The sewage soil disposal experiment is made mainly by using biochemical process of looser permeable soilhorizon, and secondly by leaching and adsorption.
污水土壤处理试验，主要是利用透水性较强的土壤层的生物化学作用，其次是淋滤吸附。
2
The relationship between soil moisture in various soilhorizon and senescence, and irrigation efficiency of different irrigation scheme have been discussed.
文中还就不同层次土壤水分状况与衰老的关系及不同灌水方案的灌溉效益进行了分析。
3
The SOTER attribute database consisted of four parts; the map delineation information table, the landscape environment table, the typical pedon table and soilhorizon table.