Fig. 4

The percentage of important value accounting for by the coexisting species in seed bank and vegetation on the riverbank. 1, Setaria glauca; 2, Cynodon dactylon; 3, Bidens frondosa; 4, Digitaria ciliaris; 5, Rumex dentatus; 6, Artemisia argyi; 7, Setaria viridis; 8, Hyrtanandra; 9, Polygonum hydropiper; 10, Phyllanthus urinaria; 11, Cyperus iria; 12, Solanum nigrum; 13, Xanthium sibiricum; 14, Bidens pilosa; 15, Gnaphalium affine; 16, Paspalum distichum; 17, Mazus japonicus; 18, Eclipta prostrata; 19, Acalypha australis; 20, Youngia japonica; 21, Phytolacca acinosa; 22, Trigonotis peduncularis; 23, Aeschynomene indica; 24, Polygonum aviculare; 25, Magnolia multiflora; 26, Rubus phoenicolasius; 27, Stellaria media; 28, Viola betonicifolia; 29, Senecio scandens; 30, Glochidion wilsonii; 31, Oxalis corniculata; 32, Cyperus rotundus