A look into spiral shell frame that is used for investigation of seedling planting garden plant leading thread within range oncomelania

The utility model discloses a look into spiral shell frame that is used for investigation of seedling planting garden plant leading thread within range oncomelania, it is fan -shaped to be the closure, including two vertical bars and arc -shaped strip, two vertical bars as closed sectorial radius, arc -shaped strip as closed sectorial arc, the length of two vertical bars be 0.23~0.43m, arc -shaped strip's arc length be 0.46~0.86m. The utility model discloses simple structure, convenient to use, low cost are different from and look into the spiral shell frame under conventional threadiness or the surface form ambient condition, can adapt to the peripheral oncomelania investigation of plant under the seedling planting ground ambient condition, are favorable to carrying out comparison and analysis with other environment oncomelania investigation results. The utility model discloses the peripheral oncomelania distribution of plant can be appraised betterly, the accuracy of the data that obtain is guaranteed. 本实用新