新疆是我国最干旱的地区,也是土壤盐碱化面积最大、最集中的地方,曾有世界盐碱土宝库之称。据统计,全疆荒地资源约1.5亿亩,其中轻度和非盐碱化土壤占26.6％,盐化和碱化土壤占16.3％,轻盐土占9.5％,中重盐土和盐碱土占17％,难利用或不宜利用的尚有30.6％。在现有耕地中,约有25—30％的面积不同程度地受次生盐碱化威胁和危害。因此,在新疆,无论提高单产、扩大耕地或建设草场,都必须十分重视对盐碱土的改良与利用。 Xinjiang is the most arid region in China. It is also the place where soil salinization is the largest and most concentrated. There was once the world’s treasure house of saline-alkali soil. According to statistics, there are about 150 million mu of wasteland resources in the whole Xinjiang, including 26.6% of light and non-salinized soils, 16.3% of salinized and alkalized soils, 9.5% of light salty soils, 17% of medium- , 30.6% are hard to use or unfit for use. About 25-30% of existing cultivated land is threatened and endangered by secondary salinization to varying degrees. Therefore, in Xinjiang, great efforts must be made to improve and utilize saline-alkali soil, whether increasing yields, expanding cultivated land or constructing pastures.