Delta Institute for Hydrobiological Research, Vierstraat 28, 4401 EA, Yerseke, The Netherlands.
Environ Monit Assess. 1986 Nov;7(3):233-48. doi: 10.1007/BF00418016.
A survey is given of the possibilities and restrictions of (bio)monitoring trace metals in the salt marsh as exemplified for the Scheldt estuary. The objectives for monitoring in the salt marsh are enumerated as well as the requirements they should meet. Previous studies on monitoring trace metals in the salt marsh are reviewed.Problems in monitoring trace metals in the soil subsystem are due to variations in the input of these metals, the type of esturine circulation and the distribution of physical and chemical conditions in the salt-marsh deposits. The degree of metal enrichment and the spectrum of chemical speciation of the metals by means of a sequential extraction procedure is shortly discussed.Problems in monitoring trace metals in salt-marsh plants are discussed with respect to the bioavailability of these metals from soil and inundation water as sources of contamination, the allocation and seasonal variation in metal accumulations, and the role of adhesive particulate matter carried on the shoots by the floods. Aster tripolium seems to be a good species for biomonitoring trace metals in the vegetational component of the salt-marsh ecosystem.
对（生物）监测盐沼中痕量金属的可能性和限制进行了调查，以荷兰斯凯尔特河口为例。列举了在盐沼中进行监测的目标以及它们应满足的要求。回顾了之前在盐沼中监测痕量金属的研究。在土壤子系统中监测痕量金属的问题归因于这些金属的输入变化、河口循环的类型以及盐沼沉积物中物理和化学条件的分布。简要讨论了通过顺序提取程序对金属进行的富集程度和化学形态分析。讨论了在盐沼植物中监测痕量金属的问题，涉及这些金属从土壤和淹没水中的生物可利用性作为污染来源、金属积累的分配和季节性变化，以及洪水携带的附着颗粒物质在植物中的作用。三齿滨藜似乎是监测盐沼生态系统植被成分中痕量金属的良好物种。
