应重视天津滨海地区土壤次生碱化的防治

Prevention and Relief of Soil Secondary Alkalization in Tianjin Coast Area

根据调查和化验分析，作者认为近年来天津滨海地区土壤出现了次生碱化现象并已危及农业生产和城市绿化，并认为这是滨海盐土在改良过程中发生脱盐碱化以及低矿化（高钠）碱性水灌溉所引起的土壤次生碱化过程。提出采用农业、生物、水利等多种措施和应用化学改良剂防治碱化土壤的方法。

Abstract,According to investigation and chemical analyses,in recent years,there is a phenomenon of soilsecondary alkaliization in Tianjin coast area. And it has endangered agriculture and city landscape.Thisphenomenon is caused by desalt alkalization which occurs during the process of coast saline soil is amelio-rated and irrigation with lower mineralization alkali water.This paper proposed that using multi-steps in-cluding agriculture,biology and water conservancy and applying chemical meliorator to prevent and relievealkalization of soils.