自1998年以来,绰墩遗址发现了大量的马家浜时期的水稻田。对遗址Ⅵ工作区两个剖面P01和P03进行植硅体和孢粉分析,P01的植硅体分析结果显示在马家浜文化中晚期、马桥文化时期、宋代直至现代,研究点都有水稻生长。孢粉分析还显示,在植硅体浓度较高土壤沉积物中,水生植物花粉在整个孢粉谱中所占比例较小,与现代水田相似。这表明,在新石器时代,人类在种植水稻过程中可能已将杂草除去。绰墩遗址孢粉分析的结果可能为判断古水稻土提供一个有效的方法。 Since 1998, Zhuodun site has discovered a large number of paddy fields in Majiabang period. Phytolith and sporo-pollen analysis were performed on two sections P01 and P03 in the work area of ​​site VI. The results of phytolith analysis of P01 showed that in late Majiabang culture period, Maqiao culture period and Song Dynasty until modern times, Grow. Pollen analysis also showed that in the sediments with higher concentrations of phytoliths, the percentage of pollen in aquatic plants was smaller than that in modern paddy fields. This shows that during the Neolithic period weeds might have been removed by human beings during rice cultivation. The results of sporopollen analysis at Chuodun site may provide an effective method for judging ancient paddy soil.