| 中国半湿润、半干旱、干旱地区某些土壤的氧化还原状况 |
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| 引用本文： | 丁昌璞,李九玉.中国半湿润、半干旱、干旱地区某些土壤的氧化还原状况[J].干旱区研究,2006,23(4):515-520. |
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| 作者姓名： | 丁昌璞 李九玉 |
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| 作者单位： | 中国科学院,南京土壤研究所,江苏,南京,210008 |
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| 摘 要： | 用新的电化学方法原位考察了褐土、灰钙土、棕漠土、黑土、风沙土、灌淤土、盐土、碱土、亚高山草甸土、灰褐土、水稻土和旱地土壤的氧化还原状况.综合已有原位测定结果,地带性土壤的电位(Eh)由南向北的空间分异与其水平地带谱相应;亚高山草甸土和灰褐土的氧化还原状况随山体高度和植物群落而呈垂直分异趋势.比较了自然土壤、旱作土壤和水稻土的电位(Eh)差异和特征,水稻土中的氧化还原过程远较自然土壤和旱作土壤中者为甚,其强度和速度不逊于南方地区水稻土.新的电化学方法的原位测定贴近于自然.
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| 关 键 词： | 土壤 氧化还原 Eh地带性分异 原位测定 中国 |
| 文章编号： | 1001-4675（2006）04-0515-06 |
| 收稿时间： | 2005-09-06 |
| 修稿时间： | 2005-09-062006-05-12 |
Oxidation-reduction Regimes of some Soils in Simi-humid, Semiarid and Arid Areas of China |
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| DING Chang-pu,Li Jiu-yu.Oxidation-reduction Regimes of some Soils in Simi-humid, Semiarid and Arid Areas of China[J].Arid Zone Research,2006,23(4):515-520. |
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| Authors: | DING Chang-pu Li Jiu-yu |
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| Institution: | Nanjing Institute of Agrology, Chinese Academy of Sciences, Nanjing 210008, China |
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| Abstract: | Through investigation on the Eh values of cinnamon rail, sierozem, brown desert soil in situ with new electrochemical methods and summarization of the same results of laterite, red soil and yellow brown soil, a horizontal zonal variation of oxidation-reduction characteristics in semi-humid, semiarid and arid areas from south China to north China is revealed. The vertical variation of oxidation-reduction characteristics of alpine meadow soil and gray cinnamon soil with the change of plant communities with different heights in mountainous regions is analyzed; and the differences and characteristics of Eh values of natural soils, upland soils and paddy soils are compared. The results show that the oxidation-reduction processes in paddy soils are much stronger than those in natural soils and upland soils. Employment of new electrochemical methods for determining oxidation-reduction regimes in situ is closelv related to the original status of soils under natural conditions. |
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| Keywords: | soil north China oxidation-reduction regime zonality variation of Eh value determination in situ |
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