We obtain the chengdu area plain vegetation that occupies the superiority by the herbaceous plants through the palynological analyses . the local area is the low - lying wetland . it was growing the massive ferns that like wet environment and the trees on a higher knoll and the mountainous region 通过孢粉分析得出成都平原地区植被以草本植物占优势，局部地区为低洼的湿地，生长着大量喜湿的蕨类植物，在平原周围较高的丘陵和山地上生长着乔木。
