Research on the Stability and Marginal Habitat Effect of Agro-ecosystems Based on the Logistic Model

Chuhao Fang; Xinyue Hu; Zhihan Zhang

doi:10.54097/x26ppa92

Authors

Chuhao Fang
Xinyue Hu
Zhihan Zhang

DOI:

https://doi.org/10.54097/x26ppa92

Keywords:

Food web, Agro-ecosystem stability, Logistic model, multi-objective optimization algorithm, Hierarchical analysis.

Abstract

The paper constructed a model of the food web underlying a new agro-ecosystem. It reflected the changes in the population size of various organisms through a new model formed by partially adjusting the logistic model, and then optimized the population trends of multiple populations through a multi-objective optimization algorithm and hierarchical analysis, and ultimately selected the most reasonable population allocation scheme in the agro-ecosystem in order to maintain the stability of the agro-ecosystem. The paper found that the use of chemicals was not the most important factor in agro-ecosystem stability. In addition, the paper assumed the introduction of species 1 (herbivore) and species 2 (predator), and constructed the kinetic equations for the changes in the populations of plants, insects, species 1, and species 2, respectively, through logistic modeling, and after data review as well as quantification obtained a visual representation of the changes in crop health over time. The paper found that reasonable application of marginal habitat effect can reduce pest populations, improve soil health, increase plant reproduction with ecological diversity and stability, and contribute to environmental protection, with a fast growth rate in crop yields, and superior long-term economic benefits.

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