Guangzhou greenbelt soil nematode types and diversity characteristics
ZHU Chun1, SU Zhi-yao2, XIONG Yong-mei1
1. Guangzhou Institute of Landscape Gardening, Guangzhou 510405, China; 2. College of Forestry, South China Agricultural University, Guangzhou 510642, China
Changes of soil nematode types and diversity were investigated in this study by taking an ecological green-land with 100 km long and 10 km wide from Liwan District of Guangzhou,going northeast and extending to Conghua Stream Natural Reserve as an example.Totally 17 538 soil nematodes were identified,belonging to two class,four order and sixteen genus.Bacteria-feeding nematode occupied 75.82% and it was the dominant species.The change trend of Shannon-Wiener index and Simpson index of soil nematodes from different transects line were the same,and at the distance of 45 km from the city center,the soil nematode diversity had a turning point,which decreased firstly and then increased.The areas with extremely low population density had the most genus,and also had the highest soil nematode Shannon-Wiener index,Simpson index diversity and Pielou evenness.
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