Cd污染稻田专用土壤调理剂修复效果评价(英文)
发布时间:2021-08-02 12:47
采用大田试验,以常规施肥为对照,并与施用石灰进行对比,对14个镉(Cd)污染稻田土壤专用调理剂进行效果分析与评价。结果表明,施用土壤调理剂对水稻产量无显著影响;土壤调理剂降低稻米Cd含量的效果相对稳定,但不同土壤调理剂降低稻米Cd含量的效果存在较大差异。早、晚稻施用土壤调理剂的稻米Cd含量降幅分别为22.65%~44.24%和15.20%~63.03%,降低水稻茎叶Cd含量的效果与之趋势相同。聚类分析结果表明,土壤调理剂主要分为三类:一类依靠提升土壤pH值,钝化土壤Cd活性,减少土壤Cd向水稻体内迁移转运,降低稻米Cd含量的效果较好;一类主要利用相关元素与镉产生的拮抗作用,抑制水稻茎秆中Cd向稻米的迁移和再分配,但降Cd效果一般;还有一类为中等稻米降Cd效果的产品类型,其作用机制可能是前两类的效果兼而有之,但稻米降Cd效果有待增强。
【文章来源】:Agricultural Science & Technology. 2019,20(03)
【文章页数】:8 页
【文章目录】:
1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Methods
2.3. Analytical method
3. Results and Analysis
3.1. Effects of soil conditioners on grain yields
3.2. Variances in rice grain Cd contents and straw Cd contents by soil conditioners
3.3. Effects of soil conditioners on Cd transloca-tion factor
3.4. Effects of soil conditioners on soil effective Cd content and soil pH
3.5. Correlations of rice grain Cd content with soil effective Cd content,soil p H and Cd translocation factor
3.6. Clustering analysis of soil conditioners
4. Discussion
5. Conclusion
【参考文献】:
期刊论文
[1]土壤重金属镉污染的生物修复技术研究进展[J]. 徐良将,张明礼,杨浩. 南京师大学报(自然科学版). 2011(01)
[2]重金属污染土壤原位钝化修复研究进展[J]. 王立群,罗磊,马义兵,韦东普,华珞. 应用生态学报. 2009(05)
[3]中东部地区生态环境现状调查报告[J]. 环境保护. 2003(08)
本文编号:3317590
【文章来源】:Agricultural Science & Technology. 2019,20(03)
【文章页数】:8 页
【文章目录】:
1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Methods
2.3. Analytical method
3. Results and Analysis
3.1. Effects of soil conditioners on grain yields
3.2. Variances in rice grain Cd contents and straw Cd contents by soil conditioners
3.3. Effects of soil conditioners on Cd transloca-tion factor
3.4. Effects of soil conditioners on soil effective Cd content and soil pH
3.5. Correlations of rice grain Cd content with soil effective Cd content,soil p H and Cd translocation factor
3.6. Clustering analysis of soil conditioners
4. Discussion
5. Conclusion
【参考文献】:
期刊论文
[1]土壤重金属镉污染的生物修复技术研究进展[J]. 徐良将,张明礼,杨浩. 南京师大学报(自然科学版). 2011(01)
[2]重金属污染土壤原位钝化修复研究进展[J]. 王立群,罗磊,马义兵,韦东普,华珞. 应用生态学报. 2009(05)
[3]中东部地区生态环境现状调查报告[J]. 环境保护. 2003(08)
本文编号:3317590
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