| 生物炭配施微肥对菜园土壤有效态重金属含量的影响 |
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| 引用本文： | 汪亚会,覃雨虹,马彦蓉,尚怡静,黎华寿,陈桂葵.生物炭配施微肥对菜园土壤有效态重金属含量的影响[J].华南农业大学学报,2018,39(5):18-24. |
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| 作者姓名： | 汪亚会 覃雨虹 马彦蓉 尚怡静 黎华寿 陈桂葵 |
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| 作者单位： | 华南农业大学资源环境学院/农业部华南热带农业环境重点实验室/广东省现代生态农业与循环农业工程技术研究中心 |
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| 基金项目： | 国家重点研发计划（2017YFD0801500）；广东省科技计划项目（2016A020210036） |
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| 摘 要： | 【目的】研究生物炭配施微肥对土壤有效态重金属含量的影响。【方法】采用室内模拟试验,向重金属污染的菜园土壤中添加皇竹草生物炭、咖啡渣生物炭、花生壳生物炭和微肥(铁肥、锰肥和硅肥),分别在处理14和28 d时测定土壤中5种重金属(Cu、Pb、Zn、Cd和Ni)的有效态含量。【结果】添加了生物炭或微肥土壤中的有效态重金属含量均比对照组低。其中单一钝化剂处理中,皇竹草生物炭和硅肥的钝化效果较好。在复配试验中,皇竹草生物炭+铁肥对土壤重金属Cu、Pb和Cd的钝化效果较好,处理14 d后其有效态含量的降幅分别达32.94%、31.26%和21.21%,对土壤有效态Zn含量的降幅为6.82%,但对土壤Ni的钝化效果不明显;处理14 d后咖啡渣生物炭+铁肥对土壤重金属Ni和Zn有效态含量的降幅也分别达22.64%和10.35%,钝化效果显著;处理28 d后,花生壳生物炭+铁肥对土壤重金属Cu钝化效果最好,有效态Cu含量降幅达49.06%;咖啡渣生物炭+硅肥对土壤Ni和Zn钝化效果最好,有效态含量降幅分别达23.73%和9.72%。【结论】生物炭配施微肥对土壤有效态重金属含量降低的效果优于单施生物炭或单施微肥,其中,皇竹草生物炭配施铁肥可用于土壤重金属Cu、Pb、Zn和Cd复合污染的钝化。
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| 关 键 词： | 生物炭 微肥 菜园土壤 有效态重金属 钝化 |
| 收稿时间： | 2018/1/9 0:00:00 |
Influence of biochar combining with micro-fertilizer on available heavy metal content in vegetable garden soil |
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| WANG Yahui,QIN Yuhong,MA Yanrong,SHANG Yijing,LI Huashou and CHEN Guikui.Influence of biochar combining with micro-fertilizer on available heavy metal content in vegetable garden soil[J].Journal of South China Agricultural University,2018,39(5):18-24. |
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| Authors: | WANG Yahui QIN Yuhong MA Yanrong SHANG Yijing LI Huashou and CHEN Guikui |
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| Institution: | College of Natural Resources and Environment, South China Agricultural University/Key Laboratory of Tropical Agro-Environment in South China, Ministry of Agriculture/Guangdong Provincial Engineering Technology Research Center of Modern Eco-Agriculture and Circular Agriculture, Guangzhou 510642, China,College of Natural Resources and Environment, South China Agricultural University/Key Laboratory of Tropical Agro-Environment in South China, Ministry of Agriculture/Guangdong Provincial Engineering Technology Research Center of Modern Eco-Agriculture and Circular Agriculture, Guangzhou 510642, China,College of Natural Resources and Environment, South China Agricultural University/Key Laboratory of Tropical Agro-Environment in South China, Ministry of Agriculture/Guangdong Provincial Engineering Technology Research Center of Modern Eco-Agriculture and Circular Agriculture, Guangzhou 510642, China,College of Natural Resources and Environment, South China Agricultural University/Key Laboratory of Tropical Agro-Environment in South China, Ministry of Agriculture/Guangdong Provincial Engineering Technology Research Center of Modern Eco-Agriculture and Circular Agriculture, Guangzhou 510642, China,College of Natural Resources and Environment, South China Agricultural University/Key Laboratory of Tropical Agro-Environment in South China, Ministry of Agriculture/Guangdong Provincial Engineering Technology Research Center of Modern Eco-Agriculture and Circular Agriculture, Guangzhou 510642, China and College of Natural Resources and Environment, South China Agricultural University/Key Laboratory of Tropical Agro-Environment in South China, Ministry of Agriculture/Guangdong Provincial Engineering Technology Research Center of Modern Eco-Agriculture and Circular Agriculture, Guangzhou 510642, China |
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| Abstract: | |
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| Keywords: | biochar micro-fertilizer vegetable soil available heavy metal deactivation |
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