开封古城不同朝代文化层重金属积累与污染分析

陈彦芳, 马建华, 刘德新, 谷蕾

Heavy metal enrichment and pollution of historical cultural layers in Kaifeng City, Henan Province

Yanfang CHEN, Jianhua MA, Dexin LIU, Lei GU

表1 师专岩芯各文化层及其下部地层的理化性状

Tab. 1 Physicochemical properties of each cultural layer and its lower sedimentary layer in ZKsz core

旋回	地层	深度范围(m)	颜色	质地类型	有机碳(g/kg)	砂黏比
12~13	文化层	1.4~1.8	10YR3/4暗棕	粉壤土	6.46	18.37
12~13	下部沉积层	1.8~4.5	10YR4/4棕	粉壤土	4.16	13.89
11	文化层	4.5~4.9	10YR4/4棕	粉土	2.79	3.45
11	下部沉积层	4.9~6.0	10YR5/4浊黄棕	粉土	2.65	3.69
10	文化层	6.0~6.4	10YR4/6棕	粉土	4.00	3.72
10	下部沉积层	6.4~6.7	7.5YR4/4棕	粉土	3.86	1.09
9	文化层	6.7~7.2	10YR4/1灰棕	粉壤土	7.74	20.60
9	下部沉积层	7.2~8.5	10YR4/4棕	粉壤土	5.77	15.72
8	文化层	8.5~9.3	10YR3/2黑棕	粉壤土	4.73	13.97
8	下部沉积层	9.3~10.4	10YR5/3浊黄棕	粉壤土	2.48	7.40
7	文化层	10.4~10.8	10YR4/3浊黄棕	粉壤土	2.55	12.89
7	下部沉积层	10.8~11.9	10YR4/6棕	粉壤土	1.93	6.11