This part of ISO 23611 specifies a method for sampling and handling earthworms from field soils as a prerequisite for using these animals as bioindicators (e.g. to assess the quality of a soil as a habitat for organisms). Basic information on the ecology of earthworms and their use as bioindicators in the terrestrial environment can be found in the references listed in the bibliography. This part of ISO 23611 applies to all terrestrial biotopes in which earthworms occur. The sampling design of field studies in general is specified in ISO 10381-1 (see also Reference [38]) and guidance on the determination of effects of pollutants on earthworms in field situa
DS/EN ISO 23611-1:2011 history
2011DS/EN ISO 23611-1:2011 Soil quality - Sampling of soil invertebrates - Part 1: Hand-sorting and formalin extraction of earthworms