Human intervention in the natural ecological environment of cities has led to the need for cities to bear the urban ecological problems brought about by human activities. Some regions are pursuing economic growth by strongly transforming nature to achieve a better living environment. These deviations from natural ecological principles have led to the continuous destruction and devouring of the green ecological substrate that sustains urban development. In this paper, we analyze the current situation of pollution in the air environment, water environment and soil environment of city A, and propose protection strategies to improve the natural environment of city A. Then, we propose ecological restoration strategies, ecological development strategies, ecological design strategies and ecological protection strategies to improve the environment of city A for the ecological construction of city A. It is hoped that the research of this paper can provide reference suggestions for urban natural environment (UNE) protection.

Athanasios V. Serafeim. Four Ecological Strategies for Urban Natural Environment Protection. Nature Environmental Protection (2020), Vol. 1, Issue 1: 1-9. https://doi.org/10.38007/NEP.2020.010101.

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