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Table 4 Results of snail survey of different vegetation communities in Junshan District, Hunan province

From: SWOT analysis on snail control measures applied in the national schistosomiasis control programme in the People’s Republic of China

Sampling sites

Investigation frames

Number of frames with snails

Occurring rate of snails frame(%)

Number of snails

Density of snails (number/0.11m2)

Sedge silvergrass community

330

310

0.94

428

1.29

Weed community

330

330

1.00

128

0.39

3-year-old poplar plantation

330

250

0.76

56

0.17

5-year-old poplar plantation

330

0

0.00

0

0.00

8-year-old poplar plantation

330

0

0.00

0

0.00