| 李援农.浑水灌溉禁锢土壤空气压力影响的研究[J].干旱地区农业研究,2003,(1):91~93 |
| 浑水灌溉禁锢土壤空气压力影响的研究 |
| Study on the effect of muddy irrigation on soil air pressure |
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| DOI：10.7606/j.issn.1000-7601.2003.01.21 |
| 中文关键词: 浑水入渗 泥沙含量 土壤空气阻力 |
| 英文关键词:muddy infiltration sand content soil air entrapment |
| 基金项目:国家自然基金资助项目(40071057) |
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| 中文摘要: |
| 在浑水灌溉及暴雨径流形成时,泥沙沉积所形成的致密层改变了土壤入渗的性状,土壤入渗能力将主要由表面土壤致密层控制。伴随入渗土壤中空气被禁锢,含沙量不同时,入渗过程中禁锢土壤空气压力对入渗的影响也不同。通过浑水入渗试验及入渗过程中影响机理分析,对考斯加可夫入渗模型进行修正,归结为浑水入渗泥沙含量直接影响入渗指数与入渗系数。 |
| 英文摘要: |
| During muddy irrigation and runoff caused by rainstorm, t he soil framework is changed by the layer of mud sediment which is closely compact ed. The soil infiltration ability is mainly mastered by closely grained soil. A long with the entrapment of soil air, the effect of entrapment on infiltration i s different when sand content is different. According to the test results of mud dy water infiltration and the analysis of influence mechanism in the course of i nfiltration, this paper revise the model of kosjkv, and indicates that the sand content of muddy water affects infiltration parameter and infiltration index rem arkably. |
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