標準號：ISO 23611-4-2007
中文標準名稱：土壤質量.土壤無脊椎動物的取樣.第4部分:存在于土壤的線蟲類的采樣、提取和鑒定
英文標準名稱：Soil quality - Sampling of soil invertebrates - Part 4: Sampling, extraction and identification of soil-inhabiting nematodes
標準類型：B11
發布日期：2007/11/1 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：B11
國際標準分類號：13.080.05;13.080.30
適用范圍：This part of ISO 23611 specifies a method for sampling and handling free-living nematodes from terrestrialfield soils as a prerequisite for using them as bio-indicators (e.g. to assess the quality of a soil as a habitat fororganisms).This part of ISO 23611 applies to all terrestrial biotopes in which nematodes occur. The sampling design offield studies in general is specified in ISO 10381-1.This part of ISO 23611 is not applicable to aquatic nematodes because these nematodes do not pass throughthe filter. Methods for some other soil organism groups such as earthworms, enchytraeids or collembolans arecovered in other parts of ISO 23611.The nematodes that are characterized by the proposed procedure are all the free-living forms of nematodesfound in soil. They include non-plant-feeding nematodes as well as ectoparasitic plant-feeding nematodes andfree-living stage of endoparasitic nematodes. The quantification of obligate plant-feeding nematodes in rootsrequires specific methods.NOTE Basic information on the ecology of nematodes and their use as bio-indicators can be found in thebibliography.This part of ISO 23611 does not cover the pedological characterization of the site which is highlyrecommendable when sampling soil invertebrates. ISO 10390, ISO 10694, ISO 11272, ISO 11274, ISO 11277,ISO 11461 and ISO 11465 are more suitable for measuring pH, particle size distribution, C/N ratio, organiccarbon content and water-holding capacity.