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The seasonal variation of meteorological elements such as temperature and precipitation leads to the seasonal cycle of parameters included in the dynamic model of grass field ecosystem. Our results show that there exist periodic solutions of the two-variable dynamic model of grass field ecosystem developed in our previous paper, provided the parameters of the model undergo periodic seasonal variation...
An analytical dynamic model of grass field ecosystem is developed and analyzed. The model is a maximum simplified one, consisting of only two variables: the biomass of the grass field and the wetness of underlying soil. The other factors influencing the behaviour of macro-ecosystem, such as sunlight, temperature, precipitation, consuming and the physico-chemical properties of soil, are considered...
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