| 鼎湖山、尖峰岭和那大地区某些土壤的氧化还原状况 |
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| 引用本文： | 丁昌璞,吴又先.鼎湖山、尖峰岭和那大地区某些土壤的氧化还原状况[J].土壤学报,1991,28(3):295-301. |
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| 作者姓名： | 丁昌璞 吴又先 |
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| 作者单位： | 中国科学院南京土壤研究所, 210008;中国科学院南京土壤研究所, 210008 |
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| 摘 要： | 用电化学方法测定了鼎湖山、尖峰岭和那大地区某些土壤的氧化还原电位(强度因素)和还原性物质数量(容量因素)。自然林下土壤的氧化还原状况随植物群落的垂直带(谱)而呈规律性变化。其表层的Eh为400—560mV,较以下土层低80—220mV,还原性物质含量相当于0.5—3.6×10-3mol/L亚锰。经济林下土壤表层的Eh为490—570mV,较下层低50-100mV,还原性物质含量为0.1—1.36×10-3mol/L。水稻土表层的还原性物质含量达6.6×10-3mol/L,Eh为330mV,较下层低100mV。在还原性物质含量的对数值和Eh之间存在着良好的相关性,相关系数为-0.734**。本文对用电化学方法原位测定弱还原性土壤的氧化还原状况给予了评价,对氧化还原过程在红壤形成中的作用进行了讨论。
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| 关 键 词： | 土壤 氧化还原 |
OXIDATION-REDUCTION REGIME IN SOME SOILS OF DINGHU/JIANFENG MOUNTAINS AND NADA REGION |
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| Ding Changpu and Wu Youxian.OXIDATION-REDUCTION REGIME IN SOME SOILS OF DINGHU/JIANFENG MOUNTAINS AND NADA REGION[J].Acta Pedologica Sinica,1991,28(3):295-301. |
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| Authors: | Ding Changpu and Wu Youxian |
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| Institution: | Institute of Soil Science, Academia Sinica, Nanjing, 210008;Institute of Soil Science, Academia Sinica, Nanjing, 210008 |
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| Abstract: | The oxidation-reduction pomntials (intensity Factor) and reducing substances(capacity factor) in some soils of the Dinghu Mountain, the Jianfeng Mountain and the Nada region wire determined in situ with electrochemical methods.It was found that the oxidation-reduction regime in soils changed regularly with the variation of the vertical plant conuuunity. |
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