河套灌区土壤潮塌灾害研究

Research on Soil Wetting-collapsing Disaster in Hetao Irrigation Area

利用河套灌区多年潮塌发生资料和相应气象资料,分析了潮塌的危害特征及成因。结果表明,潮塌发生的基础原因是秋季浇水,主要诱发因素是气象条件,盐碱化是潮塌加重发生的重要原因。

The hazardous characters and causes of wetting-collapsing were analyzed by utilizing occurrence data of wetting-collapsing and their corresponding meteorological data of Hetao irrigation area in many years.The results showed that the basic cause for occurrence of wetting-collapsing was irrigation in Autumn,its main inductive factor was meteorological condition and soil salination was important cause for aggravated occurrence of wetting-collapsing.