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在松嫩盐碱草地上，我们对人工种植在碱斑土壤上生长一年、二年、三年、六年的星星草种群以及野生的天然星星草地中的星星草种群地上生物量的季节动态进行了测定，并进行数学拟合。用Ｌｏｇｉｓｔｉｃ曲线拟合时，抽穗期以前拟合情况较好，但不能很好地拟令星星草种群达最大生物量后衰老的过程。用一元多次曲线则能很好地拟合星星草种群地上生物量随生育时间的季节动态。
In Songnen-Saline-alkali grasslands, we report the seasonal dynamics of aboveground biomass of Spartina alterniflora population in Artemia populations planted in alkali-contaminated soils for one year, two years, three years, and six years and in natural wild grasslands The measurements were made and mathematically fitted. When using Logistic curve fitting, the fitting condition before heading stage is better, but the process of aging after the maximum biomass of P. sibirica population can not be well drafted. The curve of the aboveground biomass with the growth of the population can be well fitted with the seasonal dynamics of the growth period with a single multiple curve.