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

土壤大孔隙對坡面溶質(zhì)流失的影響
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:

國家自然科學(xué)基金資助項目(41105077)、水利部公益性行業(yè)科研專項資助項目（201001047）、江蘇省高校自然科學(xué)基礎(chǔ)研究資助項目（11KJB170008）和南京信息工程大學(xué)科研基金資助項目（S8110144001）


Effects of Soil Macropore on Slope Solute Loss
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:

    以室內(nèi)實驗槽為平臺，利用人工模擬降雨實驗，研究了大孔隙對坡面Br-流失的影響。研究結(jié)果表明，大孔隙坡面的地面徑流中Br-流失總量和平均流失速率均較無大孔隙坡面小。將大孔隙特征尺度、降雨強(qiáng)度、降雨歷時、坡度和離子吸附系數(shù)作為模型的輸入，坡面溶質(zhì)累積流失量作為模型輸出，建立了基于模糊神經(jīng)網(wǎng)絡(luò)的坡面溶質(zhì)流失模型。并以160組實測數(shù)據(jù)為基礎(chǔ)，對模型進(jìn)行了仿真驗證。仿真結(jié)果顯示，坡面累積溶質(zhì)流失量模擬仿真輸出與實驗測量輸出基本一致，所建系統(tǒng)模型是有效的。

    Abstract:

    Using indoor experimental tanks, a simulated rainfall experiment was conducted to explore the effect of soil macropore on slope Br- loss. Results revealed that the total amount and average rate of Br- loss over slope land with soil macropore were less than those without soil macropore. A model of solute loss on slope was built based on fuzzy neural network. The characteristic scale of macropore, rainfall intensity, rainfall duration and adsorption coefficient of ions were used as input variables and the cumulative solute loss quantity on slope was output. Comparing with 160 sets of measured data, simulation results reflected real cumulative solute loss quantity on slope, which showed the established model was effective. 

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

張小娜,馮杰,邵偉,尹義星.土壤大孔隙對坡面溶質(zhì)流失的影響[J].農(nóng)業(yè)機(jī)械學(xué)報,2013,44(6):117-121,147. Zhang Xiaona, Feng Jie, Shao Wei, Yin Yixing. Effects of Soil Macropore on Slope Solute Loss[J]. Transactions of the Chinese Society for Agricultural Machinery,2013,44(6):117-121,147.

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: 2013-05-28
  • 出版日期: