Abstract

In arid environments, plant communities often cooperate to fight the harsh conditions. In order to study the interaction between plant populations and explore their survival under drought conditions, an improved Lotka-Volterra model was established by means of mechanism analysis to consider the interaction between different plant species, and the species correlation degree was added. Light, water, air competition among plants and other important parameters affecting plant growth, a relatively complete model of plant drought adaptability was fitted. Then, the fourth order Runge Kutta method was used to solve the model numerically, and the relationship between the amount of various plants in the community with time was obtained, and the relationship between plant populations under drought conditions was explored.

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