1980～1983年对农安县草原盐碱土资源进行了调查。结果表明:草原盐碱土碱化日趋加重,盐碱斑占50—70%的盐碱土复区面积扩大到总面积的14%,草群覆盖度从80%逐渐降低到30%。土壤碱化与草原退化呈规律演替。土壤碱化加重既有历史成因,也写不合理开发利用相关。农安县草原盐碱土改良恢复植被的做法,收到了好效果,可为松辽平原盐碱土改良、草原更新作为借鉴。 1980 ~ 1983 in Nong’an grassland saline soil resources were investigated. The results showed that the alkalinization of grassland salinization was aggravating, the area of ​​saline - alkali lands with 50-70% salt - alkaline soil enlarged to 14% of the total area, and the coverage of grassland was gradually reduced from 80% to 30%. Soil alkalinization and grassland degradation showed regular succession. Soil alkalization exacerbates both historical causes, but also unrelated to the development and utilization of unrelated. Nong’an grassland saline-alkali soil to improve the practice of restoration of vegetation, has received good results, for the Songliao Plain saline-alkali soil improvement, grassland update as a reference.