1950年,在比利时海边的围垦区,对土壤结构的退化进行了研究(德冷希尔DeLeenheer和德布得特De Boodt 1950),此后过了好些年,于1962年秋天开始作了一个长期的试验(一直延续到1974年),以研究机械化农业对土壤结构和物理性土壤肥力的影响。发现,即使在淤泥地区(肥沃的地区)由于不施农家肥料和机械化农业使用重型机器,对于土壤结构的退化,也会产生严重的后果。 Degradation of the soil structure was studied in the reclamation area by the Belgian seaside in 1950 (DeLeenheer and De Boodt 1950), and many years later, in the fall of 1962, a long-term Test (until 1974) to study the effects of mechanized agriculture on soil structure and physical soil fertility. Found that even the use of heavy machinery in silt areas (fertile areas) due to non-application of manure and mechanization of agriculture found serious consequences for the degradation of soil structure.