Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《China Rural Water and Hydropower》 2010-10
Add to Favorite Get Latest Update

Research on the Moment of Water and Salinity for Drip Irrigation under the Film under Saline and Alkali Soils

WANG Yi-min,HUSAN-Tumarbay,YI Peng-fei,ZHANG Jin-zhu,WU Zheng-guang,XU Feng-li(School of Water Hydraulic and Civil Engineering,Xinjiang Agricultural University,Urumqi 830052,China)  
In this paper,the moment of water and salt in soil drip irrigation under the film is studied through indoor experiments.In the lab,water constant is usual for 10 L viewed in the homogenous soil,in the case of different initial soil moisture(7.6%,14.8% and 21.3%) and flow(1 L/h,2 L/h and 3 L/h).The effect of drip discharges and initial soil moisture on water and salt moment in saline and alkali soil is pursued.The results show that as initial soil moisture increases the volume of the wetted soil and water content around drippers also increases.The increase in initial soil moisture would decrease the desalinization effect and water moment rate decreases horizontally.On the contrary,water moment increases vertically.As the drip discharge increases,water moment distance increases and desalinization distinctly horizontally.Little drip discharge is good for the vertical water moment.From the center of the drip,the moist distance of horizontal and vertical width of moisture converge has a good power function relation to time.
【Fund】: 国家科技支撑项目(2007BAD38B01);; 新疆维吾尔族自治区科技攻关重大专项(200731137-1);; 新疆维吾尔族自治区自然科学基金(200821172);; 新疆水利水电工程重点学科资助(xjzdxk-2002-10-05)
【CateGory Index】: S152.72
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved