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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (13): 239-242.

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

秸秆覆盖下的土壤水热运移

王兆伟 王春堂 郝卫平 龚道枝 张新红   

  • 收稿日期:2010-03-09 修回日期:2010-03-30 出版日期:2010-07-05 发布日期:2010-07-05
  • 基金资助:

    国家“863”课题-降水资源高效转化利用技术研究;国家科技支撑计划课题-环境协调型旱作节水农作制度研究

Simulation on Coupled Movement of Soil Water and Heat with Straw Mulching

  • Received:2010-03-09 Revised:2010-03-30 Online:2010-07-05 Published:2010-07-05

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摘要：

土壤水热耦合运移的数值模拟研究是在二十世纪五十年代在等温水分运动模型的基础上发展起来的，随着秸秆覆盖节水技术的发展，秸秆覆盖下水热耦合运移的数值模型得到不断研究和发展。秸秆覆盖下水热耦合数值模拟由于考虑了覆盖层对水热运移的影响变得复杂，文中综述了土壤水热运移模拟到秸秆覆盖下水热运移数值模拟的发展过程，常用的推求土壤参数的经验公式和秸秆覆盖下土壤水热耦合的上边界条件的确定方法。

关键词: 钼酸铵法, 钼酸铵法, 过氧化氢酶, 水稻

Abstract:

The soil water and heat coupling numerical simulation are developed on the basis of isothermal moisture movement model in the 1950s. Along with the development of straw mulching water-saving technology, the research of numerical modeling of the soil water and heat made a further progress. Considering the effect of straw mulching layer，simulation on coupled movement of soil water and heat under straw mulching became complicated. This paper introduces the process of soil heat and water transport numerical simulation from bare soil to straw mulching , the empirical formula of the water movement parameters and the solution of boundary condition under straw mulching.