Fungi, as decomposers, mainly decompose wood fibers and litter. The decomposition of wood fiber and litter is an important part of the ecosystem cycle. The aim of this study is to establish a fungal population competition model to simulate the effects of the intrinsic characteristics of fungi on the interactions between different fungi. In addition, the effects of short - and long-term climatic changes on fungal community interactions, as well as the advantages and disadvantages of fungi in communities under different climatic conditions are studied. This study hopes to find and predict the rules between the fungal decomposition process and the ecological environment, and explore the effects of fungal species diversity on the ecosystem. First use ARIMA (0,1,0) to predict the trend of temperature change in Europe in the next three years, and then use Power BI to predict the trend of precipitation change in Europe in the next three years. Next using Linear interpolation method for curve fitting, fitting out the temperature - humidity - fungal distribution density diagram, and then for a long-term in Europe (2009-2023 - the temperature of precipitation data) and short-term rainfall anomaly in London (2018-2019 years) in the diagram, respectively for long-term and short-term trend of fungal distribution density changing with time.

Xuan Wu, Shuxian Cai, Yi Yan. Study on the Relationship between the Interaction of Different Fungi and Environment Change. Academic Journal of Environment & Earth Science (2021) Vol. 3 Issue 1: 25-28. https://doi.org/10.25236/AJEE.2021.030105.

[1] M. A. Daniel S.Maynard, "Consistent trade-offs in fungal trait expression across broad spatial scales," Nature Microbiology, vol. 4, pp. 846-853, 2019.

[2] O. J. B. L. Hiscox J, "Fungus wars: basidiomycete battles in wood decay," Studies in Mycology, 2018.

[3] P. K. Tomas Vetrovsky, "A meta-analysis of global fungal distribution reveals climate-driven patterns," Nature Communications, 2019.

[4] M. Loreau, "Microbial diversity, producer-decomposer interactions and ecosystem processes: a theoretical model," The Royal Society, pp. 303-309, 2001.

[5] K. Rogers, "Britannica," [Online]. Available: https://www.britannica.com/science/dominance.

[6] Z. XIXI, "ScienceNet," 21 January 2019. [Online]. Available: http://news.sciencenet.cn/sbhtmlnews/ 2019/1/342833.shtm.

[7] F. S. C. D. U. HOOPER, "Effects of Biodiversity on Ecosystem Functioning: A Consensus of Current Knowledge," Ecological Society of America, vol. 75, no. 1, pp. 3-35, 2005.

[8] M. A. B. D. L. L. L. T. A. v. D. S. D. F. J. A. G. T. W. C. Daniel S. Maynard, "Diversity begets diversity in competition for space," NATURE ECOLOGY & EVOLUTION, vol. 1, 2017.