一项元分析,评估植被恢复对17种土壤金属元素的效应,在采矿后的地区.
- 确定影响这些效应的因素.
主要方法:
- 来自137个出版物的2308个配对观察结果的元分析.
- 17种金属元素 (K,AK,Ca,Na,Mg,Fe,Mn,Zn,Cu,Al,Cr,Co,Ni,Cd,Sb,Hg,Pb) 的估计度.这些元素的含量包括:
- 研究了植被类型,土壤深度,叶类型,度,海拔,恢复年,气候和土壤初始性能的影响.
主要成果:
- 植被恢复显著增加了K,AK,Ca,Mg和Co的度.
- 对Na,Fe,Mn,Zn,Cu,Al,Cr,Ni,Cd,Sb,Hg和Pb没有显著的影响.
- 植被类型的影响最小;土壤深度和叶类型影响了特定的金属反应.
- 度,海拔,修复年份,气候和初始的土壤特性起到了调节者的作用.
结论:
- 植被恢复对开采后土壤中营养金属度产生积极影响.
- 有毒金属度在很大程度上不受恢复工作的影响.
- 研究结果为开采地区的土壤生态系统恢复提供了宝贵的见解.
相关概念视频
00:46Bioremediation
18.8K
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.
18.8K
01:13Voltammetry: Stripping Methods
272
Anodic Stripping Voltammetry (ASV), Cathodic Stripping Voltammetry (CSV), and Adsorptive Stripping Voltammetry (AdSV) are electrochemical techniques used to determine trace amounts of analytes in solution. These methods involve applying a potential to an electrode and measuring the resulting current.
Anodic Stripping Voltammetry (ASV)
ASV is used to determine metals and metalloids at trace levels. It involves two steps: deposition and stripping. First, a negative potential is applied to the...
Anodic Stripping Voltammetry (ASV)
ASV is used to determine metals and metalloids at trace levels. It involves two steps: deposition and stripping. First, a negative potential is applied to the...
272
00:56Extraction: Advanced Methods
481
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...
481