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发育在冲积平原上的土壤,土体中夹有粘土层是很普通的现象。1987年在滨海平原110个土壤剖面调查中,发现粘土层以不同厚度和层位存在时,土壤表现出不同的盐渍状况,该地区粘土层表居很普遍。我们曾对粘土层在浅、中、深三个层位的5、15、30厘米三
Developed in the alluvial plain soil, clayey soil layer is a very common phenomenon. In a survey of 110 soil profiles in the coastal plain in 1987, when soil layers were found with different thickness and horizon, the soil showed different salinities. The clay horizon in this area is very common. We have on the clay layer in the shallow, middle and deep three layers of 5,15,30 cm three