衬砌渠道的水力学效果与生态安全性张恒君译李清耀校在土壤改良方面出现的生态问题，在很大程度上是由各种不同灌溉渠道（从干渠到农场内部的渠道）水力学上不够可靠引起的。长期以来，渠道基本上是设计成土渠，只是在近２０年来才予以衬砌。土床灌溉渠道的使用，引起了很... Hydrodynamic effects and ecological safety of lining channels Zhang Hengjun Li Qingyao The ecological problems that occur in soil improvement are largely due to the lack of reliability of hydraulics from a variety of irrigation channels (from the main canal to the farm’s internal channels) of. For a long time, the channel was basically designed as a canal, which was only lined up for nearly 20 years. The use of soil bed irrigation channels has caused a lot of ...