摘要
半干旱地区蒸发量大于降水量。在地下水较浅区域，由于蒸发致使土壤表层聚盐，使土壤的理化性质恶，不利于农业生产。通过研究各种耕种方式下土壤表层盐分变化情况，总结出各种土地利用方式对土壤表层盐分变化的影响是暂时和轻微的结论。只有控制土体中的蒸发量，才能改善土壤生态环境，提高土壤利用的有效性。
Evaporation quantity is bigger than precipitation in semiarid region, and in shallow of ground water region, in which salt gathered on topsoil since evaporation, it makes character of soil physics chemistry deterioration, which go against agriculture production. In this paper by studying every kind of the way of land using, according as the changing of salt quantity on topsoil, summing up what is affect to salt quantity on topsoil are temporary and trivial. Only controlled the evaporation quantity in soil, that soil environment would be improved, the validity of soil would be boosted.
出处
《北华大学学报（自然科学版）》
CAS
2000年第6期526-528,共3页
Journal of Beihua University（Natural Science）
基金
内蒙古自治区自然科学基金资助项目!(990 30 3 - 3)
内蒙古教育厅重大研究项目!(ZD980 80 2 )
