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The vertical distribution of soil nematodes down to a depth of 50 cm was studied in an age sequence of 0-, 5-, 10-, and 22-year-old Caragana microphylla plantations (treatments) in the Horqin Sandy Land, Northeast China. The abundances and generic compositions of nematode fauna in five soil layers (0–10, 10–20, 20–30, 30–40, and 40–50 cm) were analyzed. 42 genera were observed in the nematode suspensions,...
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