Soil degradation in this region mainly expressed decrease of nutrition element and increase of salt and alkali.
该地区的土壤退化主要表现为营养成分的减少，有害的盐碱成份的增加。
2
Aiming at the burden degradation and the problem of which alkali has a strong impact on blast furnace process in recent years, the influence of alkali on coke was studied.