The dynamics of chemical types and main components in vertical profile of soil and groundwater in salt affected soil area are focused in this paper.
以河北曲周县北部盐渍土区为基地，重点研究了土壤和地下水以阴离子组分为基础的化学类型的动态，以及主要化学组分的垂向变化和动态。
Soil hydraulic conductivity is closely related to the movement of water and salts in soil profiles and is highly affected by solution salt concentration and its composition.
水力传导度的变化直接影响土壤剖面的水盐运动，并和土壤溶液的盐分浓度及其组成有很大关系。
Soil water affected the root growing directly. Light salt force in water conduced to the root growth. But enough water was harmful for the root of tall fescue.
土壤水分直接影响根系的生长，轻度水分胁迫有助于根系的生长，充足水分条件并不利于高羊茅根系生长。
Soil type and soil texture and land type affected the movement of water and salt in soil, thereby influenced 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。
Much research of characteristics of soil water and salt transport under drip irrigation, an important basis to develop salt-affected land, has been conducted at home and abroad.
滴灌条件下的水盐运移特性是寻求开发利用盐碱地和次生盐碱化防治的基础，国内外学者对此进行大量研究。
Osmotic potential could be estimated by the difference between the potential of natural salt-affected soil and that of the salt-leached soil.
盐分非常显著地降低了土壤的水势，可以用盐化土样的水势与脱盐处理土样的水势估算盐化土样的渗透势。
Based on the character and practical status of salt-affected soil, it is economical, reliable, simple and fesible to adopt changing soil method and to deepen foundation mat to treat the foundation.
根据盐渍土的特性及实际情况，采用换土法并结合加深基础垫层等方法对地基进行处理是经济可靠和简便易行的。
Main environmental geological problems are salt-affected soil in north of Yinchuan Plainand desertification in north-middle of Ningxia and montanic soil erosion in south of Ningxia.
主要的环境地质灾害是银川平原北部地区的土壤次生盐渍化，宁夏中北部的土地荒漠化、沙漠化，宁夏南部山区的水土流失。
Main environmental geological problems are salt-affected soil in north of Yinchuan Plainand desertification in north-middle of Ningxia and montanic soil erosion in south of Ningxia.
主要的环境地质灾害是银川平原北部地区的土壤次生盐渍化，宁夏中北部的土地荒漠化、沙漠化，宁夏南部山区的水土流失。
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