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本文通过对江苏省灌河口以南潮间带滨海盐土2个亚类9个剖面38个土层的研究指出:在地处湿润地区和含有石灰的滨海盐土自然脱盐过程中钠吸附比减小,从而土壤碱化度也降低;虽然重碳酸根含量和pH值有一定程度的增加,但因土壤中有石灰的存在,阻止着碳酸钠盐类的产生而不使土壤发生碱化。另外,笔者认为重碳酸根和pH值有所增加主要是由于自然脱盐过程中溶液中的钙离子有所减少所致。
In this paper, a study of 38 soil layers in 9 sections and 2 sections in 2 sub-classes of coastal saline soil in the intertidal zone south of the Guanhekou in Jiangsu Province indicates that the sodium adsorption rate decreases during the natural desalination of coastal saline soil in the wet areas and lime- As a result, the alkalization degree of soil was also reduced. Although the content of bicarbonate and pH increased to a certain degree, the presence of lime in the soil prevented the production of sodium carbonate salts without alkalizing the soil. In addition, I believe that the increase of bicarbonate and pH is mainly due to the decrease of calcium ions in the solution during the natural desalting process.