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通过对三江平原各类型白浆土有机——无机复合胶体研究的结果看出,从岗地白浆土→平地白浆土→低地白浆土,土壤表层有机质总量依次为3.84%、4.67%、7.31%;土壤复合有机质量为3.44%、3.46%、5.11%;土壤复合度的变化梯度为89.58%、74.09%、69.90%.上述三项指标在白浆层中均很低. 表层有机——无机复合状况良好,致使土壤结构、保水、保肥性能显著优于白浆层. 因此,白浆土改良是趋利避害,发挥黑土表层优势,千方百计增厚黑土层,改造白浆层不良本性,打破白浆土黑土层薄、白浆层厚的不合理土体构造.
The results of organic-inorganic composite colloids of various types of white soil in the Sanjiang Plain show that the total amount of organic matter in the soil surface is 3.84%, 4.67% from white clay soil → flat white soil → lowland white soil, 7.31% and 3.44%, 3.46% and 5.11%, respectively, and the variation gradients of soil recombination degree were 89.58%, 74.09% and 69.90% .The above three indexes were very low in the white pulp layer.The surface organic- Inorganic composite state is good, resulting in soil structure, water retention, fertilizer performance significantly better than the white pulp layer.Therefore, the white pulp soil improvement is to avoid disadvantages, play the superiority of black soil surface, do everything possible to thicken the black soil layer, transform the bad nature of white pulp layer , To break the alluvial soil black soil thin, white layer thick irrational soil structure.