Vinichuk Mykhaylo M, Johanson Karl J
Department of General Ecology, State Academy of Agriculture and Ecology of Ukraine, 10001 Zhitomir, Ukraine.
J Environ Radioact. 2003;64(1):27-43. doi: 10.1016/s0265-931x(02)00056-5.
During 1996-1998, 16 fruit bodies of different species and 204 soil samples down to 10 cm in the close vicinity of the fruit body sites were collected in a coniferous forest in the Ovruch region of Ukraine. The soil samples were sliced into 1 or 2 cm layers and the fungal mycelium was prepared from each of the layers. The 137Cs activity concentration was determined in both soil and mycelium. The mean weight of fungal mycelium was 13.8 mg g(-1) of soil in the upper 4 cm and 7.3 mg g(-1) when measured for the upper 10 cm. At the sites of Paxillus involutus and Sarcodon imbricatus, the mycelium was rather homogeneously distributed in the upper 10 cm and at sites of Xerocomus subtomentosus and Cantharellus cibarius, the mycelium was distributed mostly in the upper layers. The highest 137Cs activity concentrations were found in the upper layers of the soil profile. The 137Cs activity concentrations were usually higher in the fruit bodies compared with the mycelium, with ratios ranging from 0.1 to 66 and a mean of 9.9. The percentage of the total inventory of 137Cs in the soil found in the fungal mycelium ranged from 0.1 to 50%, with a mean value of 15%.
1996年至1998年期间，在乌克兰奥夫鲁奇地区的一片针叶林中，采集了16个不同物种的子实体以及子实体附近深度达10厘米的204份土壤样本。将土壤样本切成1或2厘米厚的土层，从每个土层中制备真菌菌丝体。测定了土壤和菌丝体中的137Cs活度浓度。真菌菌丝体的平均重量在土壤上层4厘米时为13.8毫克/克，上层10厘米时为7.3毫克/克。在卷缘桩菇和亚鳞扇菇的生长地点，菌丝体在10厘米上层分布较为均匀；在绒毛干酪菌和鸡油菌的生长地点，菌丝体大多分布在上层。土壤剖面的上层发现了最高的137Cs活度浓度。子实体中的137Cs活度浓度通常高于菌丝体，其比值范围为0.1至66，平均值为9.9。真菌菌丝体中发现的土壤中137Cs总存量的百分比范围为0.1至50%，平均值为15%。
