<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>The effect of Cu and Zn on soil nematode communities at the depth of 0–20 cm was investigated along a pollution gradient with increasing distance from a copper smelter in Northeast China. The results showed that the abundance of total nematodes significantly increased with increasing distance from the smelter, and nematode taxon richness also exhibited an increasing trend. Twenty genera were observed in our study, and Paratylenchus was the dominant genus at all the sampling sites. The numbers of total nematodes, bacterivores, plant parasites, omnivores-predators and the values of NCR (Nematode Channel Ratio) negatively correlated with total Cu (P &lt; 0.01), total and available Zn (P &lt; 0.01). The values of SI (Structure Index) negatively correlated with total Cu (P &lt; 0.05). Among the nematode ecological indices examined, NCR and SI were found to be sensitive indicators for assessing the effect of heavy metals on soil nematode communities in this study.</p></abstract>

The effect of Cu and Zn on soil nematode communities at the depth of 0–20 cm was investigated along a pollution gradient with increasing distance from a copper smelter in Northeast China. The results showed that the abundance of total nematodes significantly increased with increasing distance from the smelter, and nematode taxon richness also exhibited an increasing trend. Twenty genera were observed in our study, and Paratylenchus was the dominant genus at all the sampling sites. The numbers of total nematodes, bacterivores, plant parasites, omnivores-predators and the values of NCR (Nematode Channel Ratio) negatively correlated with total Cu (P < 0.01), total and available Zn (P < 0.01). The values of SI (Structure Index) negatively correlated with total Cu (P < 0.05). Among the nematode ecological indices examined, NCR and SI were found to be sensitive indicators for assessing the effect of heavy metals on soil nematode communities in this study.

Soil nematode responses to heavy metal stress

Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China

College of Life Sciences, Liaoning Normal University, Dalian, 116029, China

Chinese Academy of Sciences, Graduate University, Beijing, 100049, China

Helminthologia

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Soil nematode responses to heavy metal stress"}

The effect of Cu and Zn on soil nematode communities at the depth of 0–20 cm was investigated along a pollution gradient with increasing distance from a copper...

Soil nematode responses to heavy metal stress

Pubblicato online: 01 giu 2007

Pagine: 87 - 91

DOI: https://doi.org/10.2478/s11687-007-0009-5

Parole chiave
soil nematode, community structure, ecological indices, copper smelter, heavy metals

© 2007 Institute of Parasitology, SAS, Košice, Slovakia

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Soil nematode responses to heavy metal stress

Pubblicato online: 01 giu 2007

Pagine: 87 - 91

DOI: https://doi.org/10.2478/s11687-007-0009-5

Parole chiavesoil nematode, community structure, ecological indices, copper smelter, heavy metals

© 2007 Institute of Parasitology, SAS, Košice, Slovakia

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Parole chiave
soil nematode, community structure, ecological indices, copper smelter, heavy metals