使用生物炭在金属化物污染的土壤中促进本土植物生长
Han Na Kim1, Keum Chul Yang2, Su Kyeong Shin1
1Department of Environmental and Biological Chemistry, Chungbuk National University, Cheongju, 28644, Republic of Korea.
Chemosphere
|January 21, 2025
概括
来自肥的生物炭通过增加pH值和减少,和的生物可用性来改善金属污染的土壤. 这增强了本土植物的生长和适合植物修复的能力,特别是Juncus decipiens.
科学领域:
- 环境科学 环境科学
- 土壤科学 土壤科学
- 生物修复是一种生物修复.
背景情况:
- 矿场土壤被金属化物污染,对植物生长和生态系统恢复构成重大挑战.
- 本土植物选择和土壤修改对于改善金属毒性和改善土壤条件至关重要.
研究的目的:
- 评估便衍生生物炭在修复 (As), (Cd) 和 (Pb) 污染土壤中的有效性.
- 评估生物炭处理对土壤特性和土著植物生长对植物修复的影响.
主要方法:
- 从便中提取的生物炭应用于污染了As,Cd和Pb的土壤.
- 测量土壤pH值和生物可用金属度.
- 评估本土植物生长,金属吸收和植物提取潜力.
主要成果:
- 生物炭处理显著增加了土壤pH值,并降低了As,Cd和Pb的生物可用性.
- 当地植物生长,特别是 As 和 Pb 污染的土壤,分别增加了 30.2% 和 91.3%.
- 纳卡伊 (Juncus decipiens (Buchenau) Nakai证明了耐受性和适合植物修复,在生物炭处理后金属吸收显著减少.
结论:
- 来自肥的生物炭是一种有效的土壤修补剂,用于减轻受污染的矿山土壤中的金属毒性.
- Juncus decipiens 是 As,Cd 和 Pb 污染土壤的植物修复的非常合适的候选者,生物炭进一步增强了它的生长和有效性.
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