| 三江并流区土壤氧化铁及其发生学意义研究 |
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| 引用本文： | 王立东,何忠俊,王晶.三江并流区土壤氧化铁及其发生学意义研究[J].广西农业科学,2009,40(7):864-868. |
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| 作者姓名： | 王立东 何忠俊 王晶 |
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| 作者单位： | 云南农业大学资源与环境学院,昆明,650201 |
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| 基金项目： | 云南省科技厅自然科学基金面上项目 |
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| 摘 要： | 采集云南省西部怒江、澜沧江、金沙江三江并流区8种不同类型土壤，进行土壤氧化铁及其发生学意义研究。结果表明，发育于第三纪古红土和玄武岩母质上的土壤全铁含量较高，铁游离度较低，活性铁和铁活化度也较低。不同类型土壤全铁含量由低到高依次为：高山草甸土〈紫色土〈黄棕壤〈棕色针叶林土〈棕壤〈红壤〈石灰土〈暗棕壤。棕壤、石灰土的土壤铁富集明显，处于富铁化阶段；红壤、紫色土、黄棕壤的土壤铝富集超过铁，铁的游离度很高，已进入富铝化阶段；暗棕壤、棕色针叶林土、高山草甸土的土壤风化发育尚停留在脱盐基的硅铝化阶段。
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| 关 键 词： | 三江并流区 土壤氧化铁 富集迁移 |
Ironoxidesinsoilof three parallel rivers (Nujiang,Lancangjiang,and Jinshajiang) area and its genealogical significance |
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| WANG Li-dong,HE Zhong-jun,WANG Jing.Ironoxidesinsoilof three parallel rivers (Nujiang,Lancangjiang,and Jinshajiang) area and its genealogical significance[J].Guangxi Agricultural Sciences,2009,40(7):864-868. |
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| Authors: | WANG Li-dong HE Zhong-jun WANG Jing |
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| Institution: | College of Resources and Environment;Yunnan Agricultural University;Kunming 650201;China |
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| Abstract: | Eight different zone soils were collected from three parallel rivers area of Nujiang, Lancangjiang and Jin-shajiang in Yunnan province to study the characteristic of iron oxides in soil and its pedogenic significance. The results showed that the contents of total iron was higher in the tertiary period ancient red soil and the basalt parent material soil, while the Fed/Fet of oxides, Feo and Feo/Fed were lower. For different types of soil, the content of Fet in soil was: alpine meadow soil
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| Keywords: | Three Parallel Rivers area iron oxides in soil enrichment and migration |
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