CAJ | 학술논문

盐碱尘暴是富含细粒硫酸盐和氯化物的化学尘暴，是大气颗粒物PM10的重要来源之一。盐碱尘暴的产生、输送和沉降对区域甚至全球生态环境和气候变化具有重大影响。本文分析了盐碱尘暴的化学组成及其危害，对盐碱尘暴的形成、输送及其环境效应作了研究综述。结果表明：干旱区干涸湖床是盐碱尘暴的发源地，风蚀作用下干涸湖床盐粒和粉尘的扩散过程主要受风场、区域气候特征和地下水埋深的影响。构建综合风动力和下垫面因子的盐粒风蚀物扩散模型，加强盐分风—水两相运移耦合作用及其与流域景观变化的关系研究是盐碱尘暴的突破方向。
염감진폭시부함세립류산염화록화물적화학진폭，시대기과립물PM10적중요래원지일。염감진폭적산생、수송화침강대구역심지전구생태배경화기후변화구유중대영향。본문분석료염감진폭적화학조성급기위해，대염감진폭적형성、수송급기배경효응작료연구종술。결과표명：간한구간학호상시염감진폭적발원지，풍식작용하간학호상염립화분진적확산과정주요수풍장、구역기후특정화지하수매심적영향。구건종합풍동력화하점면인자적염립풍식물확산모형，가강염분풍—수량상운이우합작용급기여류역경관변화적관계연구시염감진폭적돌파방향。
In many arid and semi-arid lands,dry lake bed (saline playa)represents a tremendous source of uncon-solidated salt-rich sediments available for aeolian transport.Wind erosion of such saline surface crusts causes fre-quent severe salt dust storms and products gravely hazardous to environments.In this study,chemical composition of saline dust storms and its harm were analyzed,and its formation,transport and ecological effects were reviewed. The results indicate that playa sediments are sources of saline dust storms.Transport process of salts and dust are mainly affected by wind and regional climate characteristics as well as groundwater depth.Building a transport model integrated wind power factor and underlying surface of salts from playa sediments,strengthening the study of coupling of wind-water two-phase transport of salts and discussing the relationship with watershed landscape change are key tasks of saline dust storms in the future.