摘要：Ceratophyllum demersum L.is a common aquatic herbaceous plant with strong vitality and wide temperature adaptability.It can grow well when the water temperature is as low as 4℃.It is found in natural waters in North China,East China, Central China,and Southwest China.It is distributed and is an important primary producer of ecosystems.The purpose of this study is to establish a numerical model of Ceratophyllum demersum L. individual growth,using the visual modeling software STELLA to describe the key process of Ceratophyllum demersum L.growth and its relationship with environmental parameters,with net growth (Ngrowth) = total growth (Ggrowth) – Respiration – Ekelp is the basic framework to simulate and predict the biomass and leaf length changes of Ceratophyllum demersum L.The model simulates the fit between the length and dry weight results of Ceratophyllum demersum L.and the measured values.The R2 values are 0.945 and 0.964,respectively,indicating that the model can well reflect the true growth of Ceratophyllum demersum L.A reliable individual growth model is the basis for evaluating the cultivation capacity of Ceratophyllum demersum L.and can provide the basis for decision-making for the spatial planning of the cultivation area of Ceratophyllum demersum L.
