Soil mesofauna in 4 types of soil gradient in acidity was investigated in beach land of Eastern Shanghai in 1999.
1999年，对上海浦东滩涂4类不同酸碱度土壤中的中型土壤动物进行了调查。
2
The soil mesofauna tends to gather on soil surface, but the vertical migrating greatly varies in different seasons affected by climate condition, edatope, artificial factor and so on.