Bunzl K, Schimmack W
Gesellschaft für Strahlen- und Umweltforschung (GSF) München, Institut für Strahlenschutz, Neuherberg, Federal Republic of Germany.
Radiat Environ Biophys. 1988;27(2):165-76. doi: 10.1007/BF01214606.
Six soils, two Sphagnum peat samples and a clay mineral were irradiated with 40 and 80 kGy (4 and 8 Mrad) from a 60Co source. As a result the microbial biomass, determined separately for each sample, decreased considerably. Depending on the radionuclide, the sorption, as characterised by the distribution coefficient, decreased, increased or remained unchanged. The effect of the irradiation on the sorption of the radionuclides depended, in general, also on the type of the sample, especially whether well humified soils, (e.g. crop soils), poorly humified samples (Sphagnum peat, O-horizon from woodland), or a clay mineral was employed. The data reveal that irradiation produces, besides sterilization, also other effects in soils, which can change their sorption properties.
六种土壤、两份泥炭藓泥炭样本和一种粘土矿物用来自钴 - 60源的40和80千戈瑞（4和8兆拉德）进行辐照。结果，对每个样本单独测定的微生物生物量大幅下降。根据放射性核素的不同，以分配系数表征的吸附作用会降低、增加或保持不变。辐照对放射性核素吸附的影响通常还取决于样本的类型，特别是使用的是充分腐殖化的土壤（如作物土壤）、腐殖化程度低的样本（泥炭藓泥炭、林地的O层）还是粘土矿物。数据表明，辐照除了杀菌外，还会在土壤中产生其他影响，这些影响会改变土壤的吸附特性。
