棕壤各亚类土壤总孔隙度高低顺序依次为：典型棕壤>白浆化棕壤>潮棕壤>棕

The order of the total porosity of each subtype of brown soil is in order of: typical brown soil>white pulped brown soil>tidal brown soil>brown soil. <br>The subsurface soil porosity of the Chao soil varies greatly, with an average of 48.03% for Chao soil and 45.17% for salinized Chao soil. Sort: Chao soil>Saline soil

The total porosity of the subtypes of brown soil is followed by: typical brown soil and white-pulpized brown soil, and brown soil.<br>The porosity of the subtypes of tidal soil varies greatly, with the average of 48.03 percent and the average salted soil 45.17%. Sorting: Tidal soils and salted tide stoic soils

The order of the total porosity of brown soil was: typical brown soil > albic brown soil > Chao brown soil > brown soil.<br>The porosity of different sub types of soil is quite different, with an average of 48.03% for fluvo aquic soil and 45.17% for saline soil. The order of order was: fluvo aquic soil > salinized Chao soil