【摘要】 本文论述了河西走廊盐土的资源及分布特点、形成原因 .应用生物措施在盐土上种植耐盐植物碱茅草 ,脱盐改土效果十分明显 .种植碱茅草 3～ 4年 ,脱盐率达到 77 0 0～ 84 63 % ,pH值由 8 50降到 8 2 0 .更多还原

【Abstract】 We investigated the distribution, characteristics and formation of saline soils in HeXi Zolang region. The effects of desalting and amelioration were obvious by using a biotic-measure, to plant salt-tolerant weeping alkaligrass. After planting 3-4 years, the desalinization ratio reached to 77.0 to 84.6%, pH value decreased from 8.5 to 8.2, apparent density decreased at a range from 0.14 to 0.21g/cm 3 , the total porosity increased from 5.29 to 7.93g/kg, and granular-structure increased from 23.14-32.33%更多还原