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| 生物炭在土壤中的老化及其吸附重金属的研究进展 |
| Biochar Aging in Soils and Its Influence on Adsorption of Heavy Metals：A Review |
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| DOI： |
| 中文关键词: 生物炭 老化 重金属 吸附 土壤 |
| 英文关键词: Biochar Aging Heavy metals Adsorption Soils |
| 基金项目:贵州省教育厅自然科学研究基金资助项目（黔教合KY字﹝2015﹞432号）；贵州省科技厅科技支撑计划基金资助项〖JP〗目（黔科合支撑﹝2019﹞2289号，黔科合支撑﹝2018﹞2776号）；〖JP〗贵州省科技厅基础研究计划基金资助项目（黔科合基础﹝2016﹞1112号） |
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| 中文摘要: |
| 综述了生物炭在土壤中的老化机制及主要影响因素方面的研究进展，指出生物炭的理化性质和结构表征在土壤中发生变化是其老化机制，生物炭的特性、土壤特性和环境条件等因素共同影响着生物炭的老化。总结了老化生物炭在土壤中对重金属吸附的影响，生物炭在老化过程中理化性质和结构表征的变化影响了生物炭-土壤体系对重金属的吸附，并且吸附能力因老化方式和重金属不同而存在差异。提出了开展多种重金属共存条件下老化生物炭的吸附效果和机理研究、针对生物炭田间实际老化过程对土壤重金属的吸附行为开展季节性和多年长期观测研究，以及对生物炭修复的重金属污染土壤在生物炭老化过程中可能造成的环境和健康风险开展综合、长期的跟踪研究与评估等展望。 |
| 英文摘要: |
| In this paper， the aging mechanisms of biochar in soils and its main influential factors were reviewed. It pointed out the change of physicochemical properties and structure characterization in soils were the mechanism of biochar aging. The characteristics of biochar and soil， and the environmental conditions had a combined effect on biochar aging. It summarized the influence of biochar aging on heavy metals absorption in soils. The change of physicochemical properties and structural characterization in the aging process affected biochar soil system on heavy metals adsorption， and the absorbability was different with various aging modes and heavy metals. It suggested on carrying out studies on adsorption effect and mechanism of biochar aging in coexistence of various heavy metals， seasonal and long term observation of biochars heavy metals adsorption behavior in field aging process， as well as comprehensive and long term tracking and assessment of possible environment and health risks of biochar aging in the remediation of heavy metals contaminated soils. |
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