| 刘兰，秦宇，王朝清.三峡库区消落带云阳段土壤理化性质分析[J].广东农业科学,2014,41(9):76- |
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三峡库区消落带云阳段土壤理化性质分析 |
| Analysis on soil physico-chemical properties of fluctuationzone of Three Gorges reservoir area in Yunyang |
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| DOI： |
| 中文关键词: 三峡库区 消落带 土壤理化性质 |
| 英文关键词: Three Gorges reservoir area fluctuation zone soil physico-chemical properties |
| 基金项目:重庆市自然科学基金(200811A1A0120301) |
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| 摘要点击次数: 1677 |
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| 中文摘要: |
| 为了探讨三峡库区消落带土壤理化性质分布特征，对三峡库区消落带云阳段不同高程土壤的部分理化
指标进行测定和分析。结果表明院研究区域内土壤pH 值介于5~6 之间，呈弱酸性，为酸性紫色土；氧化还原电位均低
于200 mV，不利于植被生长；土壤的电导率介于0.2~0.5 ms/cm 之间，电导率和含水率均有随高程增加而逐渐降低的
趋势；表层土壤的有机质含量介于29.92~111.77 g/kg 之间，均值为79.40 g/kg，总磷含量介于0.2985~0.6623 g/kg，均
值为0.4782g/kg，其含量均有随高程增加逐渐增加的趋势；表层土壤总氮含量介于0.0540%~0.1605%之间，均值为
0.010%，其含量有随高程增加而逐渐降低的趋势。 |
| 英文摘要: |
| In order to investigate the distribution of soil physico-chemical properties of fluctuation zone of Three
Gorges reservoir area, several soil physico-chemical properties were performed under different elevation group in Yun
Yang. The result showed that pH value of the sampling soil was 5-6, so the soil was weakly acidic, called acid purple soil.
Oxiclation-reduction potential (ORP) of the sampling soil was below 200 mV, and the soil was not conducive to the growth
of plants. Electrical conductivity of sampling soil was 0.2-0.5 ms/cm. Electrical conductivity and moisture content reduced
gradually with the elevation increasing. The content of organic matter of surface soil was 29.92 -111.77 g/kg and the
average was 79.40g/kg. The content of total phosphorus (TP) of surface soil was 0.2985-0.6623 g/kg and the average was
0.4782 g/kg. The content of organic matter and TP increased gradually with the increase of elevation. The content of total
nitrogeh (TN) of surface soil was 0.0540%-0.1605%, and the average was 0.010%. The content of TN decreased gradually
with the increase of elevation. |
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