Science. 1968 Nov 15;162(3855):796-9. doi: 10.1126/science.162.3855.796.
Annual pollen deposition per unit area measured in sediment traps is two to four times greater than deposition measured in surface sediment cores. The difference is due to repeated redeposition of pollen from the sediment surface during seasons of water circulation. This process reduces variations in the percentages of different pollen types in sediment, but causes differences in the total amount of pollen accumulated in various parts of the lake basin.
每年在沉积物捕集器中测量的单位面积花粉沉积量是在表层沉积物岩芯中测量的沉积量的两到四倍。这种差异是由于在水循环季节中花粉从沉积物表面反复再沉积造成的。这个过程减少了不同花粉类型在沉积物中的百分比变化，但导致了在湖泊盆地不同部分积累的花粉总量的差异。
