Notten M J M, Oosthoek A J P, Rozema J, Aerts R
Institute of Ecological Science, Department of Systems Ecology, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081 HV, Amsterdam, The Netherlands.
Environ Pollut. 2005 Nov;138(1):178-90. doi: 10.1016/j.envpol.2005.01.011.
We investigated concentrations of Zn, Cu, Cd and Pb in the compartments of a soil-plant (Urtica dioica)-snail (Cepaea nemoralis) food chain in four polluted locations in the Biesbosch floodplains, the Netherlands, and two reference locations. Total soil metal concentrations in the polluted locations were 4-20 times higher than those in the reference locations. Positive relationships between the generally low leaf concentrations and the soil concentrations were found for Zn only (r2 = 0.20). Bioaccumulation of Zn, Cu and Cd was observed in the snail tissues. We found positive relationships between the snail and leaf concentrations for all metals (range r2 = 0.19-0.46). The relationships between soil and snail concentrations were also positive, except for Cu (range r2 = 0.15-0.33). These results suggest transfer of metals to C. nemoralis snails from U. dioica leaves and from the soil. Metal transfer from polluted leaves to C. nemoralis is more important than transfer from the soil.
我们对荷兰比斯博斯河漫滩四个污染地点以及两个参照地点的土壤-植物（荨麻）-蜗牛（森林蜗牛）食物链各部分中的锌、铜、镉和铅浓度进行了调查。污染地点土壤中的总金属浓度比参照地点高4至20倍。仅锌的叶片浓度普遍较低与土壤浓度之间存在正相关关系（r2 = 0.20）。在蜗牛组织中观察到锌、铜和镉的生物累积现象。我们发现所有金属的蜗牛浓度与叶片浓度之间均存在正相关关系（r2范围为0.19至0.46）。除铜外，土壤浓度与蜗牛浓度之间也呈正相关（r2范围为0.15至0.33）。这些结果表明金属从荨麻叶片和土壤转移至森林蜗牛体内。金属从受污染叶片向森林蜗牛的转移比从土壤中的转移更为重要。
