Terrestrial environment

Effects of heavy metal pollution of highway origin on soil nematode guildsin North Shenyang, China

HAN Dechang , ZHANG Xiaoke , TOMAR Vijay Vikram Singh , LI Qi , WEN Dazhong , LIANG Wenju


Received March 01, 2008,Revised July 18, 2008, Accepted , Available online

Volume 21,2009,Pages 193-198

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Soil samples were collected with distance at 5, 20, 40, 80, 160, and 320 m from the Shen-Ha (Shenyang-Harbin) Highway, Northeast China, to investigate the e ect of heavy metals of highway origin on soil nematode guilds. The contents of soil Pb, Cu, Zn, and the nematode community structure were analyzed. The results showed that the contents of total and available Pb, Cu, Zn varied significantly with the di erent distances from the highway. Pb was the main pollutant in the soils in the vicinity of Shen-Ha Highway. The zone from 20 to 40 m away from the highway was the most polluted area. The highest abundance of soil nematodes was found at 5 m while the lowest at 20 m away from the highway. Thirty six genera of nematodes belonging to 23 families were identified. Nematode guilds having di erent responses to soil heavy metals were classified into four types. Soil nematode guilds may act as a prominent indicator to heavy metal pollution of highway origin.

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