探讨了长期劣质水灌溉可能对土壤侵蚀产生的影响以及减少劣质水灌溉区土壤侵蚀的化学方法；
The possible impacts of long-term irrigation with marginal water on soil water erosion as well as the chemical methods on reducing soil erosion also were discussed .
灌溉侵蚀