【摘要】 通过多点采样分析发现，天津滨海盐土已出现脱盐碱化趋势，并对城市绿化和农业持续发展产生危害。进一步研究证明盐土脱盐过程中的脱盐碱化、苏打型地下水引起的土壤碱化，以及碱性水灌溉造成的土壤次生碱化是天津地区土壤碱化的主要原因。更多还原

【Abstract】 According to investigation and chemical analyses,there is phenomenon of soil desalting alkalization in Tianjin ,which has endangered sustainable agriculture and city landscape.The further research has demonstrated that soil alkalization in Tianjin result from soil desalting ,underground soda water and irrigation with lower mineralized alkali water.更多还原