黑朽土属草甸土和潜育草甸土亚类,是三江平原主要低产土壤之一,耕地面积1139万亩,占总耕地面积的38%。该土粘朽、冷浆、通透性能差,在多雨季节或年分常形成上层滞水或潜育型涝害,即所谓“哑叭”涝,致使作物产量低而不稳。“哑叭”涝在农业生产上的危 Herbarium and meadow soil sub-classes are one of the main low-yielding soils in the Sanjiang Plain. The cultivated area is 1139 mu, accounting for 38% of the total cultivated land. The soil sticky, cold slurry, permeability is poor, often in the rainy season or year, the upper stagnant water or latent waterlogging, the so-called “dumb” waterlogging, resulting in low and unstable crop yield. “Dumb” waterlogging crisis in agricultural production