一种基于Stella和R语言的湿地氮素动力学模型

通过Stella软件的可视化建模环境，快速开发构建了一种适用于表流型人工湿地的氮素循环动力学模型，并将模型翻译成R语言，可实现编程计算、数据分析及空间分析等多种算法和功能与动力学模型的集成，能大大提高模型的分析和预测能力，加强模型的实用性和应用能力.以大沙河人工湿地氨氮污染负荷最大削减能力为例，本文基于此模型，集成R语言强大的编程和计算能力，建立了进水水质与水量的调度函数关系，并确定了人工湿地最优进水水量、水质和污染负荷最大削减能力.

An ecological kinetic model of nitrogen cycle in the wetland based on Stella and R language

Based on the visual environment of Stella software, we developed a kinetic model of nitrogen cycle in the surface-flow constructed wetland, and complied it in R language. We integrated various algorithms and functions such as programming calculation, data analysis and spatial analysis with the dynamic model, and greatly improved the analysis and prediction performance, the practicability and application ability of the model. We applied our model to study the maximum reduction capacity of ammonia nitrogen pollution load in Dashahe constructed wetland. Our model successfully established the function relationship between the water quality and the water flow. Furthermore, the optimal water inlet water, water quality and the maximum effect of reducing the ammonia pollution load was also determined.