种稻法对苏打盐碱土改良贡献的研究

为了进一步研究通过种植水稻对改良盐碱土的贡献，不同种植年限的改良效果及改良后的盐碱土化学生物特性的变化，本研究通过对未改良及用种稻法改良不同年限后的盐碱土为材料，通过对土样不同剖面pH值、可溶性盐总量及微生物数量3个指标变化的分析，明确了改良不同年限后土壤质量的变化趋势。结果表明，土壤pH值、可溶性盐总量随改良年限增加而逐渐降低，微生物数量变化的总体趋势逐渐升高。由此可知，种稻改良法使土壤质量显著提升，且随改良年限的增加，土壤性质向利于植物生长的方面发展，对苏打盐碱土的利用及提高产量有重要意义。

Contributions to Improving Saline-Alkali Soil by Planting Rice

In order to further study the positive effect of planting rice in different years to saline-alkali soil and the biochemical characteristic change of the improving soil.With the contradictions between population growth and declining availability of land,improving use of saline-alkali soil becomes a hot issue in the sustainable use of world resources.In this study,the author used unimproved and improved saline-alkali soil through different years with rice method as material,through analysis of pH value and to...