The soil type, cause of soil formation and soil quality changes of Holocene loess-soilsequence 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。
2
Instead of analysing the genome of a specific organism, scientists sequence all the DNA they find in environmental samples, ranging from seawater to soil.
有别于分析特定生物的基因组，科学家对取自海水、土壤等自然界的生物样本，统统进行DNA测序。
3
Essentially we can take a sample of soil or air — and in our case — water, and we can sequence the DNA out of it and tell you what is there.