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对采自于烟台四十里湾附近海域的4个沉积物柱状样进行了分析,测定了样品的粒度组成、总碳含量(TC)、总有机碳(TOC)含量及黑碳(BC)含量等参数。结果表明,所获得的4个柱状沉积物中有3个的BC含量随深度的增加而逐渐减少,其中离岸最远的E站最为明显,与社会经济的增长趋势较为一致。BC含量最高值为0.118%,出现在粒度较细且离岸较近的站位D中。BC∶TOC值大多在10%~20%范围内,为中国近海海域的中等水平。沉积物BC的含量与沉积物物理化学性质,采样点的地质环境状况等因素有关。人类活动如陆源污染物排放、城市建设及船舶排污等对烟台四十里湾附近海域的地质环境状况有着较强的影响。
Four sedimentary column samples collected from the sea near Sishili Bay of Yantai were analyzed to determine the grain size, total carbon (TC), total organic carbon (TOC) and black carbon (BC) Other parameters. The results showed that the BC content of three of the four columnar sediments decreased gradually with increasing depth, of which the E station with the longest distance offshore was the most obvious, which was consistent with the trend of socio-economic growth. The highest content of BC was 0.118%, which appeared in station D with fine grain size and close offshore. BC: Most of the values of TOC are in the range of 10% -20%, which is the middle level of China’s offshore waters. Sediment BC content and sediment physical and chemical properties, the sampling point of the geological conditions and other factors. Human activities such as the discharge of land-based pollutants, urban construction and ship discharge have a strong impact on the geo-environmental conditions in the area around Ysitai Bay in Yantai.