亚洲一区欧美在线,日韩欧美视频免费观看,色戒的三场床戏分别是在几段,欧美日韩国产在线人成

膜孔灌平均入滲水深簡化計算模型建立與驗
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:


Infiltration Model of Film Hole Irrigation and Its Validation
Author:
Affiliation:

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問統(tǒng)計
    • |
  • 參考文獻(xiàn)
    • |
  • 相似文獻(xiàn)
    • |
  • 引證文獻(xiàn)
    • |
  • 資源附件
    • |
  • 文章評論
    摘要:

    以非飽和土壤水分運動理論為基礎(chǔ)，研究了膜孔灌土壤水分運動的數(shù)學(xué)模型，并用SWMS—3D軟件對多種典型土壤的膜孔灌入滲特性進(jìn)行模擬，利用模擬結(jié)果分析了膜孔灌入滲特性及其影響因素，提出了包含開孔率、膜孔直徑的膜孔灌點源平均入滲水深簡化模型。采用多種土壤膜孔灌入滲室內(nèi)試驗結(jié)果與已有文獻(xiàn)資料對所建模型進(jìn)行驗證，結(jié)果表明所建模型能較準(zhǔn)確地反映膜孔灌點源入滲特性，可為確定合理的膜孔灌灌水技術(shù)要素組合提供理論依據(jù)。

    Abstract:

    Based on the theory for water movement in non-saturated soil, the mathematical model of film hole irrigation was developed to describe soil water movement, and the simulation was performed by using SWMS—3D software. According to the simulated results, the characteristics and infecting factors of infiltration of film hole irrigation was analyzed, and the simplified film hole infiltration model including the opening hole ratio and the film hole diameter was presented. The model was verified by infiltration experiments at several typical soils condition and other researcher’s experiment results. It was showed that the model is simple and credible with less parameters, which can been using for deciding reasonable technological elements of film hole irrigation water to improve irrigation water quality.

    參考文獻(xiàn)
    相似文獻(xiàn)
    引證文獻(xiàn)
引用本文

馬孝義,范嚴(yán)偉,王術(shù)禮,孫秀娟,王波雷.膜孔灌平均入滲水深簡化計算模型建立與驗[J].農(nóng)業(yè)機械學(xué)報,2009,40(8):67-73. Infiltration Model of Film Hole Irrigation and Its Validation[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(8):67-73.

復(fù)制
分享
文章指標(biāo)
  • 點擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期:
  • 出版日期: