| 剑麻与石灰对铜污染土壤的修复 |
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| 引用本文： | 李士平,李福燕.剑麻与石灰对铜污染土壤的修复[J].中国农学通报,2007,23(8):444-444. |
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| 作者姓名： | 李士平 李福燕 |
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| 作者单位： | 1. 德州学院农学系,山东德州,253023
2. 中国热带农业科学院热带作物品种资源研究所,海南儋州,571737 |
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| 基金项目： | 科技部社会公益研究项目 |
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| 摘 要： | 通过盆栽试验研究了剑麻与石灰对铜污染土壤的修复，以海南砖红壤为供试土壤，在未污染土壤中加入重金属Cu，设高、中、低三个污染水平，平衡两周后在重金属污染土壤上施入不同浓度的石灰，而后植入对Cu有较大耐性的植物剑麻。120d后收获分析。研究了不同Cu污染水平和石灰处理水平下剑麻植株的长势及剑麻体内重金属含量，结果如下：Cu轻度污染土壤剑麻生长受影响不大，Cu中度污染土壤剑麻可以生长，当浓度达到2000 mg/kg 时剑麻受毒害死亡。加入石灰后剑麻的生物学产量有明显提高，Cu轻度污染土壤上石灰最佳施入量为3375kg/hm2，该条件下其剑麻移走的Cu量明显高于单种植剑麻的移走量，Cu中度污染土壤其最佳用量为4500kg/hm2，该组合下从土壤中移走的Cu几乎是单种植剑麻的两倍，在Cu重度污染的土壤中，随着石灰用量增加可促进剑麻的生长
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| 关 键 词： | 西部 西部 农村劳动力 转移 |
| 修稿时间： | 2007-06-012007-06-21 |
Study of Soil Remediation of Sisal and Lime on Cu-contaminated Soil |
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| Li shiping,Li Fuyan.Study of Soil Remediation of Sisal and Lime on Cu-contaminated Soil[J].Chinese Agricultural Science Bulletin,2007,23(8):444-444. |
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| Authors: | Li shiping Li Fuyan |
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| Institution: | 1.Agrictdtural Sciences, Dezhou University, Shandong 253023; 2 Tropical Crops Genetic Resources Institute, CA TAS, Danzhou, Hainan 571737 |
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| Abstract: | The tolerance and accumulation of Cu for sisal throw soil culture experiment. The examination were studied through the methods of adding Cu into unpolluted Granitic latosol in Hainan, after 2 weeks equilibrium, adding lime, planting the sisal on the polluted soil by Cu, we had studied Cu concentration, in different parts of sisal, The results were summarized as follows: The sisal growth responses were obviously different on soil Cu at varied levels from 0.0 to 2000 mg/kg. At Cu levels of 1000 mg/kg, the sisal could grow normally. The sisal growth was limited with the improvement of Cu contents in soils. At Cu levels of 2000mg/kg , the sisal could not grow and die. Meanwhile Cu concentration in shoots was higher than in roots. The results showed that adding lime could improve the growth of sisal effectively and inhibit the uptake of heavy metals on Cu polluted soil. When soil Cu was 500mg/kg, the best dosage was 3375kg/hm2. When soil Cu was 1000mg/kg the best dosage was 4500kg/ hm2, this combination of sisal and calcareousness could transplant Cu twice time more than that of only plant sisal. When soil Cu was 2000mg/kg adding calcareousness could effectively improve the growth of sisal. |
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| Keywords: | Cu |
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