西南林业大学学报2024，Vol.44Issue(11)：107-115,9.DOI:10.11929/j.swfu.202309023
农林基质生物炭联合香根草对铜镉铅复合污染土壤的修复研究
Remediation of Soil Contaminated by Copper,Cadmium and Lead Combined with Agroforestry Matrix Biochar and Vetiveria zizanioides
摘要
Abstract
The effects of adding rice husk biochar(DBC),coconut husk biochar(YBC)and corn stalk biochar(JBC)on the basic soil properties,the morphological distribution of Cu,Cd and Pb in soil,and the contents of Cu,Cd and Pb in different parts of Vetiveria zizanioides were studied by pot experiment.The results showed that both biochar application alone and biochar combined with V.zizanioides treatment increased soil pH value and organic matter content,and soil urease,sucrase and catalase activities increased to varying degrees.The total amount of Cu,Cd and Pb in soil decreased after biochar application alone or combined with V.zizanioides treatment.During 3 incubation periods,the proportion of available Cu and Pb in soil decreased,the proportion of residual Cu and Pb increased,and the proportion of residual Cd first decreased and then increased.The addition of biochar signific-antly reduced the accumulation of Cu,Pb and Cd in V.zizanioides root.Biochar is beneficial to the stabilization of Cu,Cd and Pb in the root of V.zizanioides and reduce the effective state of Cu,Cd and Pb in soil,and can be ap-plied to the remediation of soil contaminated by Cu,Cd and Pb.关键词
生物炭/香根草/重金属/污染/形态分布Key words
biochar/Vetiveria zizanioides/heavy metal/pollution/morphological distribution分类
农业科技引用本文复制引用
张晓凤,马珮瑶,邓志华,刘艳琴..农林基质生物炭联合香根草对铜镉铅复合污染土壤的修复研究[J].西南林业大学学报,2024,44(11):107-115,9.基金项目
云南省农业基础研究联合专项重点项目(202301BD070001-010)资助 （202301BD070001-010）
西南地区林业生物质资源高效利用国家林业和草原局重点实验室开放基金项目(2020-KF07)资助 （2020-KF07）
云南省山地农村生态环境演变与污染治理重点实验室开放基金项目(2020YB006)资助 （2020YB006）
云南省哲学科学规划科普项目(SKPJ202121)资助 （SKPJ202121）
云南省教育厅科学研究基金项目(2021J0163)资助. （2021J0163）
