The foraminifera in the core samples were most abundant after 1950, when farmers began using some fertilizer, which is rich in nutrients.
核心样本中的有孔虫在1950年之后最多，当时农民开始使用一些营养丰富的肥料。
The foraminifera in the core samples were most abundant after 1950, when farmers began using some fertilizer, which is rich in nutrients.
核心样本中的有孔虫在1950年之后最多，当时农民开始使用一些营养丰富的肥料。
应用推荐