| 黄河三角洲滨海盐渍土饱和导水率的研究 |
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| 引用本文： | 白冰,陈效民,秦淑平.黄河三角洲滨海盐渍土饱和导水率的研究[J].土壤通报,2005,36(3):321-323. |
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| 作者姓名： | 白冰 陈效民 秦淑平 |
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| 作者单位： | 南京农业大学,资源与环境科学学院,江苏,南京,210095 |
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| 基金项目： | 国家高技术研究发展计划(863计划) (2002AA2Z4061) |
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| 摘 要： | 通过对黄河三角洲滨海盐渍土饱和导水率的研究, 结果表明: 原状土的饱和导水率随着土壤剖面深度的增加呈现出表土层高、中间土层低、底土层又升高的趋势; 扰动土与原状土的饱和导水率差异较大, 土壤饱和导水率与土壤容重呈负相关、而与孔隙度、结构系数、团聚度等均呈正相关。原状土的饱和导水率能反映田间水分运动以及孔隙状况, 对研究土壤水量平衡和水土保持有重要的意义。扰动土的饱和导水率对于土壤理化性质的理论研究有一定参考价值。
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| 关 键 词： | 土壤饱和导水率 影响因素 黄河三角洲 |
| 文章编号： | 0564-3945(2005)03-0321-03 |
| 修稿时间： | 2004年1月29日 |
Saturated Hydraulic Conductivity of Seashore Saline Soil in Yellow River Delta |
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| BAI Bing,CHEN Xiao-min,QIN Shu-ping.Saturated Hydraulic Conductivity of Seashore Saline Soil in Yellow River Delta[J].Chinese Journal of Soil Science,2005,36(3):321-323. |
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| Authors: | BAI Bing CHEN Xiao-min QIN Shu-ping |
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| Abstract: | The saturated hydraulic conductivities of seashore saline in Yellow River Delta were studied. The results were as follows.Firstly, the saturated hydraulic conductivities in the soil changed with depth. Higher saturated hydraulic conductivities occurred in top layers and lower ones in middle layers in the soil profiles. Secondly, the saturated hydraulic conductivities were obvious different between undisturbed soils and disturbed soil. It was found that bulk density was negative correlation with soil saturated hydraulic conductivities, porosity, structure coefficient, and aggregate degree were positive correlation with soil hydraulic conductivities. The saturated hydraulic conductivities were good indicators for water movement and size of pores in undisturbed soils. And it was important to study soil water conservation. The disturbed soil saturated hydraulic conductivities were useful parameters for studying the theory of some physical and chemical properties of soil. |
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| Keywords: | Soil saturated hydraulic conductivity Affective factors Yellow River Delta |
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