[1]白珊,倪幸,杨瑗羽,等.不同原材料生物炭对土壤重金属Cd、Zn的钝化作用[J].江苏农业学报,2021,(05):1199-1205.[doi:doi:10.3969/j.issn.1000-4440.2021.05.015]
　BAI Shan,NI Xing,YANG Yuan-yu,et al.Immobilization of soil cadmium and zinc by different raw material derived biochars[J].,2021,(05):1199-1205.[doi:doi:10.3969/j.issn.1000-4440.2021.05.015]
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不同原材料生物炭对土壤重金属Cd、Zn的钝化作用()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2021年05期
页码:
1199-1205
栏目:
耕作栽培·资源环境
出版日期:
2021-10-30

文章信息/Info

Title:
Immobilization of soil cadmium and zinc by different raw material derived biochars
作者:
白珊1; 倪幸1; 2; 杨瑗羽1; 方先芝1; 柳丹1; 叶正钱1
（1.浙江省土壤污染生物修复重点实验室，浙江农林大学，浙江杭州311300；2.浙江省金华市女埠街道办事处，浙江金华321100）
Author(s):
BAI Shan1; NI Xing1; 2; YANG Yuan-yu1; FANG Xian-zhi1; LIU Dan1; YE Zheng-qian1
(1.Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A＆F University, Hangzhou 311300, China;2.Nvbu Neighbourhood Office of Jinhua City in Zhejiang Province, Jinhua 321100, China)
关键词:
生物炭; 钝化修复; 镉; 锌
Keywords:
biochar; immobilization remediation; cadmium; zinc
分类号:
X53
DOI:
doi:10.3969/j.issn.1000-4440.2021.05.015
文献标志码:
A
摘要:
以质量分数0.1%、1.0%不同原料的生物炭（砻糠炭、木炭、竹炭）作为化学钝化修复材料，以空白土壤（CK）和钙镁磷肥作为对照，通过为期90 d的土壤培养试验，研究不同钝化材料及施用量对降低农田土壤重金属镉（Cd）和锌（Zn）污染风险的效果。结果表明，相同施用量的钙镁磷肥比生物炭更有利于酸性土壤改良；各处理中1.0%木炭对土壤有机质含量提升效果最好（P<0.05）；与空白对照相比，各处理对土壤Cd、Zn均表现出显著的钝化作用，相同施用量的木炭、砻糠炭比钙镁磷肥的效果更好，其中0.1%木炭钝化效果最佳。在相同施用量下，生物炭整体上更有利于降低土壤酸可提取态Cd、酸可提取态Zn含量，而钙镁磷肥更有利于增加残渣态Cd、残渣态Zn含量。
Abstract:
Biochars made from different materials (husk charcoal, wood charcoal, bamboo charcoal) with mass fractions of 0.1%, 1.0% were used as chemical immobilization materials, blank soil (CK) and calcium-magnesium phosphate fertilizer (CaMgP) were used as comparisons to investigate the effect of different biochar materials and their dosages on reducing the risk of cadmium (Cd) and zinc (Zn) pollutions in the farmland soil, by an incubation experiment for 90 d. The results showed that, CaMgP was more suitable for the improvement of acid soil than biochar under the same application amount. Treatment of 1.0% wood charcoal showed the best effect on increasing soil organic matter content among all the treatments (P<0.05). All the treatments showed significant immobilization effects on Cd and Zn in the soil compared with the blank control. The effects of wood charcoal, husk charcoal were more effective than CaMgP under the same dosages, among which 0.1% wood charcoal had the best immobilization effect. Biochar showed a better effect on reducing the acid extractable Cd and Zn contents in the soil with the same dosage as other materials, while CaMgP was more suitable for increasing residual Cd and Zn contents.

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备注/Memo

备注/Memo:
收稿日期：2021-02-03基金项目：浙江省重点研发计划项目（2018C03028）作者简介：白珊（1995-），女，四川德阳人，硕士研究生，主要从事污染控制与场地修复研究。（E-mail）289280107@qq.com通讯作者：叶正钱，（E-mail）yezhq@zafu.edu.cn
更新日期/Last Update: 2021-11-09