The soil type, cause of soil formation and soil quality changes of Holocene loess-soil sequence have been clearly distinguished.

通过本文各指标的研究，进一步认识了汾渭平原全新世土壤的类型、成因与质量演变。

youdao

Soil quality changes in a larger environment, soil type and environmental pollutants increase in the volume of the geographical scale and gradually expand further hardly.

土壤环境质量变化较大，土壤环境污染物种类和数量不断增加，发生的地域和规模在逐渐扩大，危害也进一步深入。

youdao

There's unpredictable weather, changes in soil quality, and the ever-present possibility that pests and diseases may pay a visit.

天气不可预测，土壤质量发生变化，害虫和疾病随时都可能出现。

youdao

These changes are making water supply and quality more difficult to obtain, affecting runoff and soil moisture, increasing water temperatures, decreasing snowpack and lake and river ice, threatening fish and aquatic species, and allowing saltwater intrusion and sea level rise.

FORBES: Water Risk Threatens Businesses, National Security