| 绿洲农田表层掺砂、覆砂对土壤水分入渗的影响 |
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| 引用本文： | 宋日权,褚贵新,张瑞喜.绿洲农田表层掺砂、覆砂对土壤水分入渗的影响[J].石河子大学学报,2010,28(3):360-365. |
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| 作者姓名： | 宋日权 褚贵新 张瑞喜 |
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| 作者单位： | 石河子大学农学院农业资源与环境系/新疆兵团绿洲生态农业重点实验室,石河子,832003 |
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| 基金项目： | 国家自然科学基金项目，公益性行业(农业)科研专项，国家"973"计划前期研究专项 |
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| 摘 要： | 为认识绿洲农田表层掺砂和覆砂后层状土的入渗规律及农业生产实践提供依据,通过模拟试验研究了绿洲农田表层掺砂、覆砂对土壤水分入渗的影响。试验以不同掺砂量和覆砂厚度为影响因子,设置0%(对照)、25%、50%、75%、100%(纯砂)5个掺砂量处理,折合为覆砂厚度分别是0、1.7、3.6、5.7、8cm。结果表明:表层掺砂(除100%)能显著提高土壤入渗能力,并随着掺砂量(除100%)的增加而增加,且提高了掺砂层下部含水量;覆砂抑制了土壤入渗能力,且随着覆砂厚度增加抑制减弱;经Philip和Kostiakov入渗模型参数拟合和I200验证得出:Philip和Kostiakov入渗模型均有较高的实用性,其中Kostiakov入渗模型更佳。
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| 关 键 词： | 绿洲农田 入渗 掺砂 覆砂 土壤含水量 入渗模型 |
Effects of Sand Mixture and Sand Mulch on Soil Water Infiltration in the Surface of Oasis Field |
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| SONG Riquan,CHU Guixin,ZHANG Ruixi.Effects of Sand Mixture and Sand Mulch on Soil Water Infiltration in the Surface of Oasis Field[J].Journal of Shihezi University(Natural Science),2010,28(3):360-365. |
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| Authors: | SONG Riquan CHU Guixin ZHANG Ruixi |
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| Institution: | SONG Riquan,CHU Guixin,ZHANG Ruixi (Department of Agricultural Resources , Environment,College of Agriculture,Shihezi University/Key Laboratory of Oasis Eco-agriculture of Xinjiang Production , Construction Corps,Shihezi 832003,China) |
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| Abstract: | Simulated experiments were conducted to study the effects of sand mixture and sand mulch on soil water infiltration in the surface of oasis field.The mixing rate of sand with 0%(control),25%,50%,75%,100%(pure sand),corresponding to the mulching sand thickness of 0,1.7,3.6,5.7,8 cm were used in the experiment.The results showed that it was a significantly great effect on soil water infiltration capacity that it was mixed on the surface of soil(except 100%),the higher mixing rate of sand(except 100%),the stro... |
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| Keywords: | oasis field infiltration sand mixed sand mulch soil moisture content infiltration model |
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