土壤类型、质地和土地类型对土壤盐渍化水平的指示

The Indication Function of Soil Type and Soil Texture and Land Type to Soil Salinization Levels

土壤类型、土壤质地和土地类型以不同的方式影响着土壤水盐运移,对土壤盐渍化水平有一定的指示作用。野外调查和土壤采样分析获得了73个同一位置土壤的土壤类型、土壤质地、土地类型数据以及土壤盐渍化水平数据,利用信息量计算法评价了土壤类型、土壤质地和土地类型对现代黄河三角洲土壤盐渍化水平的指示作用,结果表明:潮土-(粘土和砂壤)-(幼年水稻土平地和盐化潮土河滩高地)对轻度盐渍化有指示作用,粘土-(砂质黄河滩地和盐化潮土浅平洼地)对中度盐渍化有指示作用,砂壤-(獐茅、芦草潮盐土平地和盐化潮土浅平洼地和白茅、芦苇盐潮土平地)对重度盐渍化有指示作用,盐化潮土-重壤-(滨海盐滩地和滨海芦苇沼泽湿洼地和獐茅、芦草潮盐土平地和白茅、芦苇盐潮土平地)对盐土有指示作用。

Soil type and soil texture and land type affected the movement of water and salt in soil, thereby influenced soil salinization levels. 73 samples which included soil type and soil texture and land type and soil salinizaiton levels were collected through field survey and historical data, and then assessed the indication function of soil type and soil texture and land type to soil salinization levels using information computation methods. The results indicated that Calcaric fluvisols-（Clay and Sandy loam）-（Infant rice soil-flat land and Saline moisture soil-paleochannel high land） were in favor of slightly salinization, and Clay-（Sand YR flood plain land and Saline moisture soil-shallow depression land） were in favor of moderately salinization, and Sandy loam-（Aelurpus littoralis, reedy grass-moisture saline soil-flat land and Saline moisture soil- shallow depression land and Imperata cyindrica, reedy grass-saline moisture soil-flat land） were in favor of strongly salinization, and Salic fluvisols-Silty clay-（Saline coast beach land and Phragmitas communis- swamp saline soil-coastal depression wetland and Aelurpus littoralis, reedy grass-moisture saline soil-flat land and Imperata cyindrica, reedy grass-saline moisture soil-flat land） were in favor of saline soils to occur.