相关实验视频

Updated: Jan 8, 2026

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

不同的修正案在降低高地质背景土壤中的中的积累和增加的积累方面存在差异

Caixia Hu¹, Qian Qi¹, Zhongmin Dai¹

¹Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China.

Ecotoxicology and environmental safety

|December 18, 2025

概括

土壤修改可以改善丰富,污染的土壤中种植的水中的生物强化. 选择合适的修改品和水品种对于提高谷物和减少积累的安全和有效性至关重要.

科学领域:

农业科学农业科学
环境化学环境化学
土壤科学土壤科学

背景情况:

全球缺乏是一个健康问题,像大米这样的主食作物是生物强化的潜在载体.
类土通常含有高 (Cd) 含量和低 (Se) 生物可用性,阻碍了丰富的生产.
管理谷中的同时Cd积累和Se丰富对于食品安全和营养价值至关重要.

研究的目的:

评估四种土壤修改剂 (水合石灰,混合土壤修饰剂,生物炭,湿酸) 在修改Se和Cd生物可用性的有效性.
评估这些修正案对在受污染的田土壤中种植的米粒中的Se和Cd积累的影响.
确定土壤特性和大米品种特征对Se生物强化和Cd降低的成功的影响.

主要方法:

实地研究在三个地点进行,其中含有丰富的,Cd污染的水土壤.
应用四种土壤修改剂:水合石灰 (HL),混合土壤修复剂 (MSC),生物炭 (BC) 和湿酸 (HA).
在考虑土壤特性和大米品种的基础上,对大米粒,根和芽中的CaCl2可提取Cd,Se调动和Se/Cd含量进行分析.

主要成果:

化石灰和混合土壤修复剂在减少酸性土壤中可提取的Cd方面是有效的.
生物炭和湿酸促进了近乎中性pH的土壤中Se的调动,这些土壤含有较高的有机碳.
修正案增加了特定米品种的谷物Se (35-39%) 和减少了谷物Cd (45-76%),但减少了其他米品种的谷物Se.
对于水519品种,修改未能降低谷物Cd或增加Se,并且显著减少了谷物Se (29-47%).

结论:

土壤特性和米生理特征显著影响Se生物强化和Cd缓解的有效性.
有针对性的土壤修改和仔细的品种选择对于管理米系统中的Se和Cd生物可用性至关重要.
这项研究为优化污染环境中的丰米生产提供了科学基础.

关键词:

生物强化是一种生物强化.基因型变异的变化铁板是铁板的组成部分.这是一种Oryza sativa.类的水是类的.土壤的pH值是什么

更多相关视频

An Anaerobic Biosensor Assay for the Detection of Mercury and Cadmium

An Anaerobic Biosensor Assay for the Detection of Mercury and Cadmium

Published on: December 17, 2018

Monitoring Pedogenic Inorganic Carbon Accumulation Due to Weathering of Amended Silicate Minerals in Agricultural Soils.

Monitoring Pedogenic Inorganic Carbon Accumulation Due to Weathering of Amended Silicate Minerals in Agricultural Soils.

Published on: June 4, 2021

相关概念视频

The Periodic Table and Organismal Elements

The Periodic Table and Organismal Elements

Elements are the smallest units of matter that cannot be broken down further by chemical processes. There are 118 known elements, but not all of these are naturally occurring, and only a few of them are essential for life. Living matter is composed primarily of carbon, nitrogen, hydrogen, and oxygen, with smaller amounts of other elements like calcium, phosphorus, potassium, and sulfur. Other elements are also necessary for life but only in trace amounts.
Periodic Table Provides Information...

Responses to Salt Stress

Responses to Salt Stress

Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.

Adaptations that Reduce Water Loss

Adaptations that Reduce Water Loss

Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.